# Decrypto vs Sudoku Zen

The clearest difference is in-app purchases: Sudoku Zen at none against Decrypto's 8. Sudoku Zen also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 85%). Decrypto's advantage is ads (none vs shown) and ratings volume (124 vs 1). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Decrypto sells 8 one-off in-app purchases. Sudoku Zen asks for nothing beyond the download.

Sudoku Zen holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Decrypto has 124 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 85% of Decrypto's written reviews are positive against 100% of Sudoku Zen's.

Decrypto ships an update every 4 days, Sudoku Zen weekly. The most recent releases landed on October 26, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Decrypto | Sudoku Zen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (124 ratings)](https://appshunter.io/ios/app/decrypto-cipher-cryptograms/id1023872874/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sudoku-zen-puzzle-games/id6779178797/reviews)** |
| Number of ratings | **124** | 1 |
| Positive reviews | 85.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 17 MB | 73 MB |
| Requires iOS | 17.2 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Incognitum, MB](https://appshunter.io/developer/1019812236) | [Aleksei Popov](https://appshunter.io/developer/1896185909) |

## What reviewers say

### Decrypto

[App page](https://appshunter.io/ios/app/decrypto-cipher-cryptograms/id1023872874)

Engage in a captivating puzzle game where you decode classic ciphers and solve cryptogram word puzzles. This app offers a challenging yet accessible experience for those who enjoy riddles and code-breaking. It's designed for curious minds to train their brains with pure, ad-free fun.

**Highlights:** Decode classic ciphers, Solve cryptogram word puzzles, Break challenging codes, Brain training, VoiceOver support, Ad-free gameplay

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Help Points | $0.99 | one-time |
| 5 Keys | $1.49 | one-time |
| Remove ads | $1.99 | one-time |
| 15 Keys | $3.49 | one-time |
| 30 Keys | $5.49 | one-time |
| Unlimited Keys | $11.49 | one-time |
| Solutions | $14.99 | one-time |
| Solutions & Unlimited Keys | $19.99 | one-time |


### Sudoku Zen

[App page](https://appshunter.io/ios/app/sudoku-zen-puzzle-games/id6779178797)

Engage in daily logic practice with a clean and calming Sudoku puzzle game. Train your brain, relax, and sharpen number skills with adjustable difficulty levels and helpful tools.

**Highlights:** Classic 9x9 Sudoku puzzles, Multiple difficulty levels, Calm, minimal board design, Notes mode for candidate numbers, Smart hints and undo controls, Progress tracking and history

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Decrypto free?

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

### Is Sudoku Zen free?

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

### Which has better reviews, Decrypto or Sudoku Zen?

Sudoku Zen is rated higher. Decrypto averages 4.8 out of 5 from 124 ratings, while Sudoku Zen averages 5.0 from 1 ratings.

### Do Decrypto or Sudoku Zen have ads?

Sudoku Zen shows ads; Decrypto does not.

### Which is updated more often, Decrypto or Sudoku Zen?

Decrypto ships an update every 4 days, and Sudoku Zen weekly. Most recently, Decrypto was updated on October 26, 2026 and Sudoku Zen on September 20, 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.*