# Ruidaichan vs ShokyozanMaster

The clearest difference is in-app purchases: ShokyozanMaster at none against Ruidaichan's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ruidaichan sells 2 in-app purchases, starting at $1.99 per month. ShokyozanMaster asks for nothing beyond the download.

## The numbers

| Metric | Ruidaichan | ShokyozanMaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 18 MB | 26 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Naoki Ohashi](https://appshunter.io/developer/1880818831) | [Kawamata Koichiro](https://appshunter.io/developer/788575817) |

## 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 |


### ShokyozanMaster

[App page](https://appshunter.io/ios/app/shokyozanmaster/id6766383214)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ruidaichan free?

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

### Is ShokyozanMaster free?

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

### Do Ruidaichan or ShokyozanMaster have ads?

Neither Ruidaichan nor ShokyozanMaster 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.*