OBD2 Car ScannerScan your car.
See every fault.
Plug a cheap OBD2 adapter into your car and your phone shows what's wrong, in plain words. Read and clear fault codes, watch live data and check safety recalls.
Everything a mechanic's scanner does,
in your pocket
Know what's wrong before you go to the garage, and don't pay for a diagnosis you can do yourself.
One-tap health scan
Reads every fault code, the check engine light and readiness monitors, then gives your car a health score.
Fault codes explained
Thousands of codes with plain-word meaning, likely causes and what to do next. Clear them when fixed.
Live data
RPM, speed, coolant temperature, engine load, fuel trims and more, updating in real time.
Car assistant
Ask “What does P0420 mean?” or “Why is my car shaking?” and get a clear answer, even offline.
Safety recalls
Check official recall records for your car from 60+ brands.
Handy tools
VIN decoder, fuel cost calculator, warning light guide, OBD port finder and nearby help.
Three steps. About a minute.
Plug in the adapter
Find the OBD2 port under the dashboard (where is mine?) and plug in any ELM327 adapter.
Connect your phone
Turn the ignition on, open the app and connect over Bluetooth, BLE or Wi-Fi.
Tap scan
See fault codes, what they mean and how to fix them, plus a health score for your car.
Made to be simple
Questions drivers ask
What do I need to use the app?
An Android phone and an ELM327 OBD2 adapter. Adapters are small plugs that cost around $10–30 online. They come in Bluetooth, Bluetooth LE and Wi-Fi versions, and the app works with all three.
Will it work with my car?
Almost certainly. Every petrol car sold in the USA since 1996, in the EU since 2001 and diesel cars in the EU since 2004 have an OBD2 port. Most cars sold in other countries since the mid-2000s have one too.
Is the app free?
Yes. Scanning, reading fault codes and live data are free. Premium removes ads and unlocks extras like the car assistant, safety recalls and all themes.
Can I turn off the check engine light?
Yes, the app can clear stored codes, which turns the light off. If the fault is still there, the car will turn the light back on, so fix the cause first.
Does it work without internet?
Scanning, fault codes, live data and the car assistant all work offline. Only recalls and VIN lookups need a connection.
Is there an iPhone version?
Not yet. The app is available for Android on Google Play.
Stop guessing. Start scanning.
Free on Google Play. Works with any ELM327 OBD2 adapter.
Get it free onGoogle Play