# 元书输入法 vs MustSleep

The clearest difference is update cadence: 元书输入法 at every 6 days 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. 元书输入法 sells 3 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.

元书输入法 ships an update every 6 days, MustSleep every 4 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 元书输入法 | MustSleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (25 ratings)](https://appshunter.io/ios/app/id6744464701/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 4 months |
| Size | 111 MB | 5 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [啸 付](https://appshunter.io/developer/1625078593) | [有伟 董](https://appshunter.io/developer/1679483114) |

## What reviewers say

### 元书输入法

[App page](https://appshunter.io/ios/app/id6744464701)

**Features:** iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription (1 month) | $0.99 | per month |
| Annual subscription (1 year) | $4.99 | per year |
| Keyboard Pro(One-Time) | $9.99 | one-time |


### 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 元书输入法 free?

元书输入法 is free to download, with in-app purchases available.

### Is MustSleep free?

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

### Do 元书输入法 or MustSleep have ads?

Neither 元书输入法 nor MustSleep shows ads.

### Which is updated more often, 元书输入法 or MustSleep?

元书输入法 ships an update every 6 days, and MustSleep every 4 months. Most recently, 元书输入法 was updated on October 30, 2026 and MustSleep on October 25, 2026.

---

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