# Sudoku vs Star Groups

The clearest difference is in-app purchases: Star Groups at none against Sudoku's 7. Star Groups also leads on update cadence (daily vs every 3 months). Sudoku's advantage is iOS requirement (12.0 vs 18.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Sudoku sells 7 one-off in-app purchases. Star Groups asks for nothing beyond the download.

Sudoku ships an update every 3 months, Star Groups daily. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sudoku | Star Groups |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/star-groups/id6812230369/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 68 MB | 9 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Emdadul Haque](https://appshunter.io/developer/1784254253) | [Typress](https://appshunter.io/developer/6807032113) |

## What reviewers say

### Sudoku

[App page](https://appshunter.io/ios/app/sudoku-math-game/id6740572580)

Engage in a classic logic puzzle with multiple difficulty levels and daily challenges. This app offers a clean interface, hints, and a statistics tracker to help you improve. Play offline and customize themes for a personalized experience.

**Highlights:** Classic 9x9 Sudoku grid, Multiple difficulty levels, Daily challenges, Hints and tips, Offline play, Statistics tracker

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hints 100 | $0.99 | one-time |
| Hints 210 | $1.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Hints 550 | $4.99 | one-time |
| Hints 1250 | $9.99 | one-time |
| Hints 2550 | $19.99 | one-time |
| Hints 6550 | $49.99 | one-time |


### Star Groups

[App page](https://appshunter.io/ios/app/star-groups/id6812230369)

A minimalist logic puzzle game where you connect scattered stars into constellations using row and column clues. It offers simple rules with deep logic, designed for quick play sessions with increasing difficulty.

**Highlights:** Connect scattered stars, Solve constellation puzzles, Use row and column clues, Minimalist visual design, Short, pick-up-and-play puzzles, Increasingly challenging levels

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku free?

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

### Is Star Groups free?

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

### Do Sudoku or Star Groups have ads?

Both Sudoku and Star Groups show ads.

### Which is updated more often, Sudoku or Star Groups?

Sudoku ships an update every 3 months, and Star Groups daily. Most recently, Sudoku was updated on October 24, 2026 and Star Groups 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.*