Free

Details

  • Released
  • Updated
  • January 4, 2020
  • September 8, 2026

Features

ThinkDiag+ screenshot #1 for iPhone
ThinkDiag+ screenshot #2 for iPhone
ThinkDiag+ screenshot #3 for iPhone
ThinkDiag+ screenshot #4 for iPhone
ThinkDiag+ screenshot #5 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

This app provides professional-level vehicle diagnostics, offering features like reading/clearing fault codes, data flow analysis, and special maintenance functions. It supports a wide range of car brands and allows users to subscribe to specific diagnostic software. Connects via Bluetooth to your smartphone for intelligent vehicle analysis.

OE-level diagnostic functions
Full OBD II diagnosis
Special maintenance functions
Supports 100+ vehicle brands
Automatic VIN reading
Professional diagnostic reports
In-app user community
Show original description

What users say

See all reviews

What's New in ThinkDiag+

3.3.2

September 8, 2026

1. Updated some diagnostic software (SGM、TOYOTA、USAFORD、MAZDA、KIA、SUBARU). 2. Fixed known bugs.

User reviews

Amazing technology

ThinkDiag+ has been a great diagnostic tool for me. The app is easy to navigate, connects quickly, and gives access to a lot more information and functions than a basic code reader. I especially like being able to read and clear codes from multiple modules, view live data, and access advanced diagnostic features right from my phone.

For the price, it offers a lot of capability without having to spend thousands on a professional scan tool. It has already helped me diagnose problems faster and saved me money by giving me a better idea of what actually needs repaired before replacing parts. Definitely a useful tool for anyone who works on their own vehicles.
Show more

No bmw coodding

Do not easte money for this sheets program, doesn’t work with bmw, customer service is unsatisfactory

Amazing Device

I bought this when I wanted to pair a key fob with my car. I didn’t ever figure out how to do that but it came in handy so many times. Every time my car suddenly had a light come on I simply plugged in the device and with a few buttons I would know what issues it was experiencing and able to address them promptly without a visit to the auto part store
Show more

Simply doesn’t work

The version of this product I purchased is supposed to allow me to read error codes, and even to reset them, yet even properly connect to my car. Documentation is worse than poor. Customer support is even worse. The only useful thing I can do is to monitor real time data from the engine, but that’s not what I need.
Show more

Best scan tool for phone use

Does more then most tools that cost 5 grand or more. Very good device and price!!

Developer apps

User experience

🐞

Reported Bugs

3 issues

Failure to recognize VIN or vehicle information

Bug

Inability to clear certain error codes

Bug

Inconsistent performance across different devices

Bug

Requested Features

4 requests

Improved user interface and navigation

Feature

More detailed troubleshooting guides

Feature

Expanded vehicle coverage and special functions

Feature

Offline mode for diagnostics

Feature

FAQ

What kind of diagnostic functions does this app offer?

The app provides OE-level diagnostic functions, including reading and clearing fault codes, analyzing data flow, reading ECU information, performing drive tests, and executing bidirectional special functions. It also supports full-function OBD II diagnosis and vehicle maintenance light resets.

How many car brands does the app support?

The app supports diagnostic services for over 100 major automobile manufacturers. Users can subscribe to diagnostic software for specific vehicle brands based on their needs.

What is the cost of using this app?

The app itself is free to download and use for basic functions. However, users can subscribe to diagnostic software for specific vehicle brands and functions within the app's diagnostic software store, which incurs a cost.

What devices are compatible with this app?

This app is compatible with ThinkDiag, ThinkDiag 2, ThinkDiag Mini, ThinkDriver, and Thinkcar Pro devices. It connects to your smartphone via Bluetooth to control the diagnostic hardware.

Who would benefit most from using this app?

This app is ideal for professional repair technicians, small and medium-sized repair shops, and DIY car owners who need advanced vehicle diagnostic capabilities. It offers performance comparable to expensive professional diagnostic equipment.