# 稳了! vs MistakeBook

The clearest difference is update cadence: 稳了! at daily against MistakeBook's every 2 weeks. 稳了! also leads on iOS requirement (13.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 稳了! sells 1 in-app purchase, starting at $2.99 per month and MistakeBook sells 1 in-app purchase, starting at $0.99 per 6 months. Whichever you choose, the download price is not the number that matters.

稳了! ships an update daily, MistakeBook every 2 weeks. Both last shipped on October 3, 2026.

## The numbers

| Metric | 稳了! | MistakeBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Size | 30 MB | 72 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [探渊科技](https://appshunter.io/developer/1814267710) | [Wei Shuo Wu](https://appshunter.io/developer/527929940) |

## What reviewers say

### 稳了!

[App page](https://appshunter.io/ios/app/ai/id6754680276)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度订阅 | $2.99 | per month |


### MistakeBook

[App page](https://appshunter.io/ios/app/mistakebook/id6757340127)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MistakeBook訂閱方案 | $0.99 | per 6 months |


## Frequently asked questions

### Is 稳了! free?

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

### Is MistakeBook free?

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

### Do 稳了! or MistakeBook have ads?

Neither 稳了! nor MistakeBook shows ads.

### Which is updated more often, 稳了! or MistakeBook?

稳了! ships an update daily, and MistakeBook every 2 weeks. Most recently, 稳了! was updated on October 3, 2026 and MistakeBook on October 3, 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.*