# ThinkDriver vs EasyDiag4

The clearest difference is review sentiment: ThinkDriver at 58% against EasyDiag4's 0%. ThinkDriver also leads on rating (4.5 vs 2.9) and update cadence (monthly vs every 18 months). EasyDiag4's advantage is monetization model (free vs paid). On price, ads, in-app purchases and device support there is nothing between them.

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

ThinkDriver holds the better App Store score, 4.5 against 2.9. That said, the two scores are not equally well evidenced: ThinkDriver has 270 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 58% of ThinkDriver's written reviews are positive against 0% of EasyDiag4's.

ThinkDriver ships an update monthly, EasyDiag4 every 18 months. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ThinkDriver | EasyDiag4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (270 ratings)](https://appshunter.io/ios/app/thinkdriver/id1502233364/reviews)** | [2.9 (19 ratings)](https://appshunter.io/ios/app/easydiag4/id1505477232/reviews) |
| Number of ratings | **270** | 19 |
| Positive reviews | **57.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 18 months |
| Monetization | Paid | **Free** |
| Size | 325 MB | 114 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [THINKCAR INC](https://appshunter.io/developer/1464847379) | [Launch Tech Co., Ltd](https://appshunter.io/developer/447568418) |

## What reviewers say

### ThinkDriver

[App page](https://appshunter.io/ios/app/thinkdriver/id1502233364)

This diagnostic tool allows car owners to perform full system vehicle checks, going beyond standard OBDII functionality. It provides immediate insights into potential car issues, acting as a comprehensive helper for vehicle maintenance.

**Highlights:** Full system vehicle diagnostics, Advanced OBDII alternative, Immediate issue detection, DIY car maintenance helper

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Works like professionals
- 👍 Handy tool for car
- 👍 Versatile and helpful
- 👍 Great tools for car
- 👍 Easy to use

**What reviewers complain about**

- 😞 Pay again for lifetime access
- 😞 Terrible support, no response
- 😞 Useless device, keeps shutting down
- 😞 Scanner does not work
- 😞 Customer service unhelpful

**Reported bugs**

- Keeps shutting down during scan
- Scanner does not work
- Not working with 2022 subscription update
- Device won't work after getting a new phone
- Keeps asking to activate device, then pay again

**Requested features**

- Add payment with Apple Cash
- Install just a code scanner icon


### 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


## Frequently asked questions

### Is ThinkDriver free?

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

### Is EasyDiag4 free?

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

### Which has better reviews, ThinkDriver or EasyDiag4?

ThinkDriver is rated higher. ThinkDriver averages 4.5 out of 5 from 270 ratings, while EasyDiag4 averages 2.9 from 19 ratings.

### Do ThinkDriver or EasyDiag4 have ads?

Neither ThinkDriver nor EasyDiag4 shows ads.

### Which is updated more often, ThinkDriver or EasyDiag4?

ThinkDriver ships an update monthly, and EasyDiag4 every 18 months. Most recently, ThinkDriver was updated on September 19, 2026 and EasyDiag4 on September 20, 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.*