UstaScan vs MissFire
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UstaScan
This app uses AI to diagnose your car's issues by connecting to its OBD2 port via Bluetooth. It provides real-time data, reads and clears fault codes, and offers performance testing. Monitor your vehicle's health with live charts and detailed sensor information.
- AI-powered car diagnostics
- Real-time data monitoring
- Read and clear fault codes
- Performance testing (acceleration, braking)
- Live charts and sensor data
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UstaScan is a powerful OBD2 car diagnostic app that connects to your vehicle via Bluetooth. Monitor real-time data including speed, RPM, engine temperature, and battery voltage. Read and clear fault codes (DTCs), run AI-powered diagnostics, and test your car's performance with acceleration and braking tests. Stay on top of your vehicle's health with live charts and detailed sensor data.
MissFire
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MissFire is an Car/Vehicle OBD Diagnostic Tool that you can use to diagnose your car health. It contains advanced misfire utilities, custom engine parameter live tracking functions, DTC diagnostic trouble code scanner & library, diagnose with AI function, ABS tool, airbag tool, gearbox tool, fuel economy tracker, battery & charging health tool, dyno estimator, speedometer calibration, acceleration timing, tire size calculator and lots of more. All for FREE, there are no paid options/restrictions!
Screenshots
Verdict
The clearest difference is update cadence: UstaScan at every 2 days against MissFire's weekly. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
UstaScan ships an update every 2 days, MissFire weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | UstaScan | MissFire |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 35 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Mustafa Yousif | Tommi Kari |
In-app purchases
UstaScan
No in-app purchases
MissFire
No in-app purchases
