# EasyDiag4 vs ThinkCar pro

The clearest difference is review sentiment: ThinkCar pro at 62% against EasyDiag4's 0%. ThinkCar pro also leads on rating (4.6 vs 2.9) and update cadence (every 5 months vs every 18 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ThinkCar pro holds the better App Store score, 4.6 against 2.9. That said, the two scores are not equally well evidenced: ThinkCar pro has 323 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 0% of EasyDiag4's written reviews are positive against 62% of ThinkCar pro's.

EasyDiag4 ships an update every 18 months, ThinkCar pro every 5 months. The most recent releases landed on September 20, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | EasyDiag4 | ThinkCar pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (19 ratings)](https://appshunter.io/ios/app/easydiag4/id1505477232/reviews) | **[4.6 (323 ratings)](https://appshunter.io/ios/app/thinkcar-pro/id1527398292/reviews)** |
| Number of ratings | 19 | **323** |
| Positive reviews | 0.0% of reviews | **61.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 114 MB | 325 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Launch Tech Co., Ltd](https://appshunter.io/developer/447568418) | [THINKCAR INC](https://appshunter.io/developer/1464847379) |

## What reviewers say

### EasyDiag4

[App page](https://appshunter.io/ios/app/easydiag4/id1505477232)

This application connects to your vehicle via Bluetooth to perform comprehensive fault diagnosis across various systems. It supports reading and clearing diagnostic trouble codes, viewing data streams, and resetting service lamps, catering to the needs of the vehicle maintenance market.

**Highlights:** Bluetooth vehicle data interaction, One-click intelligent diagnosis, Full system fault diagnosis, Read DTCs, Read Data Streams, Clear DTCs, Reset Service Lamp

**Features:** macOS Compatibility

**In-app purchases:** none


### ThinkCar pro

[App page](https://appshunter.io/ios/app/thinkcar-pro/id1527398292)

This app provides professional-level vehicle diagnostics, including reading and clearing fault codes, accessing data streams, and performing special functions. It supports a wide range of car manufacturers and offers features like automatic VIN reading and report generation. Connect with other users in the community for support.

**Highlights:** OE-level professional functions, Full OBD II diagnosis, Maintenance light reset, Support for 39+ manufacturers, Automatic VIN reading, Fault code interpretation, Diagnostic report generation, User community

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- 🔍 Effective diagnostic scanning capabilities
- 💰 Good value for price
- 🌍 Works with multiple car brands
- 📱 Convenient mobile app solution

**What reviewers complain about**

- 🐛 Frequent app crashes and bugs
- ❌ Poor customer support
- 🔒 Limited vehicle model support
- 💸 Hidden costs and subscription fees
- 📊 Single parameter graphing limitation

**Reported bugs**

- App crashes and resets unexpectedly
- TPMS functionality not working
- Password registration issues
- Slow app loading times
- Graphs not rendering in engine parameters

**Requested features**

- PDF export and sharing functionality
- Multiple parameters on single graph
- Data export for external analysis
- Support for LPG/LPI fuel vehicles
- Support for VAZ vehicles


## Frequently asked questions

### Is EasyDiag4 free?

EasyDiag4 is free to download, with no in-app purchases.

### Is ThinkCar pro free?

ThinkCar pro is free to download, with no in-app purchases.

### Which has better reviews, EasyDiag4 or ThinkCar pro?

ThinkCar pro is rated higher. EasyDiag4 averages 2.9 out of 5 from 19 ratings, while ThinkCar pro averages 4.6 from 323 ratings.

### Do EasyDiag4 or ThinkCar pro have ads?

Neither EasyDiag4 nor ThinkCar pro shows ads.

### Which is updated more often, EasyDiag4 or ThinkCar pro?

EasyDiag4 ships an update every 18 months, and ThinkCar pro every 5 months. Most recently, EasyDiag4 was updated on September 20, 2026 and ThinkCar pro on September 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*