# Sudoku Blocks vs RackRush

The clearest difference is in-app purchases: Sudoku Blocks at none against RackRush's 1. Sudoku Blocks also leads on iOS requirement (11.0 vs 15.6). RackRush's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Sudoku Blocks | RackRush |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (75 ratings)](https://appshunter.io/ios/app/sudoku-blocks-brain-games/id1541586232/reviews)** | — |
| Number of ratings | **75** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Ad-supported | — |
| Size | 72 MB | 47 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [衍旋 廖](https://appshunter.io/developer/1489801990) | [Btltech Ltd](https://appshunter.io/developer/1867542085) |

## What reviewers say

### Sudoku Blocks

[App page](https://appshunter.io/ios/app/sudoku-blocks-brain-games/id1541586232)

This game combines Sudoku and block puzzle mechanics on a 9x9 grid. Strategically place blocks to complete lines and squares, aiming for combos and streaks to achieve high scores. It offers a relaxing yet challenging brain-training experience for all ages.

**Highlights:** Sudoku and block puzzle hybrid, 9x9 grid gameplay, Line and square completion, Combo and streak scoring, No time limit, Theme customization, Blast Mode

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

**In-app purchases:** none


### RackRush

[App page](https://appshunter.io/ios/app/rackrush/id6757762712)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RackRush Pro | $2.99 | one-time |


## Frequently asked questions

### Is Sudoku Blocks free?

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

### Is RackRush free?

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

### Do Sudoku Blocks or RackRush have ads?

Sudoku Blocks shows ads; RackRush does not.

### Which is updated more often, Sudoku Blocks or RackRush?

Sudoku Blocks ships an update every 2 weeks, and RackRush every 2 weeks. Most recently, Sudoku Blocks was updated on November 3, 2026 and RackRush on November 9, 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.*