OBD2 Car Scanner Pro ELM327
Check Engine Light AI Doctor
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Read and clear engine codes, watch live sensor data and track fuel economy with any ELM327 adapter. Now with faster, more reliable Bluetooth and Wi-Fi connections.
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.
Ratings & Reviews
Some improvements and bug fixes.
The developer, Emir ARIKAN, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
- User Content
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Emir ARIKAN
- Size
- 29.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
English and 24 more
- English, Arabic, Danish, Dutch, Filipino, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Yearly $39.99
- Pro Yearly – Half Price $19.99
- Pro Weekly $4.99
- Copyright
- © 2026 Emir Arıkan