# CatBlock vs Star Groups

The clearest difference is update cadence: Star Groups at daily against CatBlock's every 3 weeks. Star Groups also leads on ratings volume (3 vs 1). CatBlock's advantage is iOS requirement (15.0 vs 18.0). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for CatBlock against 5.0 for Star Groups. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

CatBlock ships an update every 3 weeks, Star Groups daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | CatBlock | Star Groups |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/catblock-block-out-puzzle/id6787829216/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/star-groups/id6812230369/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Ad-supported | Ad-supported |
| Size | 200 MB | 9 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Chengdu Infinite Seek Technology Co., Ltd](https://appshunter.io/developer/1835571102) | [Typress](https://appshunter.io/developer/6807032113) |

## What reviewers say

### CatBlock

[App page](https://appshunter.io/ios/app/catblock-block-out-puzzle/id6787829216)

Engage your mind with a relaxing logic puzzle game featuring shape-filling mechanics and adorable cats. Solve thousands of handcrafted levels using observation and deduction, with no timers or pressure.

**Highlights:** Shape-filling logic puzzles, Thousands of handcrafted levels, Adorable cat theme, Offline play supported, No timers or pressure, Hint system available

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

**In-app purchases:** none


### 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 CatBlock free?

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

### Is Star Groups free?

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

### Which has better reviews, CatBlock or Star Groups?

CatBlock and Star Groups are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do CatBlock or Star Groups have ads?

Both CatBlock and Star Groups show ads.

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

CatBlock ships an update every 3 weeks, and Star Groups daily. Most recently, CatBlock was updated on October 31, 2026 and Star Groups 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.*