Best OBD2 Apps: Your Ultimate Guide to Vehicle Diagnostics

In today’s automotive landscape, understanding your vehicle’s health is no longer a mystery thanks to onboard diagnostics II (OBD2) apps. With the rise of sophisticated mobile app development, numerous applications have emerged, empowering drivers with real-time insights into their car’s performance. For anyone seeking to proactively manage vehicle maintenance and prevent costly breakdowns, discovering the best OBD2 apps is a crucial step. These digital tools offer an unparalleled way to communicate with your car, deciphering its signals to ensure smoother journeys and fewer unexpected roadside troubles.

Essentially, best OBD2 apps transform your smartphone into a powerful diagnostic tool, granting access to a wealth of data from your vehicle’s engine. From monitoring speed and rotation angles to gauging pressure and temperature, these apps present vital parameters in an accessible format. However, the sheer volume of OBD2 apps available for Android and iOS can make choosing the right one a daunting task. Navigating this crowded market to find the best OBD2 app for your specific needs requires careful consideration, as many options fail to deliver on their promises. Investing time in testing subpar apps can be frustrating and unproductive.

To prevent you from falling into this trap, we’ve compiled a comprehensive guide to the best OBD2 apps currently available for both iOS and Android devices. We understand the frustration of purchasing an app only to find it lacking in functionality or value. Our aim is to ensure you make an informed decision and select an app that truly enhances your car ownership experience.

This article will delve into 17 of the top best OBD2 apps, each offering unique features and capabilities. Any of these selections would be a valuable addition to your automotive toolkit, providing the diagnostic power you need to stay informed and in control of your vehicle’s health.

So, if you’re ready to explore the world of best OBD2 apps and unlock the secrets your car is trying to tell you, let’s get started!

Top OBD2 Apps for Android and iOS: Detailed Reviews

1. Torque Pro (OBD2 & Car): The Android Powerhouse for Car Enthusiasts

Torque Pro stands out as a highly acclaimed OBD2 Bluetooth app, frequently lauded by Android users as the best OBD2 app for its platform. Boasting over 1,000,000 downloads on the Play Store, this paid app (approximately $5) is widely considered a worthwhile investment, as corroborated by numerous positive reviews.

Image: Torque Pro OBD2 App Dashboard on Android. A smartphone displays the Torque Pro app interface, showcasing a customizable dashboard with real-time vehicle parameters like speed, RPM, and engine temperature.

Torque Pro transforms your Android device into a real-time vehicle monitoring center. Its beautifully designed and fully customizable dashboard displays crucial data directly on your mobile screen. Beyond real-time monitoring, Torque Pro offers robust data logging capabilities, allowing users to export compiled data to Torque Pro servers or via email for later analysis and review. This feature is particularly useful for tracking vehicle performance over time or sharing diagnostic information with a mechanic.

Pros:

• Highly Customizable Dashboard: Personalize the app’s appearance with multiple themes to match your preferences and easily monitor the parameters most important to you.
• Seamless Data Sharing: Share screenshots of your dashboard via social media and email, facilitating easy communication of vehicle data.
• Integrated GPS Compass: An in-built GPS-based compass enhances navigation and location tracking.
• Versatile Data Display: Supports both graph data visualization for trend analysis and car dock integration for convenient in-vehicle use.
• CO2 Emission Readouts: Provides insights into your vehicle’s environmental impact with CO2 emission monitoring.
• Journey Tracking with Video: The track recorder feature allows you to capture video footage of your journeys, potentially useful for documenting driving conditions or performance.
• Intelligent Performance Alerts: Set alarms and warnings for suboptimal car performance, such as exceeding coolant temperature thresholds (e.g., 120°C), enabling proactive issue detection.
• Broad Android Compatibility: Impressively supports older Android versions, including 2.0, ensuring accessibility for a wide range of devices.

Cons:

• Paid App: Requires upfront purchase from the Google Play Store.
• Bluetooth Pairing Issues: Some users have reported Bluetooth pairing bugs, although these are often resolvable with app updates or device-specific troubleshooting.

2. OBD Auto Doctor: Comprehensive Diagnostics and Fuel Efficiency Tracking

OBD Auto Doctor operates on principles similar to many leading car diagnostic apps, offering robust vehicle monitoring capabilities. Compatible with ELM327 Bluetooth and Wi-Fi adapters, it diligently tracks a wide array of critical vehicle sensors and parameters in real-time.

Image: OBD Auto Doctor App Interface Showing Real-time Data. A tablet displays the OBD Auto Doctor app, highlighting a user-friendly interface with live readings of engine parameters, gauges, and diagnostic information.

OBD Auto Doctor excels in its ability to monitor multiple control units simultaneously, including both engine and transmission systems. Data logging is facilitated through CSV format export via email, enabling detailed record-keeping and analysis. A standout feature is its optimized fuel consumption monitoring parameter, which can contribute to significant cost savings on fuel expenses.

Pros:

• Real-Time Data Display: Presents live vehicle sensor data on screen, empowering drivers to make informed decisions regarding their car’s maintenance and performance.
• Flexible Data Visualization: Supports both numerical and graphical displays of sensor data, catering to different user preferences for data interpretation.
• Universal OBD2 Compliance: Compatible with all OBD2 compliant vehicles, ensuring broad applicability across various car makes and models.
• GPS Integration: Offers GPS support for location-based data logging and vehicle tracking.
• Dedicated Customer Support: Provides access to a helpful customer service team available around the clock.
• Advanced Customization: Offers extensive customization options to tailor the app’s functionality and display to individual needs.
• Versatile Unit Tracking: Supports both imperial and metric units, accommodating users in different regions and preferences.
• Extensive Trouble Code Database: Monitors over 18,000 trouble codes, providing comprehensive diagnostic coverage.
• Emission Readiness Monitoring: Tracks readiness status to indicate when a vehicle is prepared for emission testing, simplifying compliance checks.

Cons:

• In-App Purchases and Premium Upgrade: Access to certain advanced features requires in-app purchases or a premium upgrade subscription.
• Connectivity and Accuracy Concerns: Some users have reported occasional connection issues or instances of inaccurate readings.

3. InCarDoc Pro: Advanced Car Diagnostics with User-Friendly Design

InCarDoc Pro has consistently ranked among the best OBD2 apps, earning recognition in car review circles as a leading diagnostic tool. Known for its high-level car scanning and diagnostic capabilities, InCarDoc Pro presents its features through a clean and uncluttered home screen interface, prioritizing ease of use.

Image: InCarDoc Pro App Home Screen on a Smartphone. An Android phone displays the InCarDoc Pro app, showcasing a streamlined home screen with clear icons for diagnostics, parameters, and settings.

A valuable feature of InCarDoc Pro is the availability of a free version. This allows potential users to verify adapter and car compatibility before committing to the paid version, which is priced affordably at under $5. In terms of connectivity, InCarDoc Pro supports ELM327 USB, Bluetooth, and Wi-Fi adapters, and is compatible with most modern Android devices.

Pros:

• Wide Vehicle Compatibility: Officially compatible with all OBD2 compliant vehicles listed on the developer’s website, ensuring reliable performance across supported models.
• Real-Time Parameter Monitoring: Enables users to read real-time engine and vehicle parameters, providing immediate insights into vehicle operation.
• Overlay Mode for Economy Data: Offers an overlay mode to display fuel economy data in the background or over other running applications, facilitating continuous monitoring without interrupting other app usage.
• Fuel Economy and Acceleration Widgets: Includes dedicated widgets for tracking fuel economy and acceleration performance, providing quick access to key metrics.
• GPS Support: Integrates GPS functionality for location-aware data logging and tracking.
• Cloud Data Reporting: Allows users to upload reporting data to cloud storage services, enabling data backup and accessibility across devices.
• Email Data Sharing for Professional Assistance: Facilitates data sharing via email, simplifying the process of obtaining professional assistance with car repairs by sending diagnostic information to mechanics.

Cons:

• Android Version Requirement: Requires Android 4.0.3 and up, potentially excluding users with older devices.
• Bluetooth Connection Errors: Some users have experienced occasional errors during Bluetooth connection attempts.

4. Car Scanner ELM OBD2 App: Free and Feature-Rich Diagnostic Tool

For users seeking comprehensive vehicle insights without upfront costs, the Car Scanner ELM OBD2 App emerges as a compelling option. This free car diagnostic app empowers users to delve deep into their car’s electronic control unit (ECU) data, uncovering a wealth of parameters and diagnostic information.

Image: Car Scanner ELM OBD2 App Customizable Dashboard. A smartphone showcases the Car Scanner ELM OBD2 app, highlighting a customizable dashboard with gauges displaying various vehicle parameters and performance metrics.

Car Scanner ELM OBD2 enables proactive problem detection, allowing users to identify potential issues before they escalate. For those familiar with fault codes, the app enhances self-diagnosis and minor repair capabilities, empowering users to address simple problems independently and make informed decisions about when professional mechanic intervention is necessary.

Considering its extensive compatibility and user base, Car Scanner ELM OBD2 is arguably the best OBD2 app in terms of accessibility. Versions are available across a wide range of platforms, including Android, iOS, Windows PC, and mobile. With over 2 million installations across supported platforms, its popularity underscores its value and effectiveness. Notably, Car Scanner ELM OBD2 boasts an impressive 4.7 rating, the highest among the apps featured in this list, reflecting strong user satisfaction.

Pros:

• Universal OBD2 Standard Compatibility: Compatible with all OBD2 standard vehicles, ensuring broad applicability.
• Wide Adapter Support: Compatible with most Wi-Fi or Bluetooth OBD2 ELM327 adapters, offering flexibility in hardware choices.
• Personalized Dashboard: Features a customizable dashboard, allowing users to prioritize and track their preferred vehicle parameters.
• Fuel Consumption Analysis: Provides fuel consumption statistics, aiding in fuel efficiency monitoring and driving habit optimization.
• Settings Backup and Restore: Offers settings backup and restore functionality, simplifying app setup and configuration migration.
• Multilingual Support: Supports multiple languages, including English, Russian, and Polish, catering to a diverse user base.

Cons:

• Android Version Requirement: Requires Android 4.3 and above, potentially limiting compatibility with older devices.
• In-App Purchases for Full Functionality: Optimal performance and access to advanced features may necessitate in-app purchases.

5. EOBD Facile: User-Friendly Interface and Trip Recording Features

EOBD Facile is a versatile OBD2 Car Diagnostic app available for both Android and iOS platforms. Supporting all ELM327 Wi-Fi and Bluetooth adapters, this app provides users with access to essential vehicle gauges and parameters, facilitating informed decision-making regarding car maintenance and operation.

Image: EOBD Facile App Dashboard Displaying Vehicle Gauges. A smartphone shows the EOBD Facile app, emphasizing a clean dashboard layout with gauges for vehicle speed, engine RPM, temperature, and other key parameters.

Depending on the data provided by your car’s ECU, EOBD Facile can display a comprehensive suite of gauges, including vehicle speed, engine RPM, engine temperature, ignition timing, engine torque, air intake volume, and more, all presented clearly on the app’s dashboard. EOBD Facile has achieved over 1 million installations on the Google Play Store, demonstrating its widespread adoption and user trust.

Pros:

• Real-Time Sensor Data: Provides a real-time display of vehicle sensor readings, offering immediate insights into vehicle status.
• Extensive Fault Code Database: Includes a database of over 11,000 fault codes and definitions, aiding in accurate diagnosis and troubleshooting.
• Fault Code Clearing: Enables users to delete fault codes and address check engine light issues, potentially resolving minor problems independently.
• Trip Record Storage: Supports storing trip records on an SD card for later review using the EOBD-Facile PC/Mac software, facilitating detailed trip analysis.
• Route Planning: Offers route planning functionality, a helpful feature for long journeys and trip optimization.

Cons:

• Prior OBD2 App Experience Recommended: May require some prior experience with OBD2 apps to fully leverage its capabilities effectively.
• No USB Adapter Support: Does not support USB adapter connections, limiting connectivity options to Bluetooth and Wi-Fi.

6. HobDrive: Advanced Diagnostics for OBD2 and Non-OBD2 Vehicles

HobDrive distinguishes itself as a premium OBD2 app for Android, offering advanced car tracking features. While it is one of the more expensive options on the Google Play Store (around $10), its comprehensive capabilities and broad vehicle support justify the investment for serious car enthusiasts and those seeking in-depth diagnostics.

Image: HobDrive App Customizable Dashboard with Graph Data. A tablet displays the HobDrive app, showcasing a customizable dashboard with both digital gauges and graphical representations of vehicle data, including fuel consumption and engine performance.

A key advantage of HobDrive is its compatibility with not only all OBD2 compliant vehicles but also certain non-OBD2 vehicles, such as Delphi mr240 (Chevrolet) and Bosch systems. This expanded compatibility makes it a valuable tool for users with vehicles that may not fully adhere to the OBD2 standard. HobDrive also offers cross-platform accessibility, seamlessly integrating with CarPCs (Windows/Linux), car audio systems (Windows CE), Windows Phone 8/10, and iOS devices.

Pros:

• Highly Customizable Dashboard: Features a customizable dashboard that displays a wide range of parameters provided by the vehicle’s ECU, allowing users to tailor the display to their specific needs.
• Versatile Adapter and Platform Support: Supports GPS and ELM327 Bluetooth and Wi-Fi adapters, as well as compatibility with various operating systems beyond just smartphones.
• Overheating and Fuel Trim Monitoring: Tracks critical parameters like overheating and suspicious fuel trims, providing early warnings of potential engine issues.
• Clear MIL Code Explanations: Offers clear explanations of malfunction indicator lamp (MIL) codes, simplifying fault code interpretation.
• Estimated Odometer Reading: Estimates car odometer readings, potentially useful for tracking mileage and maintenance intervals.
• MPG Calculation for Diesel Vehicles: Accurately calculates MPG for diesel vehicles, even without battery assistance, providing valuable fuel efficiency data.
• Extended Graphical Gauges (Pro Version): The Pro version includes extended graphical gauges, offering enhanced data visualization and analysis capabilities.

Cons:

• Payment Issues in Some Regions: Some users have reported difficulties completing in-app payments in certain geographical locations.
• Android Version Requirement: Requires Android version 3 and above, potentially excluding users with very old devices.

7. OBDeleven: Advanced Features and “One-Click Apps” for Enhanced Control

When evaluating the android app development and feature sets of OBD2 apps, OBDeleven stands out as a particularly innovative option. Beyond providing a clear view of ECU parameters, OBDeleven goes further by incorporating “One-Click Apps.” These unique features enable users to control various car functions with a single tap, adding a layer of convenience and advanced customization not found in many competing apps.

Image: OBDeleven App Interface with “One-Click Apps” Feature. A smartphone displays the OBDeleven app, highlighting the “One-Click Apps” section, showcasing icons for various vehicle functions that can be activated or customized with a single tap.

To fully utilize OBDeleven’s “One-Click App” functionality, a stable network connection is recommended. Access to a wider range of advanced car tracking tools and features requires a Premium upgrade. Despite these considerations, OBDeleven is a highly regarded tool within car review circles and is favored by both automotive enthusiasts and professional mechanics for its diagnostic depth and control capabilities.

Pros:

• Comprehensive Diagnostic Trouble Code Management: Supports reading and clearing of all diagnostic trouble codes (DTCs) from the vehicle’s ECU, facilitating thorough diagnostics.
• Multilingual Support: Offers support for multiple languages, catering to a global user base.
• Active Social Media Community: Maintains an active social media community, providing a platform for user support, knowledge sharing, and app-related discussions.
• Car Battery Analyzer: Includes a car battery analyzer, a feature not commonly found in other OBD2 apps, adding to its diagnostic versatility.
• DIY Car Fix Manuals: Provides access to manuals containing DIY car repair guides, empowering users to perform basic maintenance tasks.
• Retrieved Car History: Allows users to retrieve the history of connected cars, useful for tracking vehicle maintenance and diagnostic records.
• Control Unit Reset: Supports control unit reset functionality, enabling users to perform certain system resets when necessary.

Cons:

• Network Dependency for Optimal Performance: Requires a network connection for optimal performance, particularly for “One-Click App” features.
• Advertisements in Free Version: The free version contains advertisements, which can be removed by upgrading to the Premium subscription.

8. Dash – Drive Smart: Smart Driving Insights and Vehicle Analysis

Dash – Drive Smart is a car tracking app that integrates seamlessly with OBD2 software, including OBDeleven, and offers a suite of smart car analysis tools. Claiming compatibility with cars dating back to 1996 models, Dash provides a broad range of vehicle support.

Image: Dash – Drive Smart App Dashboard with Driver Score. A smartphone showcases the Dash – Drive Smart app, emphasizing a dashboard with a driver score, fuel efficiency metrics, and GPS tracking information.

Dash aims to provide users with comprehensive insights to enhance their driving experience, improve driving performance, and make informed decisions for long-term vehicle health. Notably, Dash offers functionality even without a dedicated OBD2 device, leveraging smartphone sensors for basic driving data.

Pros:

• Optimized Customizable Dashboard with Background Mode: Features an optimized and customizable parameter dashboard that can operate in background mode, allowing continuous data monitoring without active app use.
• Driver Score and Leaderboard: Provides a driver score and leaderboard feature, enabling users to compare their driving performance with others and encourage safer, more efficient driving habits.
• Multi-Vehicle Support with VIN Decoding: Supports multiple vehicles with automatic Vehicle Identification Number (VIN) decoding, simplifying vehicle setup and management.
• GPS Parking Locator: Includes a GPS-tracking tool to help users locate their parked vehicle, a convenient feature in urban environments or unfamiliar locations.
• Nearby Gas Price Comparison: Offers nearby gas price comparison features, helping users save money on fuel purchases by identifying the most affordable gas stations in their vicinity.

Cons:

• Battery Drain Concerns: Some users have reported concerns about the app draining their mobile device’s battery, particularly with continuous background operation.
• Compass Glitches: The compass feature has been reported as occasionally glitchy, although this may be addressed in app updates.
• Network Connection Issues: Some users have experienced occasional network connection problems, potentially affecting real-time data updates or online features.

9. Engine Link (iOS): iOS-Focused Diagnostics with Customizable Displays

Engine Link is a car diagnostic app designed specifically for iOS devices, similar in functionality to Torque Pro but tailored for the Apple ecosystem. Compatible with ELM327 Wi-Fi and Bluetooth adapters, Engine Link aims to provide seamless connectivity, although recent user feedback suggests potential issues with Wi-Fi connection reliability.

Image: Engine Link App Dashboard on iPhone. An iPhone displays the Engine Link app, highlighting a customizable dashboard interface with gauges and real-time vehicle data tailored for iOS users.

Despite recent Wi-Fi connectivity concerns, Engine Link remains a highly regarded car tracking application on iOS, priced at approximately $6 on iTunes. It offers a comprehensive suite of car monitoring features, empowering users to stay informed about their vehicle’s condition and maintain control over its performance.

Pros:

• Customizable Parameter Dashboard: Features a one-stop customizable dashboard, allowing users to focus on tracking only the parameters most relevant to their needs, simplifying data monitoring.
• Emission and Fuel Consumption Monitoring: Provides tools to monitor emission rates and fuel consumption, aiding in eco-conscious driving and fuel efficiency optimization.
• Extensive OBD2 Fault Code Management: Enables users to read and clear thousands of OBD2 fault codes, facilitating comprehensive diagnostics.
• Heads-Up Display (HUD) Option: Offers a heads-up dashboard display option, projecting vehicle data onto the windshield for convenient viewing while driving (requires compatible hardware or phone placement).
• No In-App Purchases or Subscriptions: Available for a one-time purchase price with no recurring in-app purchases or subscription fees, offering a cost-effective diagnostic solution.
• Extensive Language Support: Supports over 20 languages, catering to a diverse international user base.
• Torque Custom PID File Support: The latest update includes support for Torque Custom PID files, enhancing customization and data interpretation capabilities for advanced users.

Cons:

• ECU Data Reading Issues: Some users have reported instances where the app connects to the adapter but fails to read ECU data, potentially hindering diagnostic functionality.
• iOS Version Requirement: Requires iOS 8.0 or later to run, potentially excluding users with older iOS devices.

10. ScanMaster: Accurate Fault Code Reading and Real-Time Data

ScanMaster is another capable car monitoring tool designed for use with ELM327 OBD2 adapters. While not as widely known as some other scanners, this Android application maintains a respectable 4.0 rating with over 1 million installations, indicating consistent user satisfaction and reliable performance.

Image: ScanMaster App Interface with Real-time Vehicle Performance Data. A smartphone displays the ScanMaster app, showcasing a clean interface with real-time data readings and graphical representations of vehicle performance parameters.

With ScanMaster, users gain a clear real-time overview of their car’s performance and can accurately read fault codes, potentially preventing overcharging by mechanics by providing users with independent diagnostic information. The app developers offer a Lite (free) version, providing access to essential parameters such as VIN, CVN, fault codes, and MIL status. However, the Pro version is required to unlock the full feature set, including access to a comprehensive database of fault codes and detailed error descriptions.

Pros:

• Free Version with Essential Parameters: Offers a handful of valuable tracking parameters even in the free Lite version, providing a taste of its capabilities without initial cost.
• Multilingual Support (German and English): Supports both German and English languages, catering to users in these regions.
• User-Friendly Navigation: Features an easy-to-navigate interface, simplifying app usage for both novice and experienced users.
• Broad ELM327 Adapter Compatibility: Supports most ELM327 adapters, offering flexibility in hardware choices.
• Data Recording Capabilities: Includes data recording functionality, enabling users to log vehicle data for later analysis and review.
• Graphical Data Representation: Provides clear graphical representations of data, facilitating easier analysis and trend identification.

Cons:

• Ineffective Customer Support: Some users have reported issues with the responsiveness and effectiveness of the customer support team.
• Device Incompatibility Reports: A few users have reported instances of device incompatibility, although these may be device-specific or addressed in app updates.
• Android Version Requirement: Compatible with Android 4.0 and above, potentially excluding users with older devices.

11. DashCommand (iOS): Premium iOS Diagnostics with Award-Winning Design

DashCommand positions itself as the ultimate solution for transforming your mobile device into an advanced engine data display, a claim supported by its reputation and accolades. Notably, DashCommand received the SEMA Show award for best mobile electronic product in 2014, recognizing its innovation and quality.

Image: DashCommand App Customizable Gauges and Performance Metrics. An iPhone displays the DashCommand app, emphasizing customizable gauges, performance metrics, and a visually appealing dashboard interface for iOS users.

DashCommand is among the more expensive OBD2 scanner apps for iOS (priced at $14.99 on iTunes) but delivers a premium experience with high-performance gauges, fuel economy tracking, engine monitoring tools, and emission testing capabilities for up to five trips. User reviews consistently indicate that DashCommand provides excellent value for its price, justifying the investment for serious iOS car enthusiasts.

Pros:

• Ease of Use: Features an intuitive and user-friendly interface, simplifying navigation and data interpretation.
• Customizable Performance Gauges: Allows extensive customization of performance gauges, enabling users to prioritize and track their preferred data points.
• Inclinometer for Off-Roading: Includes an inclinometer to display rolling angle and vehicle pitch, valuable for off-road driving and monitoring vehicle stability.
• Data Logging and Playback: Supports data logging, recording, and playback, facilitating detailed analysis of vehicle performance over time.
• Sophisticated Trip Computer: Features a sophisticated trip computer that maintains statistics for up to five trips, providing comprehensive trip data and fuel economy analysis.
• Graphical Data Representation: Offers graphical representations of collected data, enhancing data visualization and trend identification.

Cons:

• iPhone X Incompatibility: Reportedly not fully compatible with iPhone X, potentially limiting usability for users with this specific model.
• Haltech Elite 2599 Compatibility Issues: Compatibility issues have been reported with Haltech Elite 2500 ECUs, potentially limiting functionality for users with these systems.
• In-App Purchases for Specific Car Models: May contain in-app purchases for access to features specific to certain car models, potentially adding to the overall cost depending on vehicle type.

12. BlueDriver: Free and Feature-Rich with Advanced Diagnostics

BlueDriver stands out as a compelling OBD2 scanner app available for both iOS and Android platforms. Remarkably, it is considered one of the best OBD2 apps that is also free, contributing to its high 4.6 rating on iTunes and over 2 million downloads.

Image: BlueDriver App Interface with Diagnostic Report. An iPad displays the BlueDriver app, highlighting a diagnostic report screen with detailed vehicle health information, trouble codes, and potential repair suggestions.

Whether used on Android or iOS, BlueDriver provides access to critical ECU parameters, enabling users to monitor essential vehicle functions. It facilitates scanning for and clearing trouble codes, freezing frame data for detailed diagnostics, and sharing collected data via email. Impressively, BlueDriver includes features often found only in paid OBD2 apps, making it a favorite among professional mechanics and car enthusiasts seeking a powerful yet free diagnostic solution.

Pros:

• Wireless Connection: Establishes a wireless connection with the vehicle, eliminating cable clutter and enhancing ease of use.
• Smog Readiness Check: Supports smog readiness checks, simplifying emissions testing compliance.
• Reduced Travel Costs: Potentially reduces travel costs by enabling users to diagnose and address minor car issues independently, avoiding unnecessary trips to mechanics.
• Free and Regular Updates: Offers free and regular app updates, ensuring ongoing improvements, bug fixes, and feature enhancements.
• On-Board Monitoring Test Results: Displays on-board monitoring test results, providing detailed insights into vehicle system performance.
• Improved Diagnostics for ABS, Airbag, Transmission, and More: Provides enhanced diagnostic capabilities for systems beyond just the engine, including ABS, Airbag, and Transmission systems.
• Repair Report Generation and Sharing: Allows users to generate and share repair reports, facilitating communication with mechanics and documentation of vehicle maintenance.

Cons:

• iOS Version Requirement: Requires iOS 8 and above, potentially excluding users with older iOS devices.
• iPhone XR Issues (Potentially Resolved): Some users reported issues with iPhone XR compatibility, although these may have been resolved through subsequent app updates.

13. GoFAR: Mileage Tracking and Fuel Saving Focus

GoFAR distinguishes itself as a high-performance car diagnostic device and app combination with a strong emphasis on mileage tracking and fuel efficiency. Maintaining compatibility with most OBD2 compliant car adapters, GoFAR aims to provide comprehensive vehicle health monitoring while promoting cost savings.

Image: GoFAR Device and App Interface Focused on Fuel Efficiency. A smartphone displays the GoFAR app interface, showcasing fuel efficiency metrics, driving statistics, and potentially the compact GoFAR OBD2 device plugged into a car’s OBD2 port.

A key selling point of GoFAR is its IRS compliance, potentially enabling users to save on taxes related to vehicle mileage tracking for business or other eligible purposes. Furthermore, GoFAR prioritizes fuel savings, claiming the potential to reduce fuel costs by 10-30%, making it an attractive option for cost-conscious drivers. The Android and iOS applications maintain a solid 4.7 rating, reflecting positive user experiences with its features and performance.

Pros:

• Easy Installation and Use: Designed for easy installation and user-friendly operation, simplifying setup and daily use.
• One-Year Warranty: Offers a one-year warranty on initial device purchase, providing peace of mind and protection against defects.
• Plain English Error Alerts: Sends error alerts in plain English, simplifying fault code interpretation and making diagnostics more accessible to non-technical users.
• Mechanic Finder Platform: Provides a platform for connecting with nearby mechanics, streamlining the process of finding professional repair services.
• Extensive Fault Code Database: Includes a database of over 3000 fault codes and descriptions, offering comprehensive diagnostic coverage.
• Driver Leaderboard for Cost Savings: Features a global leaderboard where drivers can compete based on cost savings achieved, adding a gamified element to fuel efficiency and vehicle maintenance.
• Maintenance and Renewal Alerts: Sends alerts for tire pressure checks, insurance renewals, and registration renewals, promoting proactive vehicle maintenance and compliance.
• No Subscription Fees: Requires a one-time device purchase with no ongoing subscription or hidden fees, offering long-term cost certainty.

Cons:

• Upfront Purchase Required: Requires an initial device purchase (around $99), representing a higher upfront cost compared to app-only solutions.

14. FIXD – Vehicle Health Monitor: Simple Diagnostics with Part Ordering

FIXD distinguishes itself by prioritizing simplicity without sacrificing diagnostic quality. Fault codes within the FIXD app are translated into clear, easily understandable language, enabling users to quickly grasp the nature of any vehicle issues and take prompt action.

Image: FIXD App Interface with Simplified Diagnostic Explanations. A smartphone displays the FIXD app, emphasizing simplified fault code explanations in plain language, making vehicle diagnostics accessible to non-technical users.

FIXD offers its own OBD2 Wi-Fi and Bluetooth adapters designed to optimize app performance and gauge monitoring. The app is available on Android via the Google Play Store and maintains a solid 4.5 rating from user reviews, indicating positive user experiences and reliable performance.

Pros:

• Quick and Easy Setup: Designed for quick and easy installation, allowing users to start using the app within minutes.
• Beginner-Friendly: Particularly suitable for first-time OBD2 app users due to its simplified interface and clear explanations.
• Maintenance Reminders: Allows users to schedule maintenance reminders, promoting proactive vehicle care and preventing missed service intervals.
• Worn Part Alerts: Provides alerts for worn-out car parts that require repair or replacement, enabling timely maintenance and preventing potential breakdowns.
• Easy Onboarding Process: Features a streamlined and user-friendly onboarding process, simplifying initial app setup and configuration.
• In-App Part Ordering: Offers the ability to purchase car parts directly through the app, streamlining the repair process and providing convenient access to necessary components.
• Helpful Customer Support: Provides access to a helpful customer support team, assisting users with app-related questions or technical issues.

Cons:

• Past App Bugs: Older app versions have been reported to contain bugs, although these may have been addressed in subsequent updates.
• FIXD Adapter Dependency: Primarily designed to work with FIXD adapters, potentially limiting compatibility with third-party adapters.
• In-App Purchases: Offers in-app purchases for certain features or services, potentially adding to the overall cost depending on user needs.

15. Carly for BMW: BMW-Specific Diagnostics and Customization

Carly for BMW caters specifically to BMW owners, offering advanced diagnostics and customization options tailored to the BMW vehicle ecosystem. Compatible with adapters provided by Carly, this app provides in-depth vehicle insights for BMW models.

Image: Carly for BMW App Interface with BMW-Specific Diagnostics. A smartphone displays the Carly for BMW app, emphasizing BMW-specific diagnostic features, vehicle health checks, and customization options tailored for BMW vehicles.

Whether you are a new or experienced BMW driver, Carly provides access to vital car gauges and parameters in real-time. While primarily focused on BMW vehicles, the Android app also supports standard OBD2 features, offering a degree of broader diagnostic capability. It is recommended to test compatibility with the Lite version before purchasing the full app to ensure it meets your specific BMW model’s needs.

Pros:

• Thorough BMW Health Checks: Provides comprehensive health checks of BMW vehicle electronic components, offering in-depth diagnostic coverage.
• Used Car Check Feature: Includes a used car check feature, valuable for assessing the condition of a used BMW before purchase.
• One-Click Electric Parking Brake Control: Offers one-click control for the electric parking brake, adding a convenient function for BMW owners.
• Premium Carly Adapter Support and Warranty: Carly adapters are backed by premium customer support and a lifetime warranty, providing long-term reliability and assistance.
• DIY Battery Registration Support: Supports DIY battery registration, enabling users to perform battery replacements and registration procedures independently.
• Excellent Customer Service: Offers a reputation for excellent customer service, providing responsive support for app and adapter-related inquiries.

Cons:

• Expensive Carly Adapters: Carly adapters are generally more expensive compared to generic ELM327 adapters, representing a higher upfront investment.
• Limited Fault Codes for Specific BMW Models: May have limited fault code coverage for certain BMW models, such as the 2 series F45/F46, potentially requiring users to verify compatibility for their specific BMW.

16. Carista OBD2 App: Customizable Settings for Select Brands

Carista OBD2 App is another notable option in the OBD2 app market, utilizing a Bluetooth-enabled OBD2 plug. Accompanied by its dedicated app, Carista offers robust diagnostic and customization capabilities, particularly for select car brands including Toyota, BMW, Subaru, Mini, Audi, VW, and Lexus.

Image: Carista OBD2 App with Customization Options for Supported Brands. A tablet displays the Carista OBD2 app, highlighting customization options and brand logos of supported car manufacturers like Toyota, BMW, Audi, and VW.

A standout feature of Carista is its “Customize” option, accessible once the OBD2 plug is connected. This feature allows users to access and modify numerous ECU settings typically only adjustable by dealerships, providing a high degree of personalization and control over vehicle functions.

Pros:

• Bluetooth Connectivity: Utilizes Bluetooth for wireless connection between the OBD2 plug and the app, simplifying setup and use.
• Compact Design: Features a compact OBD2 plug design, minimizing obtrusion in the vehicle’s OBD2 port.
• Customizable Settings: Offers extensive customizable settings for supported car brands, enabling personalized vehicle configurations.
• Phone-to-OBD2 Scanner Innovation: Represents a phone-centric approach to OBD2 scanning, leveraging smartphone processing and display capabilities.
• 1-Month Free Trial: Provides a 1-month free trial, allowing users to test the app’s features and compatibility before committing to a purchase.
• Cross-Platform Support (iOS and Android): Supports both iOS and Android platforms, ensuring broad accessibility across smartphone ecosystems.
• Detailed Diagnostics: Offers detailed diagnostic capabilities, providing in-depth insights into vehicle health and potential issues.

Cons:

• In-App Purchases: Requires in-app purchases to unlock full functionality and customization options beyond the trial period.

17. OBD Fusion: User-Friendly with Extensive Data Logging

Developed by OCTech, the OBD Fusion app, when paired with a compatible OBD2 vehicle scanner, provides comprehensive vehicle diagnostic reporting. Widely considered one of the more popular apps for vehicle diagnostics, OBD Fusion is recognized for its ease of use and robust feature set.

Image: OBD Fusion App Customizable Dashboard with GPS Navigation. A smartphone displays the OBD Fusion app, highlighting a customizable dashboard with gauges and integrated GPS navigation features for vehicle tracking and diagnostics.

OBD Fusion’s primary strength lies in its user-friendliness, making it suitable for both novice and experienced users. The app’s customizable dashboard allows users to tailor the displayed information to their specific needs, enabling a focused view of desired engine functions and parameters.

Pros:

• Customizable Dashboards: Features highly customizable dashboards, allowing users to personalize the displayed data and layout to their preferences.
• Cross-Platform Compatibility (iOS and Android): Compatible with both iOS and Android platforms, ensuring broad accessibility across smartphone ecosystems.
• GPS Navigation Features: Integrates GPS navigation features, potentially combining diagnostic data with location-based information for trip analysis or vehicle tracking.
• Emission Monitoring: Offers emission monitoring capabilities, aiding in emissions testing preparation and compliance checks.
• Extensive Data Logging: Provides extensive data logging capabilities, enabling detailed recording and analysis of vehicle parameters over time.

Cons:

• Feature Expansion Packs: Certain advanced features are locked behind expansion packs, potentially requiring additional purchases to access full functionality.
• No Diagnostic Data Sharing Features: Lacks built-in features for directly sharing diagnostic data, potentially requiring users to manually export and share data if needed.

Conclusion: Choosing the Best OBD2 App for Your Needs

With this extensive list of best OBD2 apps for iOS and Android, you are now better equipped to select the ideal app to monitor and understand your vehicle’s health.

However, before making a purchase and installation decision, it’s crucial to confirm the compatibility of your chosen OBD2 app with your specific car model through functional testing. Many OBD2 app developers offer free “lite” versions for this purpose, allowing you to test compatibility before committing to a paid version. Others may require upfront purchase, so carefully research the compatibility verification options available for each app. Identify the app that best aligns with your vehicle and diagnostic needs, and confidently install it to unlock a wealth of vehicle insights.

To further assist your decision, here are our top recommendations from this comprehensive review:

Best Android OBD2 App:

Torque Pro: A paid service renowned for its excellent features, extensive customization, and broad compatibility across numerous car models, making it the best OBD2 app for power users on Android.

Best iOS OBD2 App:

OBD Fusion: A paid service lauded for its ease of use, comprehensive tracking of vital vehicle parameters, and robust feature set, solidifying its position as a top choice for iOS users seeking the best OBD2 app for their needs.