Free During Early Access
Plug in a Bluetooth ELM327 adapter, read and clear engine error codes, monitor live metrics like RPM, temperature, and voltage — and decide for yourself if a shop visit is really needed.
Clean, intuitive interface designed for quick glances while troubleshooting.
Professional-grade OBD-II diagnostics without the professional price tag.
Monitor RPM, speed, coolant temperature, intake air temperature, throttle position, engine load, and battery voltage in real time.
Track how metrics change over time with interactive charts. Spot anomalies before they become expensive repairs.
Read and clear DTCs from your vehicle's ECU. Understand what that check-engine light really means.
Works with any standard ELM327 Bluetooth adapter. Pair once, connect instantly every time you drive.
Your vehicle data stays on your device. No cloud uploads, no tracking, no VIN or GPS collection.
All features are available at no cost during early access. No ads, no paywalls — just diagnostics.
We believe your vehicle data is personal. Posh OBDII Link is designed with privacy at its core.
We're actively developing new capabilities to make diagnostics even more powerful.
Full-featured OBD-II diagnostics for Android devices with Bluetooth ELM327 support.
Bringing the same powerful diagnostics experience to iPhone and iPad.
Car model-specific parameters beyond standard OBD-II — deeper insights for your specific vehicle.
Save and export collected metrics to your device for analysis and record-keeping.