Professional OBD-II car diagnostics on your phone — no subscriptions, no in-app purchases, no ads. Just download and start diagnosing.
How Mini OBDII Compares
~$5
Free + $10 IAP
$100+ adapter required
~$30
Everything Included, Zero Cost
Read diagnostic trouble codes from your vehicle's ECU and clear them to turn off the Check Engine light — in seconds.
Monitor live vehicle data including RPM, speed, coolant temperature, fuel level, and 200+ OBD-II parameters.
Measure your vehicle's acceleration performance, 0-60 times, and other dynamic metrics with precision.
Record and analyze your driving trips — track distance, duration, fuel consumption, and driving patterns.
Connect via Bluetooth Low Energy for iOS-friendly, ultra-low power consumption wireless diagnostics.
Universal compatibility with SAE J1850, ISO 9141, ISO 14230 KWP, and ISO 15765 CAN protocols.
Available in English, Spanish, Russian, German, French, Japanese, Polish, Chinese, Italian, Portuguese, Arabic, and more.
No data collected, no information shared with third parties. Your vehicle data stays on your device.
Why is Mini OBDII Free?
Mini OBDII is developed by Shenzhen Chaoyue Technology, a leading OBD hardware manufacturer established in 2009. The app is designed as a companion for their Bluetooth and WiFi OBD-II adapters — making professional diagnostics accessible to every car owner.
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Years in OBD Industry
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R&D Engineers
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App Downloads
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OBD-II Protocols
Industry Certifications
Our vision: Make smart diagnostic devices accessible to every car owner.
FAQ
Common questions about Mini OBDII pricing and features
Download Mini OBDII now — available on iOS and Android. No registration required.