# 作业打卡 vs MustSleep

The clearest difference is update cadence: 作业打卡 at fortnightly against MustSleep's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 作业打卡 sells 2 in-app purchases, starting at $0.99 per month and MustSleep sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

作业打卡 ships an update fortnightly, MustSleep every 4 months. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 作业打卡 | MustSleep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 57 MB | 5 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京创效未来](https://appshunter.io/developer/1714229626) | [有伟 董](https://appshunter.io/developer/1679483114) |

## What reviewers say

### 作业打卡

[App page](https://appshunter.io/ios/app/and-and/id6740259843)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 作业打卡-会员订阅 | $0.99 | per month |
| 年度会员 | $3.99 | per year |


### MustSleep

[App page](https://appshunter.io/ios/app/mustsleep/id6763500660)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is 作业打卡 free?

作业打卡 is free to download, with in-app purchases available.

### Is MustSleep free?

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

### Do 作业打卡 or MustSleep have ads?

Neither 作业打卡 nor MustSleep shows ads.

### Which is updated more often, 作业打卡 or MustSleep?

作业打卡 ships an update fortnightly, and MustSleep every 4 months. Most recently, 作业打卡 was updated on October 28, 2026 and MustSleep 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.*