Live engine data
RPM, speed, coolant, fuel trims, O2 and more on animated gauges — only the parameters your car actually supports.
OBD2 · ELM327 · Bluetooth & Wi-Fi
Your check-engine light,
in plain English.
I'm Hero OBD2 Scanner reads your car over a cheap ELM327 adapter and turns cryptic trouble codes into something you can actually act on — live engine data, faults explained, and emissions readiness, on your iPhone.
CODE
P0301
Cylinder 1 misfire detected
Free tool
Type a code. Understand it.
Enter any OBD-II code your car threw and get an AI explanation in seconds. The same engine powers the app.
Faults, explained
Read and clear stored, pending and permanent codes — each with a description and freeze-frame snapshot from the moment it set.
Inspection readiness
See the check-engine (MIL) status and which emissions monitors are ready — handy before a test or buying a used car.
Get it on your iPhone
iOS 17+. Works with standard ELM327 Bluetooth LE and Wi-Fi adapters. Currently in TestFlight beta.