# Collaborative Sudoku vs EGK Sudoku

The clearest difference is update cadence: Collaborative Sudoku at every 3 weeks against EGK Sudoku's every 3 months. Collaborative Sudoku also leads on iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Collaborative Sudoku ships an update every 3 weeks, EGK Sudoku every 3 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | Collaborative Sudoku | EGK Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/collaborative-sudoku/id6757662311/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 29 MB | 10 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jason Huang](https://appshunter.io/developer/1704879454) | [Isaac Eng Gian Khor](https://appshunter.io/developer/1808933315) |

## What reviewers say

### Collaborative Sudoku

[App page](https://appshunter.io/ios/app/collaborative-sudoku/id6757662311)

Engage in real-time Sudoku challenges with friends on a shared grid. This app offers live updates, collaborative note-taking, and a minimalist design for a smarter, team-based puzzle experience.

**Highlights:** Real-time collaborative gameplay, Shared puzzle rooms, Live player move updates, Shared notes and markings, Clean, minimalist design, Optimized for iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


### EGK Sudoku

[App page](https://appshunter.io/ios/app/egk-sudoku/id6761875409)

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

**In-app purchases:** none


## Frequently asked questions

### Is Collaborative Sudoku free?

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

### Is EGK Sudoku free?

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

### Do Collaborative Sudoku or EGK Sudoku have ads?

Neither Collaborative Sudoku nor EGK Sudoku shows ads.

### Which is updated more often, Collaborative Sudoku or EGK Sudoku?

Collaborative Sudoku ships an update every 3 weeks, and EGK Sudoku every 3 months. Most recently, Collaborative Sudoku was updated on October 31, 2026 and EGK Sudoku on October 31, 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.*