# Ruidaichan vs MuseScope

Ruidaichan and MuseScope are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Ruidaichan sells 2 in-app purchases, starting at $1.99 per month and MuseScope sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Ruidaichan | MuseScope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 18 MB | 10 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Naoki Ohashi](https://appshunter.io/developer/1880818831) | [Igor Fomin](https://appshunter.io/developer/6794309501) |

## What reviewers say

### Ruidaichan

[App page](https://appshunter.io/ios/app/ruidaichan-extra-math-practice/id6759811359)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Light Plan | $1.99 | per month |
| Premium Plan | $4.99 | per month |


### MuseScope

[App page](https://appshunter.io/ios/app/musescope-art-guide/id6794309499)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MuseScope Premium Monthly | $7.99 | per month |
| MuseScope Premium Yearly | $59.99 | per year |


## Frequently asked questions

### Is Ruidaichan free?

Ruidaichan is free to download, with in-app purchases available.

### Is MuseScope free?

MuseScope is free to download, with in-app purchases available.

### Do Ruidaichan or MuseScope have ads?

Neither Ruidaichan nor MuseScope 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.*