OBD2 Car Scanner Pro ELM327

Plug in a compatible Wi-Fi or Bluetooth LE OBD-II adapter and read live engine data, trouble codes, freeze frame and emissions readiness. No account. Works offline.

Turn a compatible OBD-II adapter into a clear, modern diagnostic dashboard.

It connects to Wi-Fi and Bluetooth LE ELM327-compatible adapters, detects what your vehicle actually supports, and shows the data it returns. No account, and the diagnostics work offline.

LIVE DATA • RPM, speed, coolant temperature, engine load, throttle position and module voltage • Over 20 more when your ECU exposes them: MAF, manifold and barometric pressure, timing advance, fuel trims, fuel level, intake and ambient temperature, runtime and distance • Cards or analog-inspired gauges, with monospaced digits that hold still • Parameters your vehicle does not support are labelled, not faked

READ AND UNDERSTAND CODES • Read stored and pending diagnostic trouble codes • Generic OBD-II code descriptions are carried in the app, with family and system group • Manufacturer-specific codes are marked as such, not given a guessed description • Clear supported emissions codes, with an explicit warning about what that does

AI ANALYSIS (PRO) • Runs on the session you just read: codes, readiness, freeze frame, live values • Possible causes with reasoning and stated confidence, cheapest and safest checks first • Shows the exact values before anything is sent, and never sends your VIN or location • Optional — the on-device insights always work without it, offline and free

DIAGNOSTIC DETAIL • Freeze frame: the conditions the ECU stored when a code was set • Emissions readiness: which monitors have completed their drive cycle • VIN reading where your vehicle supports Mode 09 • Battery and charging: voltage, a trend, and 30 days of daily min/avg/max

GARAGE • Save vehicles with make, model, year, fuel type, mileage and VIN • Track oil, filters, brakes, tires, spark plugs, battery and coolant • Optional service reminders, scheduled on your device

RECORD AND EXPORT • Record a live session: min, average and max for every parameter • Export sessions as CSV • Generate a Vehicle Health Report as a PDF and share it

PERFORMANCE TESTS • 0–60 mph, 0–100 km/h, 0–200 km/h, 1/8 mile, 1/4 mile and 100–0 braking • Measured from GPS ground speed, with each run's GPS accuracy shown • Personal bests and history per test

BUILT TO BE HONEST • No account, no ads, no cross-app tracking • Your vehicles, codes, sessions and reports stay on your device • Core diagnostics work with no internet connection

WHAT YOU NEED A compatible Wi-Fi or Bluetooth LE ELM327-style OBD-II adapter, and a vehicle with an OBD-II port. Compatibility depends on the adapter, vehicle, ECU and the PIDs it supports. Classic Bluetooth (SPP-only) adapters and dongles needing their maker's own app are not supported.

FREE AND PRO Free includes adapter connection, an essential live dashboard, code reading, a basic readiness overview, one saved vehicle, oil-service tracking, one recording and one PDF report.

Pro adds AI analysis, the full parameter dashboard, gauges, live charts and themes, unlimited recordings with CSV export, code clearing, freeze-frame and readiness detail, VIN saving, unlimited reports and vehicles, service reminders, 30-day voltage history and the full performance suite.

Pro is an auto-renewing subscription, weekly or yearly. Payment is charged to your Apple Account at confirmation of purchase and renews automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel in Settings on your Apple Account.

Terms of Use (EULA): https://emirarikaan.github.io/obd2-scanner-terms.html Privacy Policy: https://emirarikaan.github.io/obd2-scanner-privacy.html

IMPORTANT This app provides diagnostic information. It is not a mechanic, an inspection authority or a safety system. A trouble code identifies where a fault was detected — it does not confirm which component failed, and neither does the AI analysis. Consult a qualified service professional before carrying out repairs. Do not interact with the app while driving.