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Best Obd2 Interface Apps

246+ iOS apps curated and reviewed

3.9 avg rating
20 free apps
Updated September 2026

From beginner-friendly picks to power-user tools, our obd2 interface list covers 246+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Obd2 Interface Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Car Scanner ELM OBD2Car Scanner ELM OBD2Free4.8★ (32K)YesYesSep 2026
2CanDash: OBD2 Scanner ELM327CanDash: OBD2 Scanner ELM327Free3.5★ (2)NoYesSep 2026
3OBD2 ExpertOBD2 ExpertFree4.1★ (725)NoYesSep 2026
4ELM327 WiFi DiagnosticELM327 WiFi DiagnosticFree1.0★ (1)NoNoSep 2026
5OBD2 Car Scanner - EOBD FacileOBD2 Car Scanner - EOBD FacileFree4.6★ (5K)NoYesSep 2026
6I'm Hero OBD2 ScannerI'm Hero OBD2 ScannerFree—NoNoJul 2026
7BimmerDash: OBD2 GaugeBimmerDash: OBD2 GaugeFree—YesYesSep 2026
8inCarDoc OBD2 ELM327 ScannerinCarDoc OBD2 ELM327 ScannerFree3.1★ (155)YesYesSep 2026

Top Picks for Obd2 Interface

Car Scanner ELM OBD2#1

Car Scanner ELM OBD2 by Stanislav Svistunov

The best OBD2 diagnostic tool!
Editor's Choice
🔧 Utilities
4.8😊(32K ratings)
FreeAdsIn-App Purchases
Car Scanner ELM OBD2 screenshot 1
Car Scanner ELM OBD2 screenshot 2
Car Scanner ELM OBD2 screenshot 3
Car Scanner ELM OBD2 screenshot 4
Car Scanner ELM OBD2 screenshot 5
Car Scanner ELM OBD2 screenshot 6

Monitor your car's performance, diagnose engine issues, and view sensor data in real-time. Customize your dashboard with gauges and charts, and reset fault codes. Supports a wide range of vehicles and offers advanced features for specific car brands.

What We Love

  • 🚀 Works great with cheap OBD2 adapters
  • 👍 Highly customizable dashboard
  • 👍 Comprehensive sensor data
  • 👍 Helpful error code lookup
  • 👍 Frequent updates
  • 👍 Affordable pro version
  • 👍 Supports many vehicle makes/models

Room to Improve

  • 🐛 Occasional connection issues
  • 🐛 Incorrect sensor readings for some vehicles
  • 🐛 Crashes or freezes on some devices
  • 🔋 Drains battery when left running
OBD2 Expert#3

OBD2 Expert by Michael Lauer

ScanTool, Simulator & Bridge
Worth Considering
🔧 Utilities
4.1😞(725 ratings)
FreeIn-App Purchases
OBD2 Expert screenshot 1
OBD2 Expert screenshot 2
OBD2 Expert screenshot 3
OBD2 Expert screenshot 4
OBD2 Expert screenshot 5

Diagnose and monitor your vehicle's health by connecting an OBD2 adapter. View sensor data, read and reset trouble codes, and analyze diagnostic information. Developers can use it as a hardware simulator or protocol bridge.

What We Love

  • 👍 Works well
  • 🚀 Fast and responsive
  • 💡 Useful features

Room to Improve

  • 🐛 Crashes frequently
  • 🔒 Requires payment to unlock core functionality
  • ⚠️ Doesn't detect/connect to OBD2 adapter
  • 🤖 Lacks instructions/documentation
  • 💸 Overpriced for limited functionality

More Obd2 Interface apps to explore

FAQ about Obd2 Interface

What are the best obd2 interface apps for iPhone?
Car Scanner ELM OBD2 tops our obd2 interface apps ranking as of September 2026, with a 4.8-star average from 32K App Store ratings, and it's free to download.
Yes — 20 of the top obd2 interface apps we rank are free to download, including Car Scanner ELM OBD2 and CanDash: OBD2 Scanner ELM327.
Car Scanner ELM OBD2 shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 246+ obd2 interface apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app acts as a vehicle diagnostic tool, performance monitor, and trip computer. It connects to your car's OBD2 engine management system via a Wi-Fi or Bluetooth adapter to display real-time sensor data, read and reset fault codes, and provide detailed vehicle information.
Key features include real-time sensor data display, the ability to read and reset DTC fault codes with a large database of descriptions, customizable dashboards with gauges and charts, extended PID support for hidden information, Mode 06 test results, emission test readiness checks, and accurate acceleration measurements.