# USleep vs e睡眠

The clearest difference is update cadence: e睡眠 at every 3 months against USleep's every 10 months. USleep's advantage is iOS requirement (7.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

USleep ships an update every 10 months, e睡眠 every 3 months. The most recent releases landed on October 3, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | USleep | e睡眠 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Size | 26 MB | 147 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Medica Technology Development Co., Ltd.](https://appshunter.io/developer/928761012) | [Shanghai Huicheng Science and Education Equipment Co., Ltd](https://appshunter.io/developer/1277587920) |

## What reviewers say

### USleep

[App page](https://appshunter.io/ios/app/usleep/id1360996406)

**Features:** macOS Compatibility

**In-app purchases:** none


### e睡眠

[App page](https://appshunter.io/ios/app/e/id1517334920)

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

**In-app purchases:** none


## Frequently asked questions

### Is USleep free?

USleep is free to download, with no in-app purchases.

### Is e睡眠 free?

e睡眠 is free to download, with no in-app purchases.

### Do USleep or e睡眠 have ads?

Neither USleep nor e睡眠 shows ads.

### Which is updated more often, USleep or e睡眠?

USleep ships an update every 10 months, and e睡眠 every 3 months. Most recently, USleep was updated on October 3, 2026 and e睡眠 on September 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.*