# Tank Mason vs Sudoku Circle

The clearest difference is update cadence: Sudoku Circle at every 5 days against Tank Mason's every 3 weeks. 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.

Tank Mason ships an update every 3 weeks, Sudoku Circle every 5 days. Both last shipped on November 8, 2026.

## The numbers

| Metric | Tank Mason | Sudoku Circle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 99 MB | 38 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Schroeder's Software Solutions, LLC](https://appshunter.io/developer/1615832706) | [Hirlab Consultancy Limited](https://appshunter.io/developer/1783962674) |

## What reviewers say

### Tank Mason

[App page](https://appshunter.io/ios/app/tank-mason/id6584516448)

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

**In-app purchases:** none


### Sudoku Circle

[App page](https://appshunter.io/ios/app/sudoku-circle/id6742221513)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tank Mason free?

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

### Is Sudoku Circle free?

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

### Do Tank Mason or Sudoku Circle have ads?

Neither Tank Mason nor Sudoku Circle shows ads.

### Which is updated more often, Tank Mason or Sudoku Circle?

Tank Mason ships an update every 3 weeks, and Sudoku Circle every 5 days. Most recently, Tank Mason was updated on November 8, 2026 and Sudoku Circle on November 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.*