# Merge vs Rainbow Monsters

The clearest difference is price: Merge at Free against Rainbow Monsters's $0.99. Merge also leads on in-app purchases (none vs 1) and iOS requirement (6.0 vs 17.6). Rainbow Monsters's advantage is rating (4.5 vs 2.3) and update cadence (every 2 months vs every 20 months). On ratings volume, ads and device support there is nothing between them.

Merge is free to download; Rainbow Monsters costs $0.99 up front. Rainbow Monsters sells 1 one-off in-app purchase. Merge asks for nothing beyond the download.

Rainbow Monsters holds the better App Store score, 4.5 against 2.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Merge ships an update every 20 months, Rainbow Monsters every 2 months. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Merge | Rainbow Monsters |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/merge/id525960461/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/rainbow-monsters/id913590386/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 10 MB |
| Requires iOS | **6.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Funiza](https://appshunter.io/developer/1078093806) | [NUIFISH LIMITED](https://appshunter.io/developer/525325232) |

## What reviewers say

### Merge

[App page](https://appshunter.io/ios/app/merge/id525960461)

Engage in a time-sensitive challenge to clear digital mess and defeat viruses. Navigate through numerous levels, utilizing funny music and graphics to aid your mission.

**Highlights:** 72 levels, 12 bonus levels, Game Center support, Global leaderboard, Facebook leaderboard, Funny music and graphics

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎮 Fun and addictive gameplay
- 🎨 Cute and appealing graphics
- ⏱️ Easy to learn mechanics
- 🎯 Challenging level progression
- 👨‍👩‍👧‍👦 Suitable for all ages

**What reviewers complain about**

- 🐛 Frequent crashes throughout gameplay
- 📱 Crashes on specific levels (especially level 2-3)
- 🔄 Crashes after completing levels
- 📊 Unpredictable virus/enemy movement
- 🎮 Imprecise controls and physics

**Reported bugs**

- App crashes on level launch
- App crashes after completing levels
- App crashes during level transitions
- App crashes after intro comic
- Force closes on specific levels (2, 3, 13)

**Requested features**

- Fix crashing issues across all levels
- Improve game stability and performance
- Better control precision for blob selection
- Delay bomb introduction to higher levels
- Improve physics consistency


### Rainbow Monsters

[App page](https://appshunter.io/ios/app/rainbow-monsters/id913590386)

A fun color-matching game where players guide monsters to eat falling rainbow pieces. Slide monsters left or right to match colors, with a numbers mode for easier identification. Compete with friends through Game Center and unlock achievements.

**Highlights:** Color matching gameplay, Monster character control, Falling rainbow pieces, Numbers mode for colorblind players, Game Center integration, 23 unlockable achievements

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Merge free?

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

### Is Rainbow Monsters free?

Rainbow Monsters costs $0.99, and also offers in-app purchases.

### Which has better reviews, Merge or Rainbow Monsters?

Rainbow Monsters is rated higher. Merge averages 2.3 out of 5 from 3 ratings, while Rainbow Monsters averages 4.5 from 2 ratings.

### Do Merge or Rainbow Monsters have ads?

Neither Merge nor Rainbow Monsters shows ads.

### Which is updated more often, Merge or Rainbow Monsters?

Merge ships an update every 20 months, and Rainbow Monsters every 2 months. Most recently, Merge was updated on October 21, 2026 and Rainbow Monsters on October 11, 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.*