FORScan Viewer vs DrillOut Calcs
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
Read full descriptionHide full description
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.
DrillOut Calcs
This app offers essential calculations for oilfield professionals performing post-frac plug drill-outs. It provides quick and accurate tools to verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time, designed for simplicity and speed.
- Post-frac plug drill-out calculations
- Flow balance verification
- Annular velocity calculation
- Sweep efficiency assessment
- Surface return timing
- Real-time data verification
Read full descriptionHide full description
Drill-Out Calculator provides quick, accurate tools for oilfield professionals performing post-frac plug drill-outs. Built for simplicity and speed, it helps verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time.
Screenshots
Verdict
The clearest difference is review sentiment: DrillOut Calcs at 100% against FORScan Viewer's 32%. DrillOut Calcs also leads on rating (5.0 vs 2.7) and update cadence (every 3 weeks vs every 3 months). FORScan Viewer's advantage is ratings volume (105 vs 2) and iOS requirement (9.0 vs 18.5). 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.
DrillOut Calcs 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 2, 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 DrillOut Calcs's.
FORScan Viewer ships an update every 3 months, DrillOut Calcs every 3 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.
| Parameter | FORScan Viewer | DrillOut Calcs |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (105 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 31.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 105 — better | 2 |
| Update frequency | Every 3 months | Every 3 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 | 18.5 |
| Further details — not scored | ||
| Size | 80 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksei Savin | Cody Martin |
Customer experience
FORScan Viewer
DrillOut Calcs
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
Show 3 moreShow fewer
- 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
Show 3 moreShow fewer
- Programming capabilities in iOS version
- Better adapter compatibility documentation
- Support for non-Ford vehicle manufacturers
DrillOut Calcs
Not enough reviews yet to summarise bugs or requests.
In-app purchases
FORScan Viewer
No in-app purchases
DrillOut Calcs
No in-app purchases
Questions
Is FORScan Viewer free?
Is DrillOut Calcs free?
Which has better reviews, FORScan Viewer or DrillOut Calcs?
Do FORScan Viewer or DrillOut Calcs have ads?
Which is updated more often, FORScan Viewer or DrillOut Calcs?
Other comparisons
