# 趣味数学 vs Sudoku Solver2

The clearest difference is in-app purchases: 趣味数学 at none against Sudoku Solver2's 1. 趣味数学 also leads on ads (none vs shown). Sudoku Solver2's advantage is update cadence (every 3 weeks vs every 24 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Sudoku Solver2 sells 1 one-off in-app purchase. 趣味数学 asks for nothing beyond the download.

趣味数学 ships an update every 24 months, Sudoku Solver2 every 3 weeks. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 趣味数学 | Sudoku Solver2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 24 months | **Every 3 weeks** |
| Size | 78 MB | 67 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [雪芹 李](https://appshunter.io/developer/1507400358) | [大胜 纪](https://appshunter.io/developer/320513564) |

## What reviewers say

### 趣味数学

[App page](https://appshunter.io/ios/app/id1507966275)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sudoku Solver2

[App page](https://appshunter.io/ios/app/sudoku-solver2/id6444688222)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $4.99 | one-time |


## Frequently asked questions

### Is 趣味数学 free?

趣味数学 is free to download, with no in-app purchases.

### Is Sudoku Solver2 free?

Sudoku Solver2 is free to download, with in-app purchases available.

### Do 趣味数学 or Sudoku Solver2 have ads?

Sudoku Solver2 shows ads; 趣味数学 does not.

### Which is updated more often, 趣味数学 or Sudoku Solver2?

趣味数学 ships an update every 24 months, and Sudoku Solver2 every 3 weeks. Most recently, 趣味数学 was updated on October 19, 2026 and Sudoku Solver2 on October 8, 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.*