# ThinkEasy vs KDIAG

The clearest difference is review sentiment: ThinkEasy at 100% against KDIAG's 31%. ThinkEasy also leads on rating (5.0 vs 3.3) and iOS requirement (9.0 vs 17.0). KDIAG's advantage is update cadence (fortnightly vs every 5 months) and ratings volume (20 vs 2). 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.

ThinkEasy holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: KDIAG has 20 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of ThinkEasy's written reviews are positive against 31% of KDIAG's.

ThinkEasy ships an update every 5 months, KDIAG fortnightly. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ThinkEasy | KDIAG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/thinkeasy/id1601920481/reviews)** | [3.3 (20 ratings)](https://appshunter.io/ios/app/kdiag/id6450169808/reviews) |
| Number of ratings | 2 | **20** |
| Positive reviews | **100.0% of reviews** | 30.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 204 MB | 74 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [THINKCAR INC](https://appshunter.io/developer/1464847379) | [祖策 谢](https://appshunter.io/developer/983519195) |

## What reviewers say

### ThinkEasy

[App page](https://appshunter.io/ios/app/thinkeasy/id1601920481)

This utility app tests car batteries using a Bluetooth smart battery holder. It offers various stable and reliable detection modes for comprehensive battery analysis.

**Highlights:** Bluetooth smart battery holder integration, Multiple battery detection modes, Stable and reliable testing, Car battery analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### KDIAG

[App page](https://appshunter.io/ios/app/kdiag/id6450169808)

This app offers comprehensive automotive fault detection and OBD functions for various car brands. It provides professional diagnostic services to quickly identify and resolve car issues, making driving safer and smoother for enthusiasts and professionals alike. The app supports 8 languages and is free to use.

**Highlights:** Comprehensive automotive fault detection, OBD functions, System fault diagnosis for mainstream brands, Free to use, Supports 8 languages, Professional diagnostic services

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ThinkEasy free?

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

### Is KDIAG free?

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

### Which has better reviews, ThinkEasy or KDIAG?

ThinkEasy is rated higher. ThinkEasy averages 5.0 out of 5 from 2 ratings, while KDIAG averages 3.3 from 20 ratings.

### Do ThinkEasy or KDIAG have ads?

Neither ThinkEasy nor KDIAG shows ads.

### Which is updated more often, ThinkEasy or KDIAG?

ThinkEasy ships an update every 5 months, and KDIAG fortnightly. Most recently, ThinkEasy was updated on October 14, 2026 and KDIAG on October 8, 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.*