FORScan Viewer vs OBD JScan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FORScan Viewer
This application allows users to read and view information about the on-board network of Ford, Mazda, Lincoln, and Mercury vehicles. It supports various OBD adapters and displays diagnostic trouble codes for all modules.
- Read vehicle on-board network configuration
- View Diagnostic Trouble Codes (DTC)
- Supports Ford, Mazda, Lincoln, Mercury vehicles
- Compatible with OBDLink MX+, vLinker adapters
- Displays module information
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FORScan Viewer is an application that allows users to connect to a compatible OBD adapter and view information about the on-board network of Ford, Mazda, Lincoln and Mercury vehicles. FORScan Viewer is an independent third-party application and is not affiliated with, endorsed by, sponsored by, or approved by Ford Motor Company, Mazda Motor Corporation, or their affiliated brands. Ford, Lincoln, Mercury, and Mazda are trademarks of their respective owners and are used solely to describe vehicle compatibility. The application communicates only with compatible third-party OBD-II adapters owned and operated by the user. The application does not control, modify, or operate any equipment manufactured by Ford, Mazda, Lincoln, or Mercury. SUPPORTED OBD ADAPTERS - OBDLink MX+ (recommended) - vLinker FS Bluetooth (recommended) - vLinker FD BLE (recommended) - other ELM327-compatible WiFi or BLE adapter (not recommended). Attention! Some ELM327 adapters are not fully compatible with this application and may not work properly. COMPATIBILITY FORScan Viewer is designed to display information for the following vehicles: Ford, Lincoln, Mercury: 1996-2022 models, some 1994-1995 models - Mazda: 1996-2022 models. Important note: Mazda 7G models (new Mazda 3, CX-30, MX-30, CX-50, etc) have limited or no support! - Other vehicle manufacturers are NOT supported FEATURES - Reading and displaying information about the on-board network configuration of the connected vehicle (modules), including Diagnostic Trouble Codes (DTC) for all modules - More functions are available in FORScan Lite LEGAL NOTICE FORScan Viewer does not contain proprietary vehicle software, firmware, service manuals, or other copyrighted materials owned by vehicle manufacturers. Vehicle data displayed by the application is obtained through standard diagnostic interfaces and user-authorized connections.
OBD JScan
This diagnostic application provides in-depth access to vehicle modules, allowing users to read and clear trouble codes, view live sensor data, and access vehicle settings. It supports a wide range of Jeep, Chrysler, and Dodge models, offering powerful customization and diagnostic features.
- Read and clear diagnostic trouble codes
- Access live data from all vehicle sensors
- View vehicle settings and module information
- Supports ABS, transmission, and other modules
- Wide compatibility with Jeep, Chrysler, Dodge
- Enables features locked by dealers
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What is OBD JScan? OBD JScan is powerful Jeep & Chrysler & Dodge diagnostic application. JScan allows reading standard Diagnostic Trouble Codes (emission related), general Live Data and Adaptations and much more. Thats not all. JScan can access all modules avalable on your vehicle. ABS, Steering Column, Automatic Transimmsion, Radio, Sway Bar, Havac and many more. Some supported cars: Jeep Wrangler JK, Jeep Wrangler JL - additional hardware required to bypass security gateway* Jeep Wrangler JT - additional hardware required to bypass security gateway* Jeep Wrangler 4XE - additional hardware required to bypass security gateway* Jeep Grand Cherokee WK Jeep Grand Cherokee, WK2 11-13 Jeep Grand Cherokee WK2 14-21 - 18+ - additional hardware required to bypass security gateway* Jeep Commander XK Jeep Liberty/Cherokee KK, Jeep Compass, Jeep Patriot MK Dodge Avenger Dodge Grand Caravan RT, Dodge Journey, Dodge Caliber Dodge Durango 2004-2009 Dodge Durango 2011-2013 Dodge Durango 2014-2025* Dodge Ram Dodge Ram Promaster Dodge Nitro Dodge Magnum Dodge Challenger - 08-14 Dodge Challenger - 14+ Dodge Charger- 06-10 Dodge Charger- 11+ Dodge Avenger Chrysler Town&Country RT Chrysler 200 Chrysler 300C Chrysler 300 Chrysler Sebring Chrysler Aspen and more.. * WK2 2018+ = requires securit bypass cable * Dodge Durango 2018+ = requires securit bypass cable * Dodge Ram 2018+ = requires securit bypass cable * JL requires security bypass cable * JT requires security bypass cable * http://jscan.net/jl-jt-security-bypass/ What can I Do with JScan? JScan allows you to access, diagnostic trouble codes and Live Data in all modules. You can easily Read, Clear, Share vehicle Trouble Codes. View Live Data from all sensors in vehicle. View vehicle settings. Identify module, Vin, Part Number, Version and more. Recommended device: - OBD ELM 327 compatible device is required to make app work as expected. Recommended adapters: - iCar Pro 4.0 Bluetooth LE (Bluetooth) - Vlinker MC+ (Bluetooth) - for newer cars - OBD Link MX+ Bluetooth (Bluetooth) More info about supported and recommended OBD adapters: http://jscan.net/supported-and-not-supported-obd-adapters/ Facebook: https://www.facebook.com/obdjscan/ Website: http://jscan.net/
Screenshots
Verdict
The clearest difference is review sentiment: OBD JScan at 80% against FORScan Viewer's 32%. OBD JScan also leads on rating (4.7 vs 2.7) and update cadence (every 3 weeks vs every 3 months). FORScan Viewer's advantage is in-app purchases (none vs 7) and iOS requirement (9.0 vs 13.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OBD JScan sells 6 one-off in-app purchases. FORScan Viewer asks for nothing beyond the download.
OBD JScan holds the better App Store score, 4.7 against 2.7. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 105, so its average is the more settled of the two. Written reviews point the same way: 32% of FORScan Viewer's written reviews are positive against 80% of OBD JScan's.
FORScan Viewer ships an update every 3 months, OBD JScan every 3 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | FORScan Viewer | OBD JScan |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (105 ratings) | 4.7 (1.3K ratings) — better |
| Positive reviews | 31.6% of reviews | 79.6% of reviews — better |
| Number of ratings | 105 | 1.3K — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 80 MB | 403 MB |
| Age rating | 4+ | 12+ |
| Developer | Aleksei Savin | Piotr Bialic |
Customer experience
FORScan Viewer
OBD JScan
User reviews
FORScan Viewer
From 105 App Store ratingsWhat we love
- 🚀 Comprehensive real-time sensor monitoring and data recording
- 📊 Detailed error code viewing and analysis capabilities
- ⚙️ Extensive vehicle customization and performance settings
- ✅ Works excellently with quality OBD2 adapters
- 🔧 Superior diagnostics compared to competing apps
Room to improve
- 🐛 Frequent Bluetooth connectivity failures
- 🐛 WiFi connection issues and instability
- ❌ Incompatible with many popular OBD2 adapters
- 📱 iOS version severely limited compared to Windows
- ⚠️ Error codes fail to clear properly
OBD JScan
From 1.3K App Store ratingsWhat we love
- 🚀 Easy to use
- 🔧 Powerful customization options
- 👍 Excellent customer support
- 💡 Useful diagnostic and monitoring features
- 🔓 Enables features otherwise locked by dealer
Room to improve
- 🐛 Occasional connectivity issues
- 🔌 Requires additional hardware purchase
- ⚠️ Compatibility issues with newer vehicle models
- 🕰️ Slow performance in certain scenarios
Bugs and requests
FORScan Viewer
Reported bugs
8 issues- App fails to detect OBD2 adapters despite successful pairing
- Bluetooth connection drops and fails to reconnect
- WiFi adapter detection not working after updates
- Error code clearing functionality non-functional
- Vehicle identification fails on certain models
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- App crashes during connection attempts
- Permission settings not persisting correctly
- Incompatibility with specific adapter models (iCar Pro, Vgate, etc.)
Requested features
8 requests- Bluetooth Low Energy (BLE) adapter support
- Full feature parity between iOS and Windows versions
- Turkish language support
- Improved UI scaling for modern iPhones
- Expanded vehicle compatibility
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- Programming capabilities in iOS version
- Better adapter compatibility documentation
- Support for non-Ford vehicle manufacturers
OBD JScan
Reported bugs
2 issues- Inability to save/export diagnostic data
- Inconsistent behavior when changing vehicle settings
Requested features
4 requests- Expanded vehicle compatibility
- Improved stability and reliability
- Enhanced user interface and guidance
- Integration with other vehicle apps/services
In-app purchases
FORScan Viewer
No in-app purchases
OBD JScan
- + 1 garage license2 variants$9.99
- 1 VIN license$20.99
- Add 1 VIN Vehicle Slot$20.99
Show 3 moreShow fewer
- 3 VIN licenses$54.99
- 5 VIN Licenses$84.99
- 10 VIN Licenses$149.99
Questions
Is FORScan Viewer free?
Is OBD JScan free?
Which has better reviews, FORScan Viewer or OBD JScan?
Do FORScan Viewer or OBD JScan have ads?
Which is updated more often, FORScan Viewer or OBD JScan?
Other comparisons
