# Osmo Numbers vs Rainbow Ghost Rescue

The clearest difference is review sentiment: Rainbow Ghost Rescue at 80% against Osmo Numbers's 33%. Rainbow Ghost Rescue also leads on rating (4.3 vs 3.8) and monetization model (free vs free with in-app purchases). On price, ratings volume, 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.

Rainbow Ghost Rescue holds the better App Store score, 4.3 against 3.8. Both are backed by a comparable volume of ratings — 146 and 367 respectively. Written reviews point the same way: 33% of Osmo Numbers's written reviews are positive against 80% of Rainbow Ghost Rescue's.

Osmo Numbers ships an update every 2 months, Rainbow Ghost Rescue every 3 weeks. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Osmo Numbers | Rainbow Ghost Rescue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (146 ratings)](https://appshunter.io/ios/app/osmo-numbers/id1531762562/reviews) | **[4.3 (367 ratings)](https://appshunter.io/ios/app/rainbow-ghost-rescue/id6468611248/reviews)** |
| Number of ratings | 146 | **367** |
| Positive reviews | 33.3% of reviews | **79.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 358 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 Numbers

[App page](https://appshunter.io/ios/app/osmo-numbers/id1531762562)

Engage in hands-on math activities with physical tiles that interact with your device. Solve problems to collect virtual fish, learn geography, and explore marine biology in a fun, stress-free environment.

**Highlights:** Hands-on play with physical tiles, Counting, addition, subtraction, multiplication, Collect over 100 virtual fish, Learn geography and marine biology, Real-time feedback, Stress-free learning environment

**In-app purchases:** none


### 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 Numbers free?

Osmo Numbers 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 Numbers or Rainbow Ghost Rescue?

Rainbow Ghost Rescue is rated higher. Osmo Numbers averages 3.8 out of 5 from 146 ratings, while Rainbow Ghost Rescue averages 4.3 from 367 ratings.

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

Neither Osmo Numbers nor Rainbow Ghost Rescue shows ads.

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

Osmo Numbers ships an update every 2 months, and Rainbow Ghost Rescue every 3 weeks. Most recently, Osmo Numbers was updated on October 21, 2026 and Rainbow Ghost Rescue on October 20, 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.*