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Best Car Diagnostic Tool App

0+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated June 2026

The best car diagnostic tool app apps on iPhone average 4.4β˜… across 0+ titles β€” we've ranked them by what real users actually keep on their phones. Updated June 2026.

Top Picks for Car Diagnostic Tool App

OBD2 Car Scanner - EOBD Facile#1

OBD2 Car Scanner - EOBD Facile by Outils OBD Facile

Torque ELM327 Diagnostic Tool
Editor's Choice
πŸ”§ Utilities
4.3😐(36 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

An ultimate OBD2 Bluetooth car scanner app that helps diagnose engine and transmission issues by connecting to an ELM327 adapter. View and clear fault codes, see real-time data, and track trip records with this powerful tool. Check compatibility with your vehicle and access accurate diagnostics to take control of your car maintenance.

What We Love

  • πŸ‘ Helpful for diagnosing issues
  • πŸš€ Easy to use and connect
  • πŸ’‘ Provides useful vehicle data
  • πŸ” Able to read and clear error codes

Room to Improve

  • πŸ’° Expensive for full functionality
  • πŸ”’ Requires paid upgrade to access key features
  • πŸ› Connectivity issues and app crashes
FIXD OBD2 Scanner#2

FIXD OBD2 Scanner by FIXD Automotive Inc

Clear Your Check Engine Light
Strong Contender
πŸ”§ Utilities
4.6😐(26K ratings)
FreeAdsIn-App Purchases
#50in 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

An auto diagnostic application that decodes car issues into layman's terms, alerts you to maintenance needs, and now offers FIXD Premium for expert support from mechanics. Ensure your car's health and longevity with FIXD.

What We Love

  • πŸ‘ Easy to use
  • πŸš€ Quickly identifies problems
  • πŸ’° Saves money on mechanics
  • πŸ” Provides detailed diagnostic information

Room to Improve

  • πŸ”’ Requires subscription for full functionality
  • πŸ’° Expensive premium subscription
  • πŸ€– Inconsistent performance across vehicles
OBDeleven – OBD2 car scanner#3

OBDeleven – OBD2 car scanner by OBDeleven UAB

Diagnostics, service & coding
Worth Considering
πŸ”§ Utilities
4.4😞(1.1K ratings)
FreeIn-App Purchases
OBDeleven – OBD2 car scanner screenshot 1
OBDeleven – OBD2 car scanner screenshot 2
OBDeleven – OBD2 car scanner screenshot 3
OBDeleven – OBD2 car scanner screenshot 4
OBDeleven – OBD2 car scanner screenshot 5
OBDeleven – OBD2 car scanner screenshot 6

Unlock the full potential of your car with an innovative diagnostic application. Easily scan and analyze your vehicle's data for optimal performance.

What We Love

  • πŸš€ Helpful diagnostic tool
  • πŸ‘ Easy to use
  • πŸ’‘ Useful features for VW/Audi owners

Room to Improve

  • πŸ› Compatibility issues with newer devices/OS
  • πŸ’° Expensive credits/subscription model
  • πŸ” Limited functionality compared to alternatives

More Car Diagnostic Tool App apps to explore

4
BimmerLink
BimmerLink
BimmerLink
by SG Software GmbH & Co. KG
Free
$39.99 | 100% OFF

Access real-time data from your BMW or MINI with BimmerLink, including reading trouble codes, monitoring sensor values, controlling the exhaust flap, DPF regeneration, and more. Enhance your driving experience with the CarPlay add-on and seamlessly integrate vehicle monitoring. Browse supported cars and required accessories at https://bimmerlink.app.

πŸ“Š Productivity
(7.6K)
5
Car Sync Play: Car Key Play
Car Sync Play: Car Key Play
Car Sync Play: Car Key Play
Car's Play Remote Car Connect
Free

"Control and monitor your car remotely with the Car Sync Play app. Lock/unlock your car, check tire pressure, fuel level, and more from your phone or Apple Watch. Stay connected and ensure your vehicle's safety on the go."

πŸ”§ Utilities
(2.9K)
6
OBD2 Scanner: Torque ELM 327
OBD2 Scanner: Torque ELM 327
OBD2 Scanner: Torque ELM 327
Torque OBD2 Car Scanner ELM327
Free

Turn your smartphone into a car mechanic with this OBD2 scanner app! Detect issues in your vehicle, monitor performance, and access real-time data to keep your car running smoothly. Get started with your car's diagnostics now!

πŸ”§ Utilities
(802)
7
ZUS - Save Car Expenses
ZUS - Save Car Expenses
ZUS - Save Car Expenses
ZUS Smart Driving Assistant
Free

Track your car expenses, improve your driving habits, and earn cash rewards with this smart driving assistant app. Save money on maintenance and fuel while enhancing your overall driving experience. Download now to start saving!

πŸ”§ Utilities
(5.2K)
8
Auto Agent
Auto Agent
Auto Agent
by EZ LYNK
Free

A revolutionary mobile application that transforms how you manage your vehicle, offering live data display, diagnostics, data recordings, remote assistance, and software updates with ease. Access the most powerful tool in the automotive industry from your pocket, saving time and improving convenience for vehicle maintenance and care.

πŸ”§ Utilities
(34K)
9
TOPDON CarPal
TOPDON CarPal
TOPDON CarPal
OBDII Diagnostic Scan Tool
Free

Get instant access to your vehicle's information with this Bluetooth OBDII scan tool, which transforms your phone into a powerful diagnostic device with features like full system diagnosis, 10 modes of OBD2 testing, and 6 special maintenance functions. Download now to diagnose and repair your car with ease.

πŸ”§ Utilities
(28)
10
MotorData OBD ELM car scanner
MotorData OBD ELM car scanner
MotorData OBD ELM car scanner
Car diagnostic. Dashboard.
Free

Turn your phone into a powerful car diagnostic tool with this advanced OBD2 scanner app. Diagnose issues, monitor vitals, and customize your dashboard to take control of your car's maintenance and repair, and start driving smarter today!

πŸ”§ Utilities
(47)
11
OBDLink
OBDLink
OBDLink
by OBD Solutions LLC
Free

Turn your phone or tablet into a powerful diagnostic scan tool with this app, designed exclusively for use with OBDLink MX, CX, and MX WiFi adapters. Enjoy features such as checking and clearing trouble codes, real-time data display, emissions readiness, fuel economy estimation, customizable dashboards, and more. Get detailed insights into your vehicle's performance effortlessly!

✈️ Travel
(12K)
12
Car Scanner ELM OBD2
Car Scanner ELM OBD2
Car Scanner ELM OBD2
The best OBD2 diagnostic tool!
Free
πŸ”§ Utilities
(31K)
13
Car Scanner OBD2 Torque Pro
Car Scanner OBD2 Torque Pro
Car Scanner OBD2 Torque Pro
OBD2 Scan for Car Diagnostic
Free

A comprehensive OBD-2 scanner app for car diagnostics, providing real-time sensor data, diagnostic trouble code retrieval, and advanced troubleshooting capabilities for vehicles manufactured after 1996. Easily monitor your car's performance and pinpoint issues with just a tap on your screen. Subscribe for premium access to unlock all features. Explore more at (provide the link to the application).

πŸ”§ Utilities
(883)
14
OBD Fusion
OBD Fusion
OBD Fusion
OBD2 scan tool & diagnostics
$9.99

Access real-time data from your car's onboard diagnostic system with this powerful OBD2 scan tool. Monitor and analyze your vehicle's performance, troubleshoot issues, and make informed maintenance decisions. Get insights and stay on top of your car's health with OBD Fusion now!

✈️ Travel
(31)
15
CarKey Digital Car Key Connect
CarKey Digital Car Key Connect
CarKey Digital Car Key Connect
Remote Car Starter - Key Fob
Free

A digital car key app that allows users to manage various aspects of their vehicles such as mileage, EV charging, and fleet tracking. Easily link cars to the app with just four clicks.

πŸ“Š Productivity
(2.4K)
16
OBD JScan
OBD JScan
OBD JScan
by Piotr Bialic
Free

OBD JScan is a powerful application designed for Jeep owners to access and control their vehicles' onboard diagnostic information, providing detailed insights and functionality for maintenance and troubleshooting. Stay connected with your Jeep like never before - download OBD JScan now!

πŸ”§ Utilities
(0)
17
OBDeleven VAG
OBDeleven VAG
OBDeleven VAG
Scan your car & clear faults
Free

Perform car diagnostics easily with OBDeleven VAG Car diagnostics application. Simply scan your car's systems and get detailed insights for efficient troubleshooting. Try it now for a smoother driving experience!

πŸ”§ Utilities
(6.6K)
18
Torque OBD Lite - Car Scanner
Torque OBD Lite - Car Scanner
Torque OBD Lite - Car Scanner
Obd2 car scan diagnostic tool
Free

A car diagnostic tool that connects to your car via an OBD2 Bluetooth adapter, providing real-time information about your car's performance. Easily communicate with your car using the app's widgets. Learn more at [Contact Us](https://fantasticsoftwareinc.helpsite.com/contact) and view our [Privacy Policy](https://fantasticsoftwareinc.helpsite.com/articles/118271-privacy-policy) and [Terms of Service](https://fantasticsoftwareinc.helpsite.com/articles/118272-term-of-service).

✈️ Travel
(254)
19
Pelican: Automotive assistant
Pelican: Automotive assistant
Pelican: Automotive assistant
Navigation, OBD, & car widgets
Free

An automotive assistant app tailored for Apple platforms, Sidecar offers OBD scanning, CarPlay widgets, and iCloud sync. Access your car's data securely and conveniently, with options for beta testing and subscription-based extended features.

πŸ—ΊοΈ Navigation
(74)
20
ThinkDiag+
ThinkDiag+
ThinkDiag+
by THINKCAR INC
Free

ThinkDiag is an innovative vehicle diagnostic tool designed for technicians, repair shops, and DIYers, offering OE level functions, full-function OBD II diagnosis, maintenance reset, and communication within the ThinkDiag community. It supports various devices and over 100 vehicle brands, accessible through a smartphone app. Contact for more information at www.mythinkcar.com or service@mythinkcar.com.

πŸ”§ Utilities
(4K)

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