OBDScan — OBD2 Scanner

OBDScan turns your iPhone into an OBD-II scan tool. Connect an ELM327-compatible adapter over Bluetooth LE or Wi-Fi and read what your car's engine computer reports — in real time, entirely on your device.

No adapter on hand? A built-in Demo mode runs the whole app with a synthetic vehicle, so you can explore every screen before you buy any hardware.

WHAT YOU CAN DO

• Live data — Watch standard OBD-II sensors update live: engine RPM, vehicle speed, coolant and intake temperatures, throttle, voltages and more. Values are shown per ECU. Pick the channels you care about and the reading rate.

• Dashboard — Build a dashboard of gauges and sparklines for the readings you watch most, with optional high/low threshold alarms.

• Diagnostics — Read stored, pending and permanent trouble codes (Modes 03 / 07 / 0A) and clear codes (Mode 04) with an explicit confirmation. See readiness monitors, Mode 06 test results and Mode 09 vehicle information (VIN). Codes are classified by SAE structure; this app does not ship a manufacturer fault-description database.

• Record & export — Record a session and export it as CSV or raw data. Import and share recordings. Recordings stay in the app's Documents folder and are visible in the Files app.

• Trips — Optionally record a trip's route on your device. The route never leaves your iPhone.

• Read-only terminal & module identification — Send a safe, read-only set of OBD commands and read ECU module information. State-changing services are refused.

• Backup — Export and restore your full configuration (garage, data profiles, dashboards and preferences).

BUILT FOR EVERYONE

• 34 languages, including full right-to-left layouts.
• Dark and Light themes.
• VoiceOver and Dynamic Type throughout.

PRIVACY

Your OBD data, recordings, trips and logs stay on your device. OBDScan does not collect your personal data and does not track you across apps or websites. Bluetooth is used only to talk to an adapter you choose; location is used only if you turn on trip route recording.

REQUIREMENTS

A separate ELM327-compatible OBD-II adapter (Bluetooth LE or Wi-Fi) is required to connect to a real vehicle. OBDScan is an independent app and is not affiliated with any vehicle manufacturer or adapter maker.