# Sudoku Minimal vs rairyu

The clearest difference is price: rairyu at Free against Sudoku Minimal's $1.99. rairyu also leads on update cadence (every 3 weeks vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

rairyu is free to download; Sudoku Minimal costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sudoku Minimal ships an update every 2 months, rairyu every 3 weeks. The most recent releases landed on November 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sudoku Minimal | rairyu |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 35 MB | 29 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jelmer van Nuss](https://appshunter.io/developer/1880809991) | [鹏 孙](https://appshunter.io/developer/6782364248) |

## What reviewers say

### Sudoku Minimal

[App page](https://appshunter.io/ios/app/sudoku-minimal-flow/id6761064803)

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

**In-app purchases:** none


### rairyu

[App page](https://appshunter.io/ios/app/rairyu/id6782716628)

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Minimal free?

Sudoku Minimal costs $1.99, with no in-app purchases.

### Is rairyu free?

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

### Do Sudoku Minimal or rairyu have ads?

Neither Sudoku Minimal nor rairyu shows ads.

### Which is updated more often, Sudoku Minimal or rairyu?

Sudoku Minimal ships an update every 2 months, and rairyu every 3 weeks. Most recently, Sudoku Minimal was updated on November 7, 2026 and rairyu on October 25, 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.*