# e睡眠 vs 禅眠

The clearest difference is update cadence: 禅眠 at every 2 weeks against e睡眠's every 3 months. 禅眠 also leads on iOS requirement (10.0 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.

e睡眠 ships an update every 3 months, 禅眠 every 2 weeks. The most recent releases landed on August 29, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | e睡眠 | 禅眠 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 147 MB | 124 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shanghai Huicheng Science and Education Equipment Co., Ltd](https://appshunter.io/developer/1277587920) | [FibreT (Shanghai) Smart Technology Co., Ltd.](https://appshunter.io/developer/1479158984) |

## What reviewers say

### e睡眠

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

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

**In-app purchases:** none


### 禅眠

[App page](https://appshunter.io/ios/app/app/id1597410303)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is e睡眠 free?

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

### Is 禅眠 free?

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

### Do e睡眠 or 禅眠 have ads?

Neither e睡眠 nor 禅眠 shows ads.

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

e睡眠 ships an update every 3 months, and 禅眠 every 2 weeks. Most recently, e睡眠 was updated on August 29, 2026 and 禅眠 on September 14, 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.*