# BrainZap vs Just Plain Sudoku

The clearest difference is ads: BrainZap at none against Just Plain Sudoku's shown. BrainZap also leads on update cadence (every 3 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

BrainZap ships an update every 3 days, Just Plain Sudoku every 2 months. The most recent releases landed on October 15, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | BrainZap | Just Plain Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 2 months |
| Size | 22 MB | 42 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [展徽 周](https://appshunter.io/developer/1760585494) | [Alptug Ince](https://appshunter.io/developer/1803226169) |

## What reviewers say

### BrainZap

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Just Plain Sudoku

[App page](https://appshunter.io/ios/app/just-plain-sudoku/id6743500580)

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

**In-app purchases:** none


## Frequently asked questions

### Is BrainZap free?

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

### Is Just Plain Sudoku free?

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

### Do BrainZap or Just Plain Sudoku have ads?

Just Plain Sudoku shows ads; BrainZap does not.

### Which is updated more often, BrainZap or Just Plain Sudoku?

BrainZap ships an update every 3 days, and Just Plain Sudoku every 2 months. Most recently, BrainZap was updated on October 15, 2026 and Just Plain Sudoku on October 19, 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.*