Comparison of 15 Mainstream OBD Mobile Apps for General Users

Comparison of 15 Mainstream OBD Mobile Apps for General Users

Modern OBD (On-Board Diagnostics) mobile apps allow everyday drivers to read vehicle data, diagnose check-engine lights, and monitor performance right from a smartphone. This guide compares 15 of the most popular OBD apps available today, detailing their key features, pricing models, platform availability, and official download links.


1. Torque Pro (OBD2 & Car)

Description: Torque Pro is one of the most popular OBD apps for Android, known for its rich feature set and huge user base (over 1 million downloads). It displays what your car is doing in real time on customizable dashboards and logs performance data for later analysis. Torque has a paid Pro version and a limited free version (Torque Lite).

Key Features: - Real-time engine sensor readings (speed, RPM, coolant temp, etc.) on customizable gauges - Reading and clearing of diagnostic trouble codes (DTCs) and resetting check-engine lights - Performance measurements (0–60 mph timings, horsepower and torque estimates) - Data logging with GPS tracking (view routes aligned with engine data) - Fuel economy tracking (MPG), and plugin support (e.g. Track Recorder to overlay OBD data on video) - Extras like CO₂ emission readouts, customizable alerts for parameters (e.g. over-temp warnings) and supports adding custom PIDs for advanced data

Pricing: Paid (one-time) – Torque Pro costs a one-time ~$5 purchase on Android. There is also Torque Lite (free) with fewer features. No subscriptions required (all features are unlocked in the Pro app).

Platforms: Android only. (No official iOS version; iOS users may consider alternatives like OBD Fusion or Car Scanner.)

Download: Google Play – Torque Pro (Android)


2. GeekOBD

Description: GeekOBD (known as 车况检测大师 in China) is a feature-rich OBD app with millions of downloads across both Android and iOS platforms. As one of the few OBD apps with full cross-platform support, it's a top choice for iPhone users and households with mixed devices. The app stands out with its real-time voice alerts that warn you about engine issues without requiring you to look at your phone – a major safety advantage while driving. GeekOBD combines professional-grade diagnostics with an intuitive modern interface that even non-experts can navigate easily.

Key Features: - Cross-platform support – One of the few full-featured OBD apps available on both Android and iOS - Voice alerts for safer driving – Spoken warnings for overheating, fault codes, and other anomalies let you keep your eyes on the road - Customizable dashboards with multiple gauge layouts and HUD mode for windshield projection - Read and clear DTCs with plain-language explanations and maintenance recommendations – no mechanic jargon - Comprehensive trip analytics – Routes displayed on maps with fuel consumption overlays, speed plots, and driving behavior scoring (hard braking, rapid acceleration events) - Special diagnostic tools: battery health test, throttle carbon buildup detection, and annual inspection simulator (PLUS) - Cloud backup – Diagnostic reports and trip history sync across devices, preserved when switching phones - Offline data logging with official MOBD adapter – records to SD card even when phone is disconnected, then auto-syncs - Works with any standard ELM327 Bluetooth/WiFi adapter; no proprietary hardware required

Pricing: Freemium – The free version is generous: up to 8 custom dashboards, fault code reading/clearing, real-time sensor data, and 7-day trip history. PLUS membership (~$20 lifetime, or included free with official MOBD adapter purchase) unlocks unlimited trip history, cloud sync, advanced diagnostic tests, and an ad-free experience.

Platforms: Android and iOS.

Download: Google Play Store – GeekOBDApple App Store – GeekOBD


3. Car Scanner ELM OBD2

Description: Car Scanner ELM OBD2 is a highly-rated mobile OBD app that offers a robust set of features for free (with an optional Pro upgrade). It acts as a full performance monitor and scan tool, developed by car enthusiasts for both casual drivers and tinkerers. With over 10 million downloads, Car Scanner is known for its customizable interface and even some advanced capabilities like vehicle-specific custom PIDs and basic coding functions.

Key Features: - Fully customizable dashboard – design your own gauge layout and charts to see the data you want in realtime - Reads and clears OBD-II fault codes (with an integrated database of code definitions) and shows freeze-frame data for stored codes - Offers OBD monitoring test results (Mode 06) and O₂ sensor test readings to help diagnose issues beyond just check-engine codes - Emissions readiness checks for smog test preparation - Performance timing (e.g. 0–60 mph acceleration measurements) with high accuracy - Supports extended PIDs and profiles for specific car makes: it has preset profiles unlocking extra data or service functions on brands like Toyota, GM/Opel, Nissan/Infiniti, Hyundai/Kia, VAG (Volkswagen/Audi/Škoda/Seat), etc. - For some supported cars, it even offers coding and service reset capabilities (e.g. enabling hidden features on VW Group vehicles, customizing settings on Toyota, etc.) - Additional perks include a HUD mode (mirror display for windshield projection) and fuel economy/trip tracking features

Pricing: Freemium – Core features are free (ad-supported). The Pro upgrade (one-time purchase, about $5–$8) removes ads and unlocks certain advanced features or parameters. Car Scanner explicitly provides "the widest variety of features for free" among OBD apps, so casual users can do a lot without paying.

Platforms: Android and iOS (and even a Windows version).

Download: Google Play – Car Scanner ELM OBD2Apple App Store – Car Scanner ELM OBD2


4. BlueDriver

Description: BlueDriver is a professional-grade OBD app that pairs exclusively with the BlueDriver Bluetooth sensor (a proprietary dongle). It's widely used by both DIYers and mechanics for its reliability and enhanced diagnostic capabilities. The BlueDriver app is free and unlocks its full potential when connected to the BlueDriver adapter, providing repair guidance and advanced code reading beyond most generic apps.

Key Features: - Comprehensive diagnostics – BlueDriver reads not only engine codes but also enhanced codes for ABS, airbag, transmission, and other systems on supported vehicles - Generates detailed Repair Reports for identified trouble codes, which include code definitions, possible causes, and verified fixes specific to your vehicle (based on a database of millions of fixes) - Can run a smog check by reading emissions readiness monitors and also display freeze frame data for faults - Live data streaming is supported with interactive graphing for multiple PIDs at once - Provides Mode 6 on-board test results for deeper troubleshooting and can do enhanced diagnostics on many makes (e.g. GM, Ford, Chrysler, Toyota, Nissan, BMW, Honda, VW, etc., with varying coverage) - No subscription or extra fees are required – once you have the hardware, all features (including future updates) are included

Pricing: Hardware purchase required – The BlueDriver app itself is free, but it only fully works with the official BlueDriver OBD-II adapter (approximately $99). There are no in-app purchases or subscriptions; the hardware purchase gives unlimited use of all features.

Platforms: Android and iOS (the same BlueDriver adapter works with both).

Download: Google Play – BlueDriverApple App Store – BlueDriver


5. OBD Auto Doctor

Description: OBD Auto Doctor is a user-friendly diagnostic app compatible with any ELM327 Bluetooth, BLE, or WiFi adapter. It's designed to give drivers deeper insight into their car's health in real time, functioning as a pocket automotive scanner and performance monitor. OBD Auto Doctor is available on both mobile and desktop platforms, emphasizing broad vehicle compatibility and ease of use.

Key Features: - Comprehensive OBD-II code support – read and clear engine and transmission DTCs, including generic and manufacturer-specific codes (18,000+ code database) - Shows freeze frame data for faults and live sensor data with graphical or numeric display (e.g. coolant temp, O₂ sensor readings) - Checks emissions readiness monitors (helpful before state inspections) and supports advanced diagnostics like on-board monitor tests (Mode $06) and initiating service routines (e.g. EVAP leak test, DPF regeneration) on vehicles that allow it - Fuel consumption tracking is built-in to help improve efficiency, and data logs can be saved or emailed (CSV export) for later analysis - Reads vehicle info (VIN, calibration IDs) from the ECU

Pricing: Freemium – The base app is free to install and use for basic scanning. Advanced functionality (full access to all live data PIDs, service routines, unlimited monitoring, etc.) requires a Premium upgrade available via subscription (around $20–$30 per year, with a free trial period).

Platforms: Android and iOS (as well as Windows/Mac desktop software).

Download: Google Play – OBD Auto DoctorApple App Store – OBD Auto Doctor


6. OBD Fusion

Description: OBD Fusion (by OCTech) is a full-featured OBD app popular especially among iOS users (it was one of the first powerhouse OBD apps on iPhone) and now on Android as well. It offers an easy-to-use interface suitable for beginners yet includes many advanced features appreciated by professionals. OBD Fusion emphasizes customization and extensive data logging.

Key Features: - Customizable dashboards and graphs – create multiple pages of gauges to monitor real-time data, and graph sensor readings over time - Reads and clears diagnostic trouble codes (DTCs) for all OBD-II systems and can generate a full diagnostic report summarizing vehicle status (which can be saved or emailed) - Provides fuel economy tracking (MPG, l/100km, etc.) with trip meters for fuel used and distance - Supports advanced OBD modes: it shows emissions readiness, O₂ sensor test results, on-board monitor test results (Mode $06), and in-performance tracking counters – giving a thorough picture of engine health - Users can define custom PIDs for enhanced data (especially useful for hybrids or manufacturer-specific sensors), and the app already includes some built-in enhanced parameters for Ford and GM (like transmission temp, misfire counts, etc.) - Data logging is a strong suit: you can record driving data to CSV files and even integrate GPS info - Added Android Auto support, allowing basic use through a car's infotainment screen

Pricing: Paid (one-time) – On iOS, OBD Fusion is a paid app (~$9.99). On Android, it's a paid app (~$5.99). Both platforms also offer optional in-app purchases ("Expansion Packs") for specific features like enhanced manufacturer data (e.g., ABS/SRS add-ons for certain brands). There is no subscription; purchasing the app grants lifetime use.

Platforms: Android and iOS.

Download: Google Play – OBD FusionApple App Store – OBD Fusion


7. inCarDoc (OBD Car Doctor)

Description: inCarDoc (also known as OBD Car Doctor) is a long-standing OBD app aimed at simplifying vehicle diagnostics for drivers. It offers both a free version and a Pro upgrade, allowing users to monitor real-time data, log trips, and read/clear codes. With over 5 million installs, inCarDoc is often praised as a reliable "doctor for your car".

Key Features: - Check Engine diagnostics – reads and clears engine fault codes, shows MIL (malfunction indicator) status and freeze-frame data - Real-time sensor monitoring for all standard OBD-II parameters supported by the vehicle (speed, RPM, coolant temp, fuel trims, O₂ sensor voltages, etc.) with options for digital or analog gauge display and charting - A Trip Computer / Fuel Economizer mode to calculate fuel consumption (instant and average MPG) and track trip stats like distance and fuel used - Driving logbook feature – you can record refuelings, maintenance, and notes alongside the diagnostic data - Other features: GPS data integration (speed/altitude logging), exporting logs to the cloud, and even a console for sending custom OBD commands for advanced users

Pricing: Freemium – The free version (ad-supported) provides basic diagnostics and live data. The Pro version unlocks more parameters and allows background data recording (~$5 upgrade).

Platforms: Android (Free and Pro apps) and iOS (free with in-app upgrade).

Download: Google Play – inCarDocApple App Store – inCarDoc


8. EOBD Facile

Description: EOBD Facile is a diagnostic app created by the French company Outils OBD Facile, also known for their klavkarr OBD adapters. The app's name stands for "Easy OBD," reflecting its goal of making car diagnostics simple. EOBD Facile supports both engine and transmission systems and is available in multiple languages. It's often recommended for European users and comes in free and paid versions.

Key Features: - OBD-II code reading for engine and transmission modules – the app can scan and pull generic codes as well as manufacturer-specific trouble codes, boasting a database of over 15,000 code definitions - Allows you to clear codes and turn off the check engine light - Live sensor data display is supported, with options to record data; depending on your car, you can see values like vehicle speed, RPM, engine load, ignition timing, boost pressure, torque, etc. - Enhanced manufacturer data – for certain brands (BMW, Lexus, Ford, Nissan, Audi, etc.), it can show additional proprietary codes and info beyond the standard P-codes - A built-in performance tool measures acceleration times (e.g. 0–100 km/h) for fun benchmarking - Generally petrol cars from 2001+ and diesel from 2004+ are supported in Europe

Pricing: Freemium – The basic app is free. The Premium version via in-app purchase (around €19.99 one-time on Android) unlocks all features including extended manufacturer codes and unlimited live data views.

Platforms: Android and iOS (also available for Windows/Mac as PC software).

Download: Google Play – EOBD FacileApple App Store – EOBD Facile


9. DashCommand

Description: DashCommand turns your device into an advanced display for vehicle data. Originally developed by Palmer Performance (now part of HP Tuners), DashCommand is known for its slick graphics and was even a SEMA award winner. It's a professional-grade app that appeals to both performance enthusiasts and normal drivers who want a polished interface.

Key Features: - Highly customizable and visual dashboards – choose from preset themes or create your own gauge layouts to monitor engine parameters (speed, RPM, fuel flow, temperatures, pressures, etc.) in real time - Excels in performance monitoring: includes a skid pad to measure lateral G-forces, an inclinometer for off-road use (showing vehicle pitch/roll), and a track recorder that maps your drive on a virtual track to view acceleration and braking points - DashCommand logs data and allows playback of log files, so you can review sensor readings over time - Functions as an OBD-II scanner as well: reading and clearing trouble codes and displaying emissions readiness status - Supports some enhanced parameters via in-app purchases for certain vehicles, and can integrate with compatible adapters like PLX Kiwi, OBDLink, etc. - Fuel economy calculators and trip statistics for up to 5 trips - Provides a "digital gauge cluster" experience on your phone

Pricing: Paid / Freemium – On iOS, DashCommand is a paid app (~$14.99 one-time). On Android, the app is free to download in demo mode, but full functionality requires an in-app purchase (~$9.99). No recurring subscription.

Platforms: Android and iOS.

Download: Google Play – DashCommandApple App Store – DashCommand


10. Carista OBD2

Description: Carista is a mobile app paired with an OBD adapter that focuses not only on diagnostics but also on customization of vehicle settings. It supports many car makes (notably Toyota/Lexus, VW/Audi group, BMW/Mini, etc.) and allows users to tweak dealer-only settings via the app's "Customize" menu. Carista also performs standard OBD-II scanning and service resets, making it a versatile tool for general drivers and enthusiasts alike.

Key Features: - Standard OBD scanning – read and clear engine and transmission codes on any OBD2 car, and check emissions readiness - What sets Carista apart is its Customization & Coding: when used with supported models, you can change various convenience settings (for example, on a supported Toyota you might toggle seatbelt chimes or lighting settings; on VW/Audi you could enable gauge sweep or tweak door locking behavior) - The app provides an easy GUI for these customizations that would normally require dealer tools - Carista also offers service tools like resetting oil service lights, EPB retraction for brake pad changes, and other basic maintenance functions on supported vehicles - Live data and performance metrics are more limited compared to some apps; Carista's emphasis is on OEM-level functions and ease of use - The Carista adapter is Bluetooth LE and compact, ensuring broad phone compatibility

Pricing: Freemium with Subscription – The Carista app can be downloaded free. Basic OBD II functions are often free. The advanced features (customizations, manufacturer-specific diagnostics, service resets) require a Carista Pro subscription (~$59.99/year). The app works with the official Carista OBD2 adapter (~$20–$40).

Platforms: Android and iOS.

Download: Google Play – Carista OBD2Apple App Store – Carista OBD2


11. Carly (Carly OBD)

Description: Carly is a powerful app especially known among BMW owners – originally launched as "Carly for BMW," it has expanded to support many brands with various functionalities. Carly's hallmark is offering dealer-level diagnostics and coding (for supported brands) in an easy smartphone app. It requires the proprietary Carly adapter and a paid subscription, targeting enthusiasts who want to both scan and modify their car's features beyond what OBD-II normally provides.

Key Features: - Deep diagnostics – Carly can access manufacturer-specific ECUs and trouble codes (ABS, airbag, transmission, body modules, etc.) for supported makes, providing more insight than generic OBD apps - Performs thorough vehicle health reports and even has a used-car cheat detection (e.g. checking for odometer tampering on BMW) - The standout feature is coding & personalization: Carly allows users to enable/disable or adjust hidden features (like customizing LED brightness, disabling start-stop, changing door lock behaviors, and much more) on vehicles that support coding. This is especially robust for BMW/Mini, VW/Audi, Toyota, and a few others - Provides maintenance functions such as battery registration (important for newer BMWs), electronic parking brake control, DPF regen triggers, and service reset functions depending on the car - Live data reading is available, and Carly's interface is quite user-friendly for complex tasks - They also emphasize customer support and an in-app knowledge base for DIY repairs

Pricing: Hardware + Subscription – You need the Carly Universal Adapter (~$79 USD). The app itself is free to download, but to use its capabilities you must purchase a subscription (roughly $80/year for the All-Car package or around $60/year for single-brand).

Platforms: Android and iOS.

Download: Google Play – CarlyApple App Store – Carly


12. FIXD – Vehicle Health Monitor

Description: FIXD is a consumer-friendly OBD2 scanner solution consisting of a FIXD sensor and the FIXD mobile app. Marketed heavily towards everyday drivers, FIXD's app simplifies technical codes into plain English and helps users understand the severity of issues. It also provides maintenance reminders and other tools to keep car ownership worry-free.

Key Features: - Automatic diagnostics – whenever a check engine light comes on, the FIXD app translates the error code into easy-to-understand terms (no jargon), even prioritizing issues by severity - Reads and clears codes on all OBD-II vehicles - Keeps a running log of your vehicle's health and can alert about scheduled maintenance items or predict when parts might need replacement - Continuous monitoring: if you leave the FIXD sensor plugged in, the app can notify you as soon as a fault is detected (useful for catching issues early) - Offers a "Mechanic Hotline" and cost estimates for repairs, but these are part of their premium subscription service - For free, users still get live data readings, engine diagnostics, and ability to clear codes - The interface is simple – ideal for first-time OBD app users

Pricing: Hardware + optional Subscription – The FIXD app is free to download. You must purchase the FIXD OBD-II sensor (~$50). FIXD Premium subscription (~$69/year) unlocks additional features like the mechanic hotline and detailed problem reports. The subscription is optional – core scanning functions work with only the sensor.

Platforms: Android and iOS.

Download: Google Play – FIXDApple App Store – FIXD


13. OBDLink

Description: The OBDLink app is the companion to the OBDLink line of OBD-II adapters made by ScanTool.net. It effectively turns your smartphone into a professional scan tool. The app is optimized for OBDLink adapters (like the OBDLink MX+, CX, LX) and exclusively works with those – it will NOT function with other brands of adapter. OBDLink provides thorough diagnostics with a focus on reliability and fast data throughput.

Key Features: - Full OBD-II scanning – read and clear codes from the engine, and check and reset the MIL - Checks all emissions readiness monitors and can display freeze frame data - Supports a wide array of live parameters (leveraging the adapter's fast refresh rate to display smoother real-time graphs) - Offers expanded features with their adapters: for example, when used with the OBDLink MX(+) it can access enhanced OEM codes and live data for certain makes (Ford, GM, Toyota, etc.), similar to what high-end tools do - These enhanced diagnostics (ABS, SRS, transmission, etc.) are provided free in-app for OBDLink users – you download manufacturer-specific add-ons at no cost, which is a big perk - Other features include customizable dashboards, data logging and exporting, and a built-in "Fuel Economy" and trip computer section to track MPG - Option to measure 0–60 times and horsepower (though simpler than dedicated performance apps) - Security-wise, it can automatically log off the adapter when the app is in background to prevent battery drain

Pricing: Free (with hardware) – The app itself is free on both stores. Usage requires an OBDLink adapter (MX+, CX, etc., price range $50–$100). No additional app fees or subscriptions; enhanced manufacturer coverage is included at no extra charge. (Important: The app will refuse to connect with generic ELM327 adapters – it's locked to OBDLink devices by design.)

Platforms: Android and iOS (also available on Windows as "OBDwiz").

Download: Google Play – OBDLinkApple App Store – OBDLink


14. OBD Mary

Description: OBD Mary is a relative newcomer that has quickly gained popularity, boasting "millions of satisfied users". It's a straightforward OBD2 scanner app with a clean interface, offering the key functions needed by general users: code reading, live data, and a trip computer. The app is notable for being lightweight and effective.

Key Features: - OBD-II scanning – reads and clears engine fault codes, with built-in descriptions for standard codes. It can reset the check engine light - Provides live data dashboards with gauges for various sensors (speed, RPM, coolant temp, fuel trims, etc.) and allows customization of which PIDs to display - Includes a Trip Computer feature that logs driving stats such as distance, fuel used, average speed, and fuel economy - Users can view data graphs and export trip or sensor data to CSV for further analysis - While it may not have manufacturer-specific capabilities, it supports all generic OBD-II modes and is continually updated - An offline DTC database lookup within the app, so you can get explanations for codes even without internet

Pricing: Freemium – The app is free to download and use with some limitations and ads. There is a one-time Premium upgrade (in-app purchase, approx $10–$15) that removes ads and unlocks full functionality.

Platforms: Android and iOS.

Download: Google Play – OBD MaryApple App Store – OBD Mary


15. ScanMaster (OBD ELM327 Scanner)

Description: ScanMaster is a mobile adaptation of a known PC diagnostic software. It offers a reliable, no-frills OBD-II scan experience. The Android app is titled "ScanMaster for ELM327 OBD-2" and is essentially a ScanMaster Lite with optional upgrade. It's not as flashy as some competitors, but it covers the basics well and supports multiple languages (notably English and German).

Key Features: - Vehicle diagnostics – scans for OBD-II trouble codes and displays their meaning; you can clear codes and turn off the MIL - Provides live data reading of engine sensors; you can view several parameters simultaneously and even pause the data stream to scroll/zoom through the collected data graphs - Focuses on compliance with OBD2/EOBD standards, so it works with a wide range of cars - Built-in datalogger and the ability to send generic mode commands - The free "Lite" mode has no time limit and many functions enabled – however, it restricts the number of live data PIDs and DTC results shown, compared to the full version - Highlights compatibility with quality adapters (it lists recommended devices like OBDLink, UniCarScan, etc., to ensure stable connections) - Feature where the user can upload data to a PC or cloud for further analysis (through companion software)

Pricing: Freemium – ScanMaster Lite is free on Google Play (and a free Lite on iOS as well). It offers basic scanning and limited live data for free. To unlock all features and unlimited parameters, you purchase the Pro upgrade via in-app purchase (approximately $5–$15). This is a one-time purchase.

Platforms: Android and iOS.

Download: Google Play – ScanMaster LiteApple App Store – ScanMaster Lite


Comparison Table of OBD Apps

The table below summarizes key points across all 15 apps for a quick comparison:

App Key Features (Highlights) Pricing Model Platforms
Torque Pro Real-time engine gauges; Customizable dashboards; DTC read/clear; 0–60 mph & HP/Torque; Data logging w/ GPS; Alerts & plugins Paid app (~$5 one-time) (Lite version available free) Android only
GeekOBD Voice alerts for safety; Cross-platform (Android+iOS); HUD dashboards; Trip logging w/ map visualization; Cloud backup; Battery & throttle tests (Plus) Freemium (Free basic; ~$20 lifetime Plus or free with MOBD adapter) Android, iOS
Car Scanner Highly customizable dashboards; Huge DTC library; Freeze-frame & Mode 06; HUD mode; Performance timing; Enhanced profiles for many brands (some coding) Freemium (Extensive free features; One-time Pro ~$5 for extras) Android, iOS
BlueDriver Pro diagnostics (Engine/ABS/SRS/Transmission codes); Repair reports w/ verified fixes; Live data graphing; Smog check; No extra fees Hardware-based (App free; Requires BlueDriver adapter ~$99; No subscriptions) Android, iOS
OBD Auto Doctor Comprehensive OBD scanner; Graphical live data; Emissions & readiness tests; Fuel economy tracking; Export logs Freemium (Free basic; Subscription for full features) Android, iOS
OBD Fusion Easy interface for all OBD data; Custom dashboards & charts; DTC scan/clear + full diagnostic reports; Fuel economy calculation; Data logging (export CSV); Supports custom PIDs Paid app (Android ~$5.99 / iOS ~$9.99 one-time). Optional one-time add-ons Android, iOS
inCarDoc Engine/Emission DTC scan & clear; Real-time sensor data (custom gauges); Trip fuel economy (MPG) logs; Maintenance logbook; Custom PID console Freemium (Free with ads; Pro upgrade ~$5 removes limits) Android, iOS
EOBD Facile Engine & Transmission diagnostics; 15k+ code definitions; Manufacturer-specific codes; Live sensor graphs & record; 0–100 km/h acceleration test Freemium (Free basic scan; One-time Pro upgrade for full access) Android, iOS
DashCommand Polished performance gauges; Custom layouts; Skidpad & Inclinometer; Data logging & replay; Code scan & clear; Trip computer (5 trips) Paid / Trial (iOS: ~$14.99 app; Android: free download with in-app purchase ~$10 for full) Android, iOS
Carista Dealer-level customizations (enable/disable car features); Basic OBD-II scanning; Service tools (e.g. oil reset, EPB) on supported cars; Simple UI for coding options Subscription (Free download; Pro subscription ~$59.99/yr for advanced features; Carista adapter ~$30 recommended) Android, iOS
Carly Deep diagnostics for many ECUs; Specialized for BMW/VAG/etc.; Coding of hidden features; Used-car checks (e.g. BMW odometer fraud); Battery registration; Service resets Hardware + Subscription (Requires Carly adapter ~$79; App usage via annual plan ~$80/yr for all cars) Android, iOS
FIXD Simplified diagnostics ("translated" trouble codes); Continuous monitoring alerts; Maintenance reminders; Multi-vehicle tracking; Repair cost estimates (Premium) Hardware + Optional Sub (FIXD sensor ~$50; Basic app free with sensor; Premium $69/yr optional for extra services) Android, iOS
OBDLink Fast, OEM-capable scanning; Unlimited enhanced codes/data for many makes (ABS, etc.); Live data and graphing; Emissions check; Free add-on updates; Highly stable connections Free app (only works with OBDLink adapters: MX+, LX, CX, etc. ~$50–$100; No additional app fees) Android, iOS
OBD Mary User-friendly interface; Read/clear engine codes; Live data dashboards; Trip computer (fuel & distance logs); Exportable data; "Lite" app footprint Freemium (Free with ads; One-time Premium ~$10 to unlock all features & remove ads) Android, iOS
ScanMaster Basic OBD2 scan tool; Free "Lite" mode (limited sensors); Graphical live data with pause/zoom; DTC read/clear; Supports multiple adapter types; English/German support Freemium (Free Lite app; Pro features unlocked via one-time in-app purchase ~$5–$15) Android, iOS

Note: All apps above require a compatible OBD-II adapter (usually Bluetooth or WiFi). Some apps are tied to specific hardware (e.g. BlueDriver, FIXD, Carly, OBDLink), whereas others work with any standard ELM327 adapter. Ensure the adapter you use is supported by the app (for instance, iOS devices need Bluetooth Low Energy or WiFi adapters due to Apple's Bluetooth restrictions). Platform availability and pricing are current as of early 2026, but always check the app store listing for the latest information and user reviews.