# CoSudoku vs Collaborative Sudoku

The clearest difference is update cadence: CoSudoku at every 6 days against Collaborative Sudoku's every 3 weeks. 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.

CoSudoku ships an update every 6 days, Collaborative Sudoku every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CoSudoku | Collaborative 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 6 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 45 MB | 29 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ayova Technologies](https://appshunter.io/developer/1805380017) | [Jason Huang](https://appshunter.io/developer/1704879454) |

## What reviewers say

### CoSudoku

[App page](https://appshunter.io/ios/app/cosudoku/id6757550642)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is CoSudoku free?

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

### Is Collaborative Sudoku free?

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

### Do CoSudoku or Collaborative Sudoku have ads?

Neither CoSudoku nor Collaborative Sudoku shows ads.

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

CoSudoku ships an update every 6 days, and Collaborative Sudoku every 3 weeks. Most recently, CoSudoku was updated on October 25, 2026 and Collaborative Sudoku on October 24, 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.*