# Fish Merge Master vs Cat Tower Sort

The clearest difference is in-app purchases: Cat Tower Sort at none against Fish Merge Master's 7. Cat Tower Sort also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Fish Merge Master sells 7 one-off in-app purchases. Cat Tower Sort asks for nothing beyond the download.

Fish Merge Master ships an update fortnightly, Cat Tower Sort every 2 weeks. Both last shipped on November 4, 2026.

## The numbers

| Metric | Fish Merge Master | Cat Tower Sort |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/fish-merge-master-ball-drop/id6474503491/reviews)** | — |
| Number of ratings | **8** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 180 MB | 231 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SevenSwords](https://appshunter.io/developer/1721795728) | [ACTIONFIT](https://appshunter.io/developer/1516168822) |

## What reviewers say

### Fish Merge Master

[App page](https://appshunter.io/ios/app/fish-merge-master-ball-drop/id6474503491)

Merge balls strategically to unlock their potential and progress through challenging levels. Discover power-ups to create massive combos and overcome obstacles in a captivating multiverse adventure.

**Highlights:** Strategic ball merging, Unlock ball potential, Progress through levels, Discover power-ups, Multiverse exploration, Addictive gameplay

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 Gem | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |
| 3000 Gem | $2.99 | one-time |
| 5000 Gem | $4.99 | one-time |
| 11000 Gem | $9.99 | one-time |
| 25000 Gem | $19.99 | one-time |
| 50000 Gem | $29.99 | one-time |


### Cat Tower Sort

[App page](https://appshunter.io/ios/app/cat-tower-sort/id6502568669)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fish Merge Master free?

Fish Merge Master is free to download, with in-app purchases available.

### Is Cat Tower Sort free?

Cat Tower Sort is free to download, with no in-app purchases.

### Do Fish Merge Master or Cat Tower Sort have ads?

Both Fish Merge Master and Cat Tower Sort show ads.

### Which is updated more often, Fish Merge Master or Cat Tower Sort?

Fish Merge Master ships an update fortnightly, and Cat Tower Sort every 2 weeks. Most recently, Fish Merge Master was updated on November 4, 2026 and Cat Tower Sort on November 4, 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.*