FORScan Viewer vs Auto101 Pro
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.
Auto101 Pro
This professional diagnostic tool provides in-depth analysis and control for GM, Ford, and Chrysler vehicles. It allows reading and clearing diagnostic trouble codes, performing relearn procedures, and managing vehicle security systems.
- Read/Clear DTCs
- Perform relearn procedures
- Manage vehicle security
- Read VIN and calibration data
- Support for GM, Ford, Chrysler
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Auto101 Pro is a professional diagnostic tool designed for GM vehicles (1996+), with support for Ford and Chrysler vehicles. FEATURES: GM Tool: • Get Info: Read VIN, SDM part number, and backup data from BCM • Setup SDM: Write SDM part number to clear B1001 code • Read/Clear DTCs: Diagnostic trouble codes for ECM/PCM, BCM, and SDM • Crank Relearn: Perform crankshaft position relearn to clear P0315 • BPPS Relearn: Brake Pedal Position Sensor relearn procedure • IMMO Relearn: Immobilizer relearn to synchronize keys • VATS Relink: Vehicle Anti-Theft System relearn Ford Tool: • Get Info: VIN, Calibration ID, part numbers • Stored Keys: Keys programmed count (PATS 1996–2010) • Link PATS: Sync PCM and Cluster security (module replacement) • Clear Keys: Erase all keys; 2 new keys required to restart • Read/Clear DTCs: Standard OBD and Ford-specific codes Chrysler Tool: • Get Info: VIN and Calibration ID • Read/Clear DTCs: Standard OBD and PCM/TIPM codes • ETC Reset: Electronic Throttle Control (follow pedal prompts) REQUIREMENTS: • Auto101 OBD2 Bluetooth adapter (Bluetooth 4.0 or higher) • WiFi adapters not currently supported • Most adapters under $15 don't work! COMPATIBLE VEHICLES: GM Global A platform (2010+). Ford and Chrysler: see in-app tool for supported models. For complete vehicle list, see in-app Help section. IMPORTANT NOTES: • For Setup SDM on GMLAN systems (2006+), you need backup data from old BCM OR an adapter that supports GMLAN (vLinker MC+, OBDLink MX+) • Some GM vehicles began using GMLAN as early as 2004 SUPPORT: Contact@auto101.net
Screenshots
Verdict
The clearest difference is review sentiment: Auto101 Pro at 100% against FORScan Viewer's 32%. Auto101 Pro also leads on rating (5.0 vs 2.7) and update cadence (every 2 weeks vs every 3 months). FORScan Viewer's advantage is ratings volume (105 vs 5) and iOS requirement (9.0 vs 16.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Auto101 Pro holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: FORScan Viewer has 105 ratings behind it against 5, 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 100% of Auto101 Pro's.
FORScan Viewer ships an update every 3 months, Auto101 Pro every 2 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | FORScan Viewer | Auto101 Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (105 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 31.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 105 — better | 5 |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 80 MB | 133 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksei Savin | AUTO101 LLC |
Customer experience
FORScan Viewer
Auto101 Pro
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
Auto101 Pro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
FORScan Viewer
No in-app purchases
Auto101 Pro
No in-app purchases
Questions
Is FORScan Viewer free?
Is Auto101 Pro free?
Which has better reviews, FORScan Viewer or Auto101 Pro?
Do FORScan Viewer or Auto101 Pro have ads?
Which is updated more often, FORScan Viewer or Auto101 Pro?
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