# 心镜冥想日记 vs Slept Yet?

The clearest difference is in-app purchases: 心镜冥想日记 at none against Slept Yet?'s 3. 心镜冥想日记 also leads on iOS requirement (11.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Slept Yet? sells 3 in-app purchases, starting at $2.99 per month. 心镜冥想日记 asks for nothing beyond the download.

## The numbers

| Metric | 心镜冥想日记 | Slept Yet? |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | — |
| Size | 21 MB | 35 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Shenzhen EEGSmart Technology Co., Ltd.](https://appshunter.io/developer/1072246018) | [DECHUN WANG](https://appshunter.io/developer/1827358480) |

## What reviewers say

### 心镜冥想日记

[App page](https://appshunter.io/ios/app/id1246665847)

**Features:** macOS Compatibility

**In-app purchases:** none


### Slept Yet?

[App page](https://appshunter.io/ios/app/slept-yet/id6782459174)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Slept Yet? Premium Monthly | $2.99 | per month |
| Slept Yet? Premium Yearly | $19.99 | per year |
| Slept Yet? Premium Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is 心镜冥想日记 free?

心镜冥想日记 is free to download, with no in-app purchases.

### Is Slept Yet? free?

Slept Yet? is free to download, with in-app purchases available.

### Do 心镜冥想日记 or Slept Yet? have ads?

Neither 心镜冥想日记 nor Slept Yet? shows ads.

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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.*