# Stack Cats vs CatMerge

The clearest difference is in-app purchases: Stack Cats at none against CatMerge's 1. Stack Cats also leads on ads (none vs shown) and iOS requirement (9.0 vs 12.0). CatMerge's advantage is update cadence (every 5 days vs every 3 weeks). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. CatMerge sells 1 one-off in-app purchase. Stack Cats asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Stack Cats against 4.7 for CatMerge. Both are backed by a comparable volume of ratings — 30 and 89 respectively. Written reviews are what separate them: 89% of Stack Cats's written reviews are positive against 91% of CatMerge's.

Stack Cats ships an update every 3 weeks, CatMerge every 5 days. The most recent releases landed on October 19, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Stack Cats | CatMerge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (30 ratings)](https://appshunter.io/ios/app/stack-cats/id1562195486/reviews) | **[4.7 (89 ratings)](https://appshunter.io/ios/app/catmerge-puzzle/id6472161068/reviews)** |
| Number of ratings | 30 | **89** |
| Positive reviews | 88.9% of reviews | **90.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 116 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fitchett Studios](https://appshunter.io/developer/1562195488) | [U-F5 Games](https://appshunter.io/developer/1557623786) |

## What reviewers say

### Stack Cats

[App page](https://appshunter.io/ios/app/stack-cats/id1562195486)

Tap to stack adorable cats as high as you can in this fun and safe mobile game. Unlock a variety of cute cats and kittens, explore interactive scenarios, and compete with friends on leaderboards. Enjoy a rewarding experience with prizes and achievements.

**Highlights:** Tap to stack cats, Unlockable cute cats and kittens, Interactive scenarios, Prize screen and bonuses, Online achievements, Leaderboards

**Features:** macOS Compatibility

**In-app purchases:** none


### CatMerge

[App page](https://appshunter.io/ios/app/catmerge-puzzle/id6472161068)

Combine adorable, bouncy cats by touching and colliding them. Strategically merge cats of different sizes to create bigger ones, with the ultimate goal of transforming them into a majestic tiger. Enjoy this delightful puzzle journey with multiple language support.

**Highlights:** Combine and merge cats, Transform cats into different characters, Create a majestic tiger, Simple touch controls, Strategic merging gameplay, Multiple language support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $2.99 | one-time |


## Frequently asked questions

### Is Stack Cats free?

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

### Is CatMerge free?

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

### Which has better reviews, Stack Cats or CatMerge?

CatMerge is rated higher. Stack Cats averages 4.6 out of 5 from 30 ratings, while CatMerge averages 4.7 from 89 ratings.

### Do Stack Cats or CatMerge have ads?

CatMerge shows ads; Stack Cats does not.

### Which is updated more often, Stack Cats or CatMerge?

Stack Cats ships an update every 3 weeks, and CatMerge every 5 days. Most recently, Stack Cats was updated on October 19, 2026 and CatMerge on October 21, 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.*