# 快乐测测 vs 心之易

The clearest difference is in-app purchases: 快乐测测 at none against 心之易's 6. 心之易's advantage is update cadence (monthly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 心之易 sells 6 one-off in-app purchases. 快乐测测 asks for nothing beyond the download.

快乐测测 ships an update every 2 months, 心之易 monthly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 快乐测测 | 心之易 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 233 MB | 59 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [北京快乐测测信息技术有限公司](https://appshunter.io/developer/1675994671) | [Beijing Xinzhiyi Technology Co., Ltd](https://appshunter.io/developer/1773729558) |

## What reviewers say

### 快乐测测

[App page](https://appshunter.io/ios/app/id1624829695)

**In-app purchases:** none


### 心之易

[App page](https://appshunter.io/ios/app/ai/id6737379010)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 总结加油卡 | $0.99 | one-time |
| 评估加油卡 | $0.99 | one-time |
| 提示加油卡 | $2.99 | one-time |
| 基础对练卡 | $5.99 | one-time |
| 对练进阶卡 | $19.99 | one-time |
| 心之易大会员·全年 | $19.99 | one-time |


## Frequently asked questions

### Is 快乐测测 free?

快乐测测 is free to download, with no in-app purchases.

### Is 心之易 free?

心之易 is free to download, with in-app purchases available.

### Do 快乐测测 or 心之易 have ads?

Neither 快乐测测 nor 心之易 shows ads.

### Which is updated more often, 快乐测测 or 心之易?

快乐测测 ships an update every 2 months, and 心之易 monthly. Most recently, 快乐测测 was updated on October 27, 2026 and 心之易 on October 25, 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.*