# How睡眠 vs 小羊助眠

The clearest difference is in-app purchases: 小羊助眠 at none against How睡眠's 5. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. How睡眠 sells 5 one-off in-app purchases. 小羊助眠 asks for nothing beyond the download.

How睡眠 ships an update every 2 weeks, 小羊助眠 fortnightly. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | How睡眠 | 小羊助眠 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 138 MB | 77 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [重庆鲤想派科技有限公司](https://appshunter.io/developer/1810646324) | [HangZhouBenYangYang](https://appshunter.io/developer/1854333549) |

## What reviewers say

### How睡眠

[App page](https://appshunter.io/ios/app/how/id6746926603)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $9.99 | one-time |
| 季度会员 | $24.99 | one-time |
| 优惠永久会员 | $29.99 | one-time |
| 年度会员 | $99.99 | one-time |
| 永久会员 | $299.99 | one-time |


### 小羊助眠

[App page](https://appshunter.io/ios/app/id6755514581)

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

**In-app purchases:** none


## Frequently asked questions

### Is How睡眠 free?

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

### Is 小羊助眠 free?

小羊助眠 is free to download, with no in-app purchases.

### Do How睡眠 or 小羊助眠 have ads?

Neither How睡眠 nor 小羊助眠 shows ads.

### Which is updated more often, How睡眠 or 小羊助眠?

How睡眠 ships an update every 2 weeks, and 小羊助眠 fortnightly. Most recently, How睡眠 was updated on November 5, 2026 and 小羊助眠 on October 30, 2026.

---

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