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Best Obdii Car Diagnostics Apps

250+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated August 2026

Every iPhone needs a few good obdii car diagnostics apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Obdii Car Diagnostics Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Car Scanner ELM OBD2Car Scanner ELM OBD2Free4.8★ (32K)YesYesAug 2026
2OBD2 Car Scanner - EOBD FacileOBD2 Car Scanner - EOBD FacileFree4.6★ (5K)NoYesAug 2026
3Mini OBDIIMini OBDIIFree3.4★ (5)NoNoMay 2026
4OBD2 Scanner | OBD Auto DoctorOBD2 Scanner | OBD Auto DoctorFree4.4★ (6.1K)NoYesAug 2026
5OBD2 Car ScannerOBD2 Car ScannerFree—YesNoJun 2026
6Wiseday - OBD2 Car ScannerWiseday - OBD2 Car ScannerFree—NoNoJul 2026
7Torque Car - Pro OBD2 ScannerTorque Car - Pro OBD2 ScannerFree—NoYesMay 2026
8Car Repair AutoDiagCar Repair AutoDiagFree—YesNoMay 2026

Top Picks for Obdii Car Diagnostics

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

Room to Improve

  • 🐛 Occasional connection issues
  • 🐛 Incorrect sensor readings for some vehicles
  • 🐛 Crashes or freezes on some devices
OBD2 Car Scanner - EOBD Facile#2

OBD2 Car Scanner - EOBD Facile by OUTILS OBD FACILE SARL

Torque & ELM327 OBD Diagnostic
Strong Contender
🔧 Utilities
4.6😐(5K ratings)
FreeIn-App Purchases
OBD2 Car Scanner - EOBD Facile screenshot 1
OBD2 Car Scanner - EOBD Facile screenshot 2
OBD2 Car Scanner - EOBD Facile screenshot 3
OBD2 Car Scanner - EOBD Facile screenshot 4
OBD2 Car Scanner - EOBD Facile screenshot 5
OBD2 Car Scanner - EOBD Facile screenshot 6

Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.

What We Love

  • 👍 Helpful for diagnosing issues
  • 🚀 Easy to use and connect
  • 💡 Provides useful vehicle data
  • 🔍 Able to read and clear error codes

Room to Improve

  • 💰 Expensive for full functionality
  • 🔒 Requires paid upgrade to access key features
  • 🐛 Connectivity issues and app crashes

More Obdii Car Diagnostics apps to explore

4
OBD2 Scanner | OBD Auto Doctor
OBD2 Scanner | OBD Auto Doctor
OBD2 Scanner | OBD Auto Doctor
Car Diagnostics & Check Engine
Free

Diagnose your car's engine light issues and monitor real-time performance data. This app allows you to read and clear diagnostic trouble codes, track fuel consumption, and view sensor data. It's a comprehensive tool for understanding your vehicle's health.

Read and clear OBD2 diagnostic trouble codes (DTC)Reset Check Engine LightMonitor real-time vehicle data and sensor readings
🔧 Utilities
(6.1K)
free with in-app purchases
5
OBD2 Car Scanner
OBD2 Car Scanner
OBD2 Car Scanner
OBD2 Car Scanner & codes
Free
🔧 Utilities
(0)
6
Wiseday - OBD2 Car Scanner
Wiseday - OBD2 Car Scanner
Wiseday - OBD2 Car Scanner
by 广州高新兴网联科技有限公司
Free
🔧 Utilities
(0)
7
Torque Car - Pro OBD2 Scanner
Torque Car - Pro OBD2 Scanner
Torque Car - Pro OBD2 Scanner
Car diagnostics & parking log
Free
🌟 Lifestyle
(0)
8
Car Repair AutoDiag
Car Repair AutoDiag
Car Repair AutoDiag
Smart car breakdown AI
Free
🔧 Utilities
(0)
9
Ai Car Fix
Ai Car Fix
Ai Car Fix
AI-Powered Car Diagnostics
Free
🔧 Utilities
(0)
10
OBD2UDS - Car Diagnostic Pro
OBD2UDS - Car Diagnostic Pro
OBD2UDS - Car Diagnostic Pro
UDS Engine Scan & Live Data
Free
🔧 Utilities
(0)
11
AutoMind
AutoMind
AutoMind
Advanced Vehicle Diagnostic
Free

This AI-powered tool connects to your car's OBD2 port via Bluetooth to provide instant, easy-to-understand diagnostic reports and real-time performance data. It helps you understand your vehicle's health, optimize driving, and make informed maintenance decisions.

AI-powered fault code diagnosticsReal-time vehicle data monitoringPerformance and efficiency insights
✈️ Travel
(0)
free
12
OBD2 Car Scanner ELM327: Cavox
OBD2 Car Scanner ELM327: Cavox
OBD2 Car Scanner ELM327: Cavox
Check engine light? AI verdict
Free

Decode your car's check engine light with AI. Get plain-language explanations of trouble codes, likely causes, and urgency. Monitor live sensor data and track your car's history.

Plain-language verdict for trouble codesAI explanations of fault codesLive sensor monitoring (RPM, temp, etc.)
🔧 Utilities
(1)
freemium
13
OBDLink
OBDLink
OBDLink
by OBD Solutions LLC
Free

Transform your phone into a powerful car diagnostic tool. Read and clear trouble codes, monitor real-time engine data, and track fuel economy. Generate detailed reports for easy sharing and analysis.

Read and clear diagnostic trouble codesDisplay real-time vehicle dataCustomizable dashboards
✈️ Travel
(12K)
free with in-app purchases
14
OBD Live: Car Scanner & OBD2
OBD Live: Car Scanner & OBD2
OBD Live: Car Scanner & OBD2
Live OBD Sensors & Diagnostics
Free
🔧 Utilities
(0)
15
UstaScan
UstaScan
UstaScan
تشخيص سيارتك بالذكاء الاصطناعي
Free
🔧 Utilities
(0)
16
AutoDiag AI Mechanic
AutoDiag AI Mechanic
AutoDiag AI Mechanic
AI-powered vehicle diagnostics
Free
📊 Productivity
(0)
17
Troodon OBD
Troodon OBD
Troodon OBD
by DevCom spol. s r.o.
Free
🔧 Utilities
(0)
18
Cardi - AI OBD2 Car Scanner
Cardi - AI OBD2 Car Scanner
Cardi - AI OBD2 Car Scanner
Car Diagnostic Assistant
Free
🔧 Utilities
(0)
19
DriveSense: OBD2 Car Scanner
DriveSense: OBD2 Car Scanner
DriveSense: OBD2 Car Scanner
Live engine & sensor data
Free
🔧 Utilities
(0)
20
UJS OBD Pro
UJS OBD Pro
UJS OBD Pro
OBD
Free
🔧 Utilities
(0)

FAQ about Obdii Car Diagnostics

What are the best obdii car diagnostics apps for iPhone?
Car Scanner ELM OBD2 tops our obdii car diagnostics apps ranking as of August 2026, with a 4.8-star average from 32K App Store ratings, and it's free to download.
Yes — 20 of the top obdii car diagnostics apps we rank are free to download, including Car Scanner ELM OBD2 and OBD2 Car Scanner - EOBD Facile.
Car Scanner ELM OBD2 shows ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 250+ obdii car diagnostics apps on the iOS App Store as of August 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.