UstaScan vs Check Engine
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.
Check Engine
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Your car is talking. Check Engine listens. Just tap the mic and describe what your car is doing. Check Engine's AI figures it out and tells you in plain English. No mechanic lingo. No guessing. Just real answers. Tap the mic, describe the problem out loud, and Check Engine listens, thinks, and talks back like having a knowledgeable friend in your passenger seat 24/7. Built by Gavs Customs with real shop experience, not just code. Your voice is processed securely-we never sell your data. SUBSCRIPTIONS Check Engine Pro - $9.99 per month, auto-renewing. Unlimited diagnoses, all 5 AI voices, up to 3 vehicles, real repair-manual data, and recall alerts. Check Engine Shop - $29.99 per month, auto-renewing. Everything in Pro, plus tools and parts lists with torque specs and safety steps. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple Account settings. Privacy Policy: https://gavscustoms.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: UstaScan at none against Check Engine's 2. UstaScan also leads on update cadence (every 2 days vs every 2 weeks) and device support (3 vs 1). On price and ads 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. Check Engine sells 2 in-app purchases, starting at $9.99 per month. UstaScan asks for nothing beyond the download.
UstaScan ships an update every 2 days, Check Engine every 2 weeks. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.
| Parameter | UstaScan | Check Engine |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 35 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Mustafa Yousif | REIDT GAVIN WILDE |
In-app purchases
UstaScan
No in-app purchases
Check Engine
- Pro$9.991 Month
- Shop$29.991 Month
