# Sudoku Tutor vs 3D Puzzle Game「VariableCube」

The clearest difference is update cadence: 3D Puzzle Game「VariableCube」 at every 5 days against Sudoku Tutor's every 3 weeks. Sudoku Tutor's advantage is iOS requirement (17.6 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sudoku Tutor ships an update every 3 weeks, 3D Puzzle Game「VariableCube」 every 5 days. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Sudoku Tutor | 3D Puzzle Game「VariableCube」 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 13 MB | 10 MB |
| Requires iOS | **17.6** | 26.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kenichi Nakagawa](https://appshunter.io/developer/1831663034) | [naohito fukunishi](https://appshunter.io/developer/1838068833) |

## What reviewers say

### Sudoku Tutor

[App page](https://appshunter.io/ios/app/sudoku-tutor-camera-solver/id6755796331)

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

**In-app purchases:** none


### 3D Puzzle Game「VariableCube」

[App page](https://appshunter.io/ios/app/3d-puzzle-gamevariablecube/id6772635902)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Tutor free?

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

### Is 3D Puzzle Game「VariableCube」 free?

3D Puzzle Game「VariableCube」 is free to download, with no in-app purchases.

### Do Sudoku Tutor or 3D Puzzle Game「VariableCube」 have ads?

Both Sudoku Tutor and 3D Puzzle Game「VariableCube」 show ads.

### Which is updated more often, Sudoku Tutor or 3D Puzzle Game「VariableCube」?

Sudoku Tutor ships an update every 3 weeks, and 3D Puzzle Game「VariableCube」 every 5 days. Most recently, Sudoku Tutor was updated on October 25, 2026 and 3D Puzzle Game「VariableCube」 on November 5, 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.*