# 禅眠 vs Antares BioSync Unit

The clearest difference is in-app purchases: 禅眠 at none against Antares BioSync Unit's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Antares BioSync Unit sells 3 one-off in-app purchases. 禅眠 asks for nothing beyond the download.

## The numbers

| Metric | 禅眠 | Antares BioSync Unit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 9 MB | 2 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Yue Song](https://appshunter.io/developer/1825884244) | [天佑 伍](https://appshunter.io/developer/1846286944) |

## What reviewers say

### 禅眠

[App page](https://appshunter.io/ios/app/id6748463123)

**Features:** macOS Compatibility

**In-app purchases:** none


### Antares BioSync Unit

[App page](https://appshunter.io/ios/app/antares-biosync-unit/id6758427016)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $6.99 | one-time |
| Quarterly Membership | $17.99 | one-time |
| Annual Membership | $59.99 | one-time |


## Frequently asked questions

### Is 禅眠 free?

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

### Is Antares BioSync Unit free?

Antares BioSync Unit is free to download, with in-app purchases available.

### Do 禅眠 or Antares BioSync Unit have ads?

Neither 禅眠 nor Antares BioSync Unit 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.*