OpenOBD

Turn your iPhone into a live car dashboard. Connect an ELM327 for real-time engine data, GPS trip logging, and fault-code diagnostics — no account, no subscription.

OpenOBD turns your iPhone into a real-time car dashboard. Connect any ELM327 OBD2 adapter (Bluetooth or Wi-Fi) and see what your car is really doing — live.

LIVE ENGINE DATA • Speed, RPM, coolant temperature, intake, throttle, engine load, battery voltage and more • Clean, fast gauges that update in real time • Instant and average fuel consumption

CARPLAY • View your live gauges right on your car's built-in screen • Large, glanceable dials designed for driving — eyes stay on the road • Keeps showing live data even when your iPhone is locked

TRIP LOGGING • Automatically record your drives with the GPS route on a map • Keeps recording in the background, even with the screen locked • Review distance, duration, speed and fuel for every trip

DIAGNOSTICS • Read and clear fault codes (DTCs) with plain-language explanations • Check-engine (MIL) status and stored trouble codes • Vehicle info: VIN, fuel type, supported sensors

BUILT FOR DRIVERS • Beautiful dark interface designed for the car • Works with affordable ELM327 adapters — no subscription, no account

TRY IT WITHOUT HARDWARE • Tap Connect, then Demo Mode, to explore every feature with simulated live data

OpenOBD is not affiliated with any car manufacturer. An OBD2 adapter (sold separately) is required to read data from your vehicle. Most petrol cars built after 2001 and diesels after 2004 are supported.