# Hidden Numbers vs Rhythm Rift

The clearest difference is price: Rhythm Rift at Free against Hidden Numbers's $1.99. Hidden Numbers's advantage is iOS requirement (12.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Rhythm Rift is free to download; Hidden Numbers costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Hidden Numbers | Rhythm Rift |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Size | 14 MB | 27 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michal Sajban](https://appshunter.io/developer/1523258286) | [Martin Edmaier](https://appshunter.io/developer/1799800534) |

## What reviewers say

### Hidden Numbers

[App page](https://appshunter.io/ios/app/hidden-numbers-math-game-pro/id1552360997)

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

**In-app purchases:** none


### Rhythm Rift

[App page](https://appshunter.io/ios/app/rhythm-rift/id6755794044)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hidden Numbers free?

Hidden Numbers costs $1.99, with no in-app purchases.

### Is Rhythm Rift free?

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

### Do Hidden Numbers or Rhythm Rift have ads?

Neither Hidden Numbers nor Rhythm Rift 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.*