# BrainZap vs Proper Sudoku

The clearest difference is in-app purchases: BrainZap at none against Proper Sudoku's 1. BrainZap also leads on ads (none vs shown) and update cadence (every 3 days vs every 10 months). On price and device support there is nothing between them.

Both are free to download. Proper Sudoku sells 1 one-off in-app purchase. BrainZap asks for nothing beyond the download.

BrainZap ships an update every 3 days, Proper Sudoku every 10 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | BrainZap | Proper Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 10 months |
| Size | 22 MB | 431 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [展徽 周](https://appshunter.io/developer/1760585494) | [Gameware Europe Ltd](https://appshunter.io/developer/1794895323) |

## What reviewers say

### BrainZap

[App page](https://appshunter.io/ios/app/brainzap/id6673888160)

**Features:** macOS Compatibility

**In-app purchases:** none


### Proper Sudoku

[App page](https://appshunter.io/ios/app/proper-sudoku/id6741939830)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Upgrade | $4.99 | one-time |


## Frequently asked questions

### Is BrainZap free?

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

### Is Proper Sudoku free?

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

### Do BrainZap or Proper Sudoku have ads?

Proper Sudoku shows ads; BrainZap does not.

### Which is updated more often, BrainZap or Proper Sudoku?

BrainZap ships an update every 3 days, and Proper Sudoku every 10 months. Most recently, BrainZap was updated on October 27, 2026 and Proper Sudoku on October 28, 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.*