# Muzukashi vs RotaStone

The clearest difference is ads: Muzukashi at none against RotaStone's shown. RotaStone's advantage is update cadence (every 2 months vs every 40 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Muzukashi ships an update every 40 months, RotaStone every 2 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Muzukashi | RotaStone |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 40 months | **Every 2 months** |
| Size | 18 MB | 60 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Santiago Sosa](https://appshunter.io/developer/581698514) | [radiuthree Co., Ltd](https://appshunter.io/developer/1158448737) |

## What reviewers say

### Muzukashi

[App page](https://appshunter.io/ios/app/muzukashi/id1229495482)

**Features:** macOS Compatibility

**In-app purchases:** none


### RotaStone

[App page](https://appshunter.io/ios/app/rotastone/id1619250280)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Muzukashi free?

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

### Is RotaStone free?

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

### Do Muzukashi or RotaStone have ads?

RotaStone shows ads; Muzukashi does not.

### Which is updated more often, Muzukashi or RotaStone?

Muzukashi ships an update every 40 months, and RotaStone every 2 months. Most recently, Muzukashi was updated on October 26, 2026 and RotaStone on November 3, 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.*