# ThinkDiag+

> Professional automotive diagnostic tool with OE-level functions and extensive vehicle support. (iPhone/iPad app by THINKCAR INC.)

- Source: https://appshunter.io/ios/app/thinkdiag-plus/id1483420979 (this page in markdown: same URL + `.md`)
- Developer: [THINKCAR INC](https://appshunter.io/developer/1464847379)
- Category: Utilities, Social Networking
- Price: Free
- Rating: 4.50/5 from 4,267 App Store ratings · 269 written reviews indexed
- Age rating: 17+
- Requires: iOS 12.0 · 524 MB
- Languages: American English, Arabic, Burmese, Khmer, Dutch, French (France), German (Germany), Greek, Hungarian, Italian and 12 more
- Released: 2020-01-04
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/thinkdiag-plus/id1483420979/reviews.md

## What is ThinkDiag+?

1. Profession functions refer to OE level functions, such as read/clear code, data flow diagram, read ECU, drive test, bidirectional special functions, etc.
2. Support full-function OBD II diagnosis, read data flow, freeze frame read IM/real-time data, read/clear fault code, vehicle on-board monitoring/computer system control operation and read vehicle information. 
3. Support vehicle maintenance light return to normal.
4. Select any vehicle diagnostic software, covering up to 39 major automobile manufacturers. 
5. Support automatic VIN reading and one-key diagnosis. 
6. Clear interpretation of fault codes and generate professional diagnostic reports. 
7. Be able to communicate with other users within the ThinkDiag community (share/help/support).

Not only for "ThinkDiag" and "ThinkDiag 2" device, but also works for "ThinkDiag Mini", "ThinkDirver", and "Thinkcar Pro" devices. 

ThinkDiag, an innovative vehicle diagnostic tool, is specially designed for repair technicians, small and medium-sized repair shops, and DIYers, to achieve the original manufacturer level diagnostic performance. It supports more than 100 vehicle brands of diagnostic services, including 15 special maintenance reset functions. ThinkDiag is as good as those comprehensive diagnostic equipment costed thousands of dollars. 

ThinkDiag is also an intelligent diagnostic device. Connecting with smartphone via Bluetooth, it is controlled to work by app. In the app, there is a diagnostic software store, and users can subscribe for diagnostic software according to their needs.

 ***Contact Us 
W: www.mythinkcar.com 
E: service@mythinkcar.com 
P: +1 833-692-2766 
2151 S Haven Ave Unit 203 Ontario CA 91761 USA

## Key features

- 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

## What do users think of ThinkDiag+?

Overall sentiment: positive

**Pros**

- 🚀 Easy to use
- 🚀 Powerful diagnostic capabilities
- 🚀 Affordable price
- 🚀 Helpful customer support
- 🚀 Versatile for DIY and professionals
- 🚀 Reliable and accurate
- 🚀 Extensive vehicle coverage

**Cons**

- 🐛 Occasional crashes or freezes
- 🐛 Compatibility issues with certain vehicles
- 🔒 Concerns about annual subscription fees
- 🔒 Limited functionality on iOS devices

**Commonly reported bugs**

- Failure to recognize VIN or vehicle information
- Inability to clear certain error codes
- Inconsistent performance across different devices

**Most requested features**

- Improved user interface and navigation
- More detailed troubleshooting guides
- Expanded vehicle coverage and special functions
- Offline mode for diagnostics

## Recent user reviews (10 of 269)

All indexed reviews: https://appshunter.io/ios/app/thinkdiag-plus/id1483420979/reviews.md

### 5/5 — Best scan tool for phone use

*2026-08-08, version 3.2.9*

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

### 5/5 — Fantastic value for the money

*2026-08-07, version 3.2.9*

The BD6 is exactly what we needed in our garage 
My dad is an OG mechanic but still it was easy for him to learn how to use thinkcar to his advantage when trying to locate faults 
Good job to the team that made this - keep on the good work

### 5/5 — 🚗

*2026-08-01, version 3.2.9*

EZ App to use, user friendly recommend it.

### 1/5 — There’s a subscription of $49 of $79 every year.

*2026-07-31, version 3.2.9*

Another subscription garbage. Worked great until my year was up and was subscription with a subscription renewal.

### 5/5 — Really worked good

*2026-07-23, version 3.2.9*

Good tool, can program and calibrate systems with it ! Really appreciate

### 1/5 — Broke my car

*2026-06-29, version 3.2.9*

Cost my hundreds to fix

### 5/5 — User friendly

*2026-06-24*

I’ve had other scan tools in the past and this has been the best by far. I think it’s the best you can get for the price. I love the AI feature and that it gives you possible caused and solutions. I no longer have to go to google after pulling codes anymore everything is done within the app and there is also community support too. Love it!

### 5/5 — Best

*2026-06-16, version 3.2.9*

Best

### 5/5 — Exceptional

*2026-06-12, version 3.2.9*

This thing is everything that it claims to be and more

### 5/5 — Best ever

*2026-06-10*

I’ve been using ThinkDiag for vehicle diagnostics and have been impressed with its features and ease of use. The app connects quickly, provides clear fault-code information, and offers useful live data that helps with troubleshooting. The interface is user-friendly, even for someone who isn’t a professional mechanic. It’s a convenient and cost-effective tool for monitoring vehicle health and diagnosing issues before they become major problems. Overall, it’s been a valuable addition to my automotive toolkit.

## Frequently asked questions about ThinkDiag+

### 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.

## Version history (last 5 releases)

### 3.3.1 — 2026-08-21

1. Updated some diagnostic software (Hyundai).
2. Fixed known bugs.

### 3.3.0 — 2026-08-17

1. Updated some diagnostic software (GM, Porsche, Aston Martin, Subaru, etc.).
2. Fixed known bugs.

### 3.2.9 — 2026-03-20

1. Update diagnostic software for VAZ V10.08.
2. Fixed known bugs.

### 3.2.8 — 2026-03-05

1. Update diagnostic software for AUDI V10.38, Citroen V10.32, NISSAN V10.52, SKODA V10.16, Smart V10.18, and Sprinter V10.40.
2. Fixed an issue with fault code reading in some Mercedes-Benz models.
3. Fixed known bugs.

### 3.2.7 — 2026-02-02

1. Fixed known issues.

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## More apps by THINKCAR INC

- [ThinkCar](https://appshunter.io/ios/app/thinkcar/id1464847380)
- [ThinkDriver](https://appshunter.io/ios/app/thinkdriver/id1502233364)
- [iCarScan](https://appshunter.io/ios/app/icarscan/id1508699839)
- [ThinkDiag mini](https://appshunter.io/ios/app/thinkdiag-mini/id1513505307)
- [星卡TD](https://appshunter.io/ios/app/td/id1514554756)

All apps by THINKCAR INC: https://appshunter.io/developer/1464847379

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*