# Print Exercise for Arithmetic vs Ruidaichan

The clearest difference is in-app purchases: Print Exercise for Arithmetic at none against Ruidaichan's 2. Print Exercise for Arithmetic also leads on device support (3 vs 1). Ruidaichan's advantage is ads (none vs shown) and update cadence (every 5 days vs every 5 weeks). On price 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. Print Exercise for Arithmetic asks for nothing beyond the download.

Print Exercise for Arithmetic ships an update every 5 weeks, Ruidaichan every 5 days. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Print Exercise for Arithmetic | Ruidaichan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Size | 14 MB | 18 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kazuhisa Kobayashi](https://appshunter.io/developer/1580882000) | [Naoki Ohashi](https://appshunter.io/developer/1880818831) |

## What reviewers say

### Print Exercise for Arithmetic

[App page](https://appshunter.io/ios/app/print-exercise-for-arithmetic/id6450254330)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Print Exercise for Arithmetic free?

Print Exercise for Arithmetic is free to download, with no in-app purchases.

### Is Ruidaichan free?

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

### Do Print Exercise for Arithmetic or Ruidaichan have ads?

Print Exercise for Arithmetic shows ads; Ruidaichan does not.

### Which is updated more often, Print Exercise for Arithmetic or Ruidaichan?

Print Exercise for Arithmetic ships an update every 5 weeks, and Ruidaichan every 5 days. Most recently, Print Exercise for Arithmetic was updated on September 11, 2026 and Ruidaichan on September 15, 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.*