# RMSleep vs Brain spa(N3)

The clearest difference is iOS requirement: RMSleep at 11.0 against Brain spa(N3)'s 15.6. 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.

## The numbers

| Metric | RMSleep | Brain spa(N3) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Size | 64 MB | 12 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Qingdao Richmat Intelligence Technology Inc.](https://appshunter.io/developer/1814751082) | [N.CER Co., Limited](https://appshunter.io/developer/1537925998) |

## What reviewers say

### RMSleep

[App page](https://appshunter.io/ios/app/rmsleep/id1476667400)

**In-app purchases:** none


### Brain spa(N3)

[App page](https://appshunter.io/ios/app/brain-span3/id6478898385)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RMSleep free?

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

### Is Brain spa(N3) free?

Brain spa(N3) is free to download, with no in-app purchases.

### Do RMSleep or Brain spa(N3) have ads?

Neither RMSleep nor Brain spa(N3) 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.*