FORScan Viewer vs CompressMate
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.
CompressMate
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CompressMate intelligently compresses your PDFs to any file size you need. Just set a target in megabytes and let the app find the optimal balance between quality and size. FEATURES - Target File Size: Set your desired output size in MB with a simple slider. The app does the rest. - Smart Compression: Six quality tiers automatically adjust resolution and JPEG compression to hit your target while maximizing readability. - Page Management: Reorder pages with intuitive drag-and-drop thumbnails. Delete pages you don’t need before export. - Live Preview: See the compressed result immediately. Compare original, target, and output sizes, plus your savings percentage. - Easy Import & Export: Open PDFs from Files, share sheets, or other apps. Compress and save or share the result in just a few taps. - Privacy First: All processing happens locally on your device. No accounts, no uploads, no tracking. Your documents stay yours. LIMITS - Maximum file size: 500 MB - Maximum pages: 2,000 - PDF can be flattened to an image to reduce size. Text might become unselectable. Built for iPhone, iPad and Mac. With your purchase, you support subscription-free software!
Screenshots
Verdict
The clearest difference is price: FORScan Viewer at Free against CompressMate's $2.59. FORScan Viewer also leads on iOS requirement (9.0 vs 18.0). On ads, in-app purchases 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
FORScan Viewer is free to download; CompressMate costs $2.59 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | FORScan Viewer | CompressMate |
|---|---|---|
| Price | Free — better | $2.59 |
| Rating | 2.7 (105 ratings) — better | — |
| Positive reviews | 31.6% of reviews | — |
| Number of ratings | 105 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 9.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 80 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksei Savin | Leon Fellner |
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
CompressMate
Not enough reviews yet to summarise bugs or requests.
In-app purchases
FORScan Viewer
No in-app purchases
CompressMate
No in-app purchases
Questions
Is FORScan Viewer free?
Is CompressMate free?
Do FORScan Viewer or CompressMate have ads?
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