# Stack Balance vs Sudoku Scanner

The clearest difference is update cadence: Sudoku Scanner at every 4 days against Stack Balance's monthly. Sudoku Scanner also leads on iOS requirement (13.0 vs 15.0). 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.

Stack Balance ships an update monthly, Sudoku Scanner every 4 days. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Stack Balance | Sudoku Scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Size | 1 MB | 40 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [晓 郭](https://appshunter.io/developer/1895645928) | [TECH MOON, K.K.](https://appshunter.io/developer/6781580223) |

## What reviewers say

### Stack Balance

[App page](https://appshunter.io/ios/app/stack-balance-tower-drop/id6771305276)

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

**In-app purchases:** none


### Sudoku Scanner

[App page](https://appshunter.io/ios/app/sudoku-scanner-snapdoku/id6781580221)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stack Balance free?

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

### Is Sudoku Scanner free?

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

### Do Stack Balance or Sudoku Scanner have ads?

Neither Stack Balance nor Sudoku Scanner shows ads.

### Which is updated more often, Stack Balance or Sudoku Scanner?

Stack Balance ships an update monthly, and Sudoku Scanner every 4 days. Most recently, Stack Balance was updated on October 15, 2026 and Sudoku Scanner on October 6, 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.*