# Backword vs Sudoku Muse!

The clearest difference is in-app purchases: Sudoku Muse! at none against Backword's 2. Sudoku Muse! also leads on update cadence (every 2 days vs every 8 days) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Backword sells 2 in-app purchases, starting at $1.99 per month. Sudoku Muse! asks for nothing beyond the download.

Backword ships an update every 8 days, Sudoku Muse! every 2 days. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Backword | Sudoku Muse! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (228 ratings)](https://appshunter.io/ios/app/sudoku-muse/id6776531027/reviews)** |
| Number of ratings | — | **228** |
| Positive reviews | — | 84.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 8 days | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 14 MB | 115 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Sean Williams](https://appshunter.io/developer/1500549064) | [CyberGame Limited](https://appshunter.io/developer/1778824442) |

## What reviewers say

### Backword

[App page](https://appshunter.io/ios/app/backword/id6773428497)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Pass | $1.99 | per month |
| Annual Pro Pass | $11.99 | per year |


### Sudoku Muse!

[App page](https://appshunter.io/ios/app/sudoku-muse/id6776531027)

This logic puzzle game challenges you to place cats in specific regions without them touching, using deduction. It offers thousands of levels and an endless mode for continuous brain training. Play offline with a gentle tutorial and daily challenges.

**Highlights:** Cat placement logic puzzles, Thousands of levels, Endless mode, Daily challenges, Offline play, Gentle tutorial

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Backword free?

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

### Is Sudoku Muse! free?

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

### Do Backword or Sudoku Muse! have ads?

Both Backword and Sudoku Muse! show ads.

### Which is updated more often, Backword or Sudoku Muse!?

Backword ships an update every 8 days, and Sudoku Muse! every 2 days. Most recently, Backword was updated on October 23, 2026 and Sudoku Muse! on October 21, 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.*