# Sudoku Express vs Cyber Protocol

The clearest difference is review sentiment: Cyber Protocol at 80% against Sudoku Express's 23%. Cyber Protocol also leads on price (Free vs $3.99) and update cadence (every 4 days vs every 6 weeks). Sudoku Express's advantage is rating (4.5 vs 4.2) and ratings volume (84 vs 6). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Cyber Protocol is free to download; Sudoku Express costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sudoku Express holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Sudoku Express has 84 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 23% of Sudoku Express's written reviews are positive against 80% of Cyber Protocol's, so the app with the better star average is not the one people write more warmly about.

Sudoku Express ships an update every 6 weeks, Cyber Protocol every 4 days. The most recent releases landed on September 20, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Sudoku Express | Cyber Protocol |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.5 (84 ratings)](https://appshunter.io/ios/app/sudoku-express/id996932318/reviews)** | [4.2 (6 ratings)](https://appshunter.io/ios/app/cyber-protocol/id1479031647/reviews) |
| Number of ratings | **84** | 6 |
| Positive reviews | 23.1% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Paid | **Free** |
| Size | 6 MB | 616 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 9+ |
| Developer | [Pheinex, LLC](https://appshunter.io/developer/996932317) | [RedDeerGames sp. z o.o.](https://appshunter.io/developer/1479024470) |

## What reviewers say

### Sudoku Express

[App page](https://appshunter.io/ios/app/sudoku-express/id996932318)

Enjoy a classic Sudoku experience with a clean, minimalist interface designed for focused puzzle-solving. Customize your game with multiple color and font options. Offers over 1,000 unique puzzles across easy, medium, and hard difficulties for extended gameplay.

**Highlights:** Minimalist flat UI design, Easy noting system, Multiple color schemes, Font selection for customization, 1,001 unique puzzles per difficulty, Easy, Medium, and Hard difficulty levels

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

**In-app purchases:** none


### Cyber Protocol

[App page](https://appshunter.io/ios/app/cyber-protocol/id1479031647)

Embark on a challenging arcade puzzle adventure in a cyberpunk world. Solve intricate levels, overcome traps, and race against time to revive a humanoid friend. Compete with friends or aim for global rankings in this demanding game.

**Highlights:** 100 unique puzzle levels, Dynamic traps and mechanics, Up to 4-player local multiplayer, Arcade mode with global ranking, Retro 80s themes and sounds, In-game music player

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Express free?

Sudoku Express costs $3.99, with no in-app purchases.

### Is Cyber Protocol free?

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

### Which has better reviews, Sudoku Express or Cyber Protocol?

Sudoku Express is rated higher. Sudoku Express averages 4.5 out of 5 from 84 ratings, while Cyber Protocol averages 4.2 from 6 ratings.

### Do Sudoku Express or Cyber Protocol have ads?

Neither Sudoku Express nor Cyber Protocol shows ads.

### Which is updated more often, Sudoku Express or Cyber Protocol?

Sudoku Express ships an update every 6 weeks, and Cyber Protocol every 4 days. Most recently, Sudoku Express was updated on September 20, 2026 and Cyber Protocol on June 1, 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.*