Best Iobd2 Apps

41+ iOS apps curated and reviewed

3.6 avg rating
20 free apps
Updated May 2026

Looking for free iobd2 apps? 20 of our 41+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Iobd2

2.8😞(84 ratings)
Free
iOBD2 screenshot 1
iOBD2 screenshot 2
iOBD2 screenshot 3
iOBD2 screenshot 4
iOBD2 screenshot 5

Transform your iPhone or iPad into a powerful vehicle diagnostic tool. Read engine data, check for issues, and monitor real-time performance metrics like fuel consumption and acceleration. Customize your dashboard to display only the information you care about.

What We Love

  • 🚀 Works great
  • 👍 Wonderful app
  • 🚀 Excellent tool
  • 👍 Good product

Room to Improve

  • 🐛 Doesn't work
  • 🐛 Crashes frequently
  • 🐛 Connection issues
Car Scanner ELM OBD2#2

Car Scanner ELM OBD2 by Stanislav Svistunov

The best OBD2 diagnostic tool!
Strong Contender
🔧 Utilities
4.8😊(31K 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
FIXD OBD2 Scanner#3

FIXD OBD2 Scanner by FIXD Automotive Inc

Clear Your Check Engine Light
Worth Considering
🔧 Utilities
4.6😐(26K ratings)
FreeAdsIn-App Purchases
#48in Utilities
FIXD OBD2 Scanner screenshot 1
FIXD OBD2 Scanner screenshot 2
FIXD OBD2 Scanner screenshot 3
FIXD OBD2 Scanner screenshot 4
FIXD OBD2 Scanner screenshot 5
FIXD OBD2 Scanner screenshot 6

This app translates your car's diagnostic trouble codes into plain language, helping you understand potential issues and their severity. It provides maintenance reminders and offers advanced features like issue forecasting and emissions pre-checks with a premium subscription.

What We Love

  • 👍 Easy to use
  • 🚀 Quickly identifies problems
  • 💰 Saves money on mechanics
  • 🔍 Provides detailed diagnostic information

Room to Improve

  • 🔒 Requires subscription for full functionality
  • 💰 Expensive premium subscription
  • 🤖 Inconsistent performance across vehicles

More Iobd2 apps to explore

4
BlueDriver OBD2 Scan Tool
BlueDriver OBD2 Scan Tool
BlueDriver OBD2 Scan Tool
Fear No Fix™
Free

This app turns your smartphone into a powerful OBD2 scan tool. It allows you to read and clear trouble codes, view live data, and generate detailed repair reports for your vehicle. Understand your car's issues and make informed repair decisions.

Read and clear trouble codes (Check Engine, ABS, etc.)Generate professional-grade Repair ReportsAccess Mode 6 and smog readiness data
📊 Productivity
(14K)
free with in-app purchases
5
iOBD2-VW/AUDI
iOBD2-VW/AUDI
iOBD2-VW/AUDI
by Shenzhen Yunjia Intelligence Technology Co., Ltd.
Free

Transform your iPhone or iPod touch into a powerful vehicle diagnostic tool for VW, SKODA, AUDI, and SEAT cars. Read and clear fault codes with model-specific explanations, accessing more data than standard OBD readers.

Vehicle diagnostic toolRead fault codesClear fault codes
🔧 Utilities
(9)
free
6
Car Scanner | OBD Auto Doctor
Car Scanner | OBD Auto Doctor
Car Scanner | OBD Auto Doctor
OBD2 diagnostics for ELM 327
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
7
OBDeleven – OBD2 car scanner
OBDeleven – OBD2 car scanner
OBDeleven – OBD2 car scanner
Diagnostics, service & coding
Free

Transform your smartphone into a powerful car diagnostic and customization tool. Easily scan trouble codes, monitor live data, and access advanced features like coding and service functions for a wide range of car brands. Save time and money on car maintenance and personalization.

Basic OBD2 diagnosticsLive data monitoringAdvanced diagnostics for licensed brands
🔧 Utilities
(1.1K)
free with in-app purchases
8
OBD2 Expert
OBD2 Expert
OBD2 Expert
ScanTool, Simulator & Bridge
Free

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.

Vehicle diagnostics and monitoringRead and reset diagnostic trouble codes (DTC)View current sensor data
🔧 Utilities
(725)
free with in-app purchases
9
iOBD2-CF
iOBD2-CF
iOBD2-CF
by Shenzhen Yunjia Intelligence Technology Co., Ltd.
Free

Diagnose your Chun Feng motorcycle's electronic control system with this app. It reads on-board data, clears codes, and provides real-time monitoring for comprehensive maintenance and safe driving.

Read on-board dataCode reading and clearingData flow monitoring
🔧 Utilities
(1)
free
10
OBD2 Car Scanner - EOBD Facile
OBD2 Car Scanner - EOBD Facile
OBD2 Car Scanner - EOBD Facile
Torque ELM327 Diagnostic Tool
Free

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.

Read and clear engine fault codesMonitor real-time sensor dataTurn off check engine light
🔧 Utilities
(4.9K)
free with in-app purchases
11
Car Mate - OBD2 CAR Scanner
Car Mate - OBD2 CAR Scanner
Car Mate - OBD2 CAR Scanner
Car Mate - OBD2 CAR Scanner
Free

This app functions as a universal vehicle scanner using the OBD2 standard. It connects to your car via WiFi or Bluetooth 4.0 LE adapters to diagnose and scan electronic control modules. Users need a compatible ELM327 adapter to utilize its diagnostic capabilities.

Universal OBD2 scanningWorks with WiFi adaptersWorks with Bluetooth 4.0 LE adapters
🔧 Utilities
(21)
free with in-app purchases
12
OBD2 Scanner: Torque ELM 327
OBD2 Scanner: Torque ELM 327
OBD2 Scanner: Torque ELM 327
Torque OBD2 Car Scanner ELM327
Free

Transform your smartphone into a powerful car diagnostic tool. Monitor real-time engine data, read and clear trouble codes, and track your vehicle's performance. Customize your dashboard and access repair manuals to understand and fix issues.

Real-time engine data monitoringRead and clear trouble codesPerformance tracking
🔧 Utilities
(802)
free with in-app purchases
13
OBDII Scanner ELM327 OBD2
OBDII Scanner ELM327 OBD2
OBDII Scanner ELM327 OBD2
OBD2 Scanner and Trouble codes
Free

This app allows you to scan your car's trouble codes and view live data using an OBD2 Bluetooth adapter. It logs statistics and freeze frames for future reference, storing all diagnostic trouble codes (DTCs) on a server.

Scan car trouble codesView live dataLog live statistics
🔧 Utilities
(3)
free with in-app purchases
14
iOBD2-DTC
iOBD2-DTC
iOBD2-DTC
by Shenzhen Yunjia Intelligence Technology Co., Ltd.
Free

This app serves as a reference for standard Diagnostic Trouble Codes (DTCs) found in vehicles. It helps users understand fault codes generated by a car's onboard computer, aiding in problem diagnosis.

Diagnostic Trouble Code referenceFault code lookupVehicle system diagnostics
🔧 Utilities
(19)
free
15
Torque Pro : OBD2 Car Scanner
Torque Pro : OBD2 Car Scanner
Torque Pro : OBD2 Car Scanner
Torque OBD2 Car Scanner ELM
Free
$12.99 | 100% OFF

Transform your phone into a powerful car diagnostic tool. Read and clear trouble codes, monitor live sensor data, and analyze performance with real-time graphs. Get AI-powered insights and detailed vehicle history reports.

Read and clear trouble codes (DTCs)Live sensor data monitoring and loggingAI-powered trouble code explanations
🔧 Utilities
(393)
subscription
16
FasLink X
FasLink X
FasLink X
First Step to Pro.
Free

Diagnose vehicle issues and access repair solutions. This app connects wirelessly to your car's OBDII port to scan and clear trouble codes, monitor battery health, and provide detailed repair reports based on millions of reported fixes.

Scan and clear trouble codesGenerate and share repair reportsBattery monitor
🔧 Utilities
(103)
free with in-app purchases
17
inCarDoc OBD2 ELM327 Scanner
inCarDoc OBD2 ELM327 Scanner
inCarDoc OBD2 ELM327 Scanner
Car diagnostics, obd2 scanner
Free

This app acts as a car diagnostic tool, allowing users to scan fault codes, monitor real-time engine parameters, and log vehicle maintenance. It helps optimize car performance and control fuel consumption by accessing ECU data.

OBD2 fault code scannerReal-time parameter monitoringLogbook for diagnostics and maintenance
✈️ Travel
(152)
free with in-app purchases
18
Torque OBD Lite - Car Scanner
Torque OBD Lite - Car Scanner
Torque OBD Lite - Car Scanner
Obd2 car scan diagnostic tool
Free

This application allows users to diagnose their car's performance in real-time. By connecting an OBD2 Bluetooth adapter, users can easily communicate with their vehicle and access essential diagnostic widgets. It supports a wide range of OBDII protocols for comprehensive car communication.

Real-time car diagnosticsOBD2 Bluetooth adapter connectivityPopular and necessary widgets
✈️ Travel
(254)
free with in-app purchases
19
ELM327 WiFi Diagnostic
ELM327 WiFi Diagnostic
ELM327 WiFi Diagnostic
Car diagnostic
Free

This utility app connects to your vehicle's onboard diagnostics system via an ELM327 WiFi adapter. It allows you to check your car's version and supported protocols, and includes example commands for troubleshooting.

ELM327 version supportAll protocol supportVersion and protocol checking
🔧 Utilities
(1)
free
20
Advancer AD10
Advancer AD10
Advancer AD10
Xtool ADVANCER
Free

Monitor your vehicle's health in real-time, scan for faults, and receive maintenance suggestions. Features like a personalized dashboard and HUD enhance driving safety and convenience.

Automatic vehicle connectionFault scanning and suggestionsReal-time vehicle monitoring
🔧 Utilities
(27)
free

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