Turn a budget ELM327 into a real diagnostic tool
Connect any ELM327 adapter, read fault codes and live engine data, check a used car before you buy it — and let AI explain what is going on and what to do next.
Everything a driver needs, nothing a mechanic sells you
Fault codes with meaning
Stored, pending and permanent codes with a description, the freeze frame and readiness monitors.
Live data and recording
Engine speed, temperatures, fuel trims and more. Record a drive with markers and export it as CSV.
Pre-purchase check
VIN check, recently cleared codes and incomplete monitors — spot what a seller may be hiding.
AI explanation
The AI reads codes, live values and your notes and explains the likely cause and next steps.
Works offline
Diagnostics, recordings and reports stay on your phone. The internet is needed only for AI.
Bluetooth LE and Wi‑Fi
Works with common ELM327 clones and tells you honestly what your adapter can and cannot do.
How it works
Plug in the adapter
Into the OBD-II port under the dashboard, then turn the ignition on.
Connect in the app
Over Bluetooth or Wi‑Fi — the app finds the adapter and the car.
Read and understand
Codes, live data and a report you can save, share or ask the AI about.
Basic diagnostics are free
Reading and decoding fault codes, live data and reports cost nothing. Advanced features open for a short video or a credit; the subscription opens everything without ads.
Prices on this website — without the app store fee.Free
- Fault codes with descriptions and freeze frame
- Readiness and live data
- Reports in PDF
- Pre-purchase check, recording and monitor tests — for a short video
Subscription
- 100 credits every month
- All features without ads · AI analysis without internet on supported phones · cancel any time
Questions
Which adapter do I need?
Any ELM327-compatible OBD-II adapter with Bluetooth LE or Wi‑Fi. Cheap clones work too; the app checks what yours supports.
Will it work with my car?
Petrol cars sold in the EU since 2001, diesels since 2004 and US cars since 1996 have the OBD-II port the app reads.
What happens to my data?
It stays on your phone. Only an AI request sends the codes and readings, and nothing is sold. See the privacy policy.
Do I have to watch ads?
Only if you want an advanced feature without a subscription: one short video opens it for several connections. Ads appear only as videos you choose to watch.
How do I cancel the subscription?
Where you bought it: in Google Play, in the App Store, or on this website in your account.
More apps for drivers
Dash Lights
Point the camera at the dashboard and see what each warning light means and what to do. Works offline.
VIN Scanner
Scan a VIN with the camera and check a used car: model and engines, US safety recalls, Dutch odometer records and official checks.