# Osmo World vs Rainbow Ghost Rescue

The clearest difference is review sentiment: Rainbow Ghost Rescue at 80% against Osmo World's 42%. Rainbow Ghost Rescue also leads on rating (4.3 vs 3.9) and update cadence (every 3 weeks vs every 2 months). Osmo World's advantage is ratings volume (1.4K vs 369). On price, ads, in-app purchases and device support there is nothing between them.

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

Rainbow Ghost Rescue holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 1.4K and 369 respectively. Written reviews point the same way: 42% of Osmo World's written reviews are positive against 80% of Rainbow Ghost Rescue's.

Osmo World ships an update every 2 months, Rainbow Ghost Rescue every 3 weeks. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Osmo World | Rainbow Ghost Rescue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (1.4K ratings)](https://appshunter.io/ios/app/osmo-world/id1350943542/reviews) | **[4.3 (369 ratings)](https://appshunter.io/ios/app/rainbow-ghost-rescue/id6468611248/reviews)** |
| Number of ratings | **1.4K** | 369 |
| Positive reviews | 42.3% of reviews | **79.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 347 MB | 288 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tangible Play](https://appshunter.io/developer/799157444) | [Shonduras Inc.](https://appshunter.io/developer/1505926813) |

## What reviewers say

### Osmo World

[App page](https://appshunter.io/ios/app/osmo-world/id1350943542)

This app serves as a central hub for a collection of educational games designed to foster creativity, problem-solving, and social interaction in children. It allows users to launch into various Osmo games and collect virtual rewards.

**Highlights:** Launch Osmo games, Explore game library, Win collectible stickers, Hands-on learning, Promotes creativity, Encourages problem-solving, Fosters social interaction

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and educational
- 🤩 Nostalgic and engaging
- 🎨 Creative expression
- 🕹️ Variety of mini-games

**What reviewers complain about**

- 🐛 Compatibility issues with newer devices
- 🔒 Difficult login/account management
- 💸 Expensive with additional purchases required
- 🔧 Glitchy and buggy performance

**Reported bugs**

- App crashes or freezes
- Camera recognition problems
- Saved progress/data loss
- Incompatibility with certain iPad models

**Requested features**

- More game content and updates
- Improved account/progress syncing
- Simplified setup and onboarding
- Better support for newer hardware


### Rainbow Ghost Rescue

[App page](https://appshunter.io/ios/app/rainbow-ghost-rescue/id6468611248)

Embark on a colorful adventure to clean up gooey messes on Pirate Island and beyond. Rescue adorable characters, unlock new friends, and battle a mischievous pirate crab. Explore diverse worlds and enjoy endless fun with multiple game modes.

**Highlights:** Clean up Purple Portal Goo, Rescue and collect characters, Battle the RainbowGhost Pirate Crab, Unlock 40+ story levels, Play Marshmallow Mode with infinite levels, Collect 30+ playable characters

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💕 Satisfying and fun gameplay
- 👍 Visually appealing graphics
- 🎨 Colorful and creative design
- 🤩 Engaging for all ages
- 🎉 Exciting and entertaining

**What reviewers complain about**

- 🐛 Occasional crashes or glitches
- 🤯 Frustrating difficulty spikes
- ⏱️ Repetitive gameplay after a while
- 🤔 Unclear or confusing instructions

**Reported bugs**

- Game freezing or closing unexpectedly
- Levels not registering as completed
- Inconsistent controls or responsiveness

**Requested features**

- More diverse levels and challenges
- Additional characters and customization options
- Ability to save progress and resume later
- Multiplayer or co-op game modes


## Frequently asked questions

### Is Osmo World free?

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

### Is Rainbow Ghost Rescue free?

Rainbow Ghost Rescue is free to download, with no in-app purchases.

### Which has better reviews, Osmo World or Rainbow Ghost Rescue?

Rainbow Ghost Rescue is rated higher. Osmo World averages 3.9 out of 5 from 1.4K ratings, while Rainbow Ghost Rescue averages 4.3 from 369 ratings.

### Do Osmo World or Rainbow Ghost Rescue have ads?

Neither Osmo World nor Rainbow Ghost Rescue shows ads.

### Which is updated more often, Osmo World or Rainbow Ghost Rescue?

Osmo World ships an update every 2 months, and Rainbow Ghost Rescue every 3 weeks. Most recently, Osmo World was updated on October 25, 2026 and Rainbow Ghost Rescue on October 27, 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.*