# Osmo Math Wizard vs Rainbow Ghost Rescue

The clearest difference is review sentiment: Rainbow Ghost Rescue at 80% against Osmo Math Wizard's 37%. Rainbow Ghost Rescue also leads on ads (none vs shown) and rating (4.3 vs 3.9). On price, ratings volume, update cadence 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 3.9. Both are backed by a comparable volume of ratings — 181 and 300 respectively. Written reviews point the same way: 37% of Osmo Math Wizard's written reviews are positive against 80% of Rainbow Ghost Rescue's.

Osmo Math Wizard ships an update every 5 weeks, Rainbow Ghost Rescue every 3 weeks. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Osmo Math Wizard | Rainbow Ghost Rescue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (181 ratings)](https://appshunter.io/ios/app/osmo-math-wizard/id1470095030/reviews) | **[4.3 (300 ratings)](https://appshunter.io/ios/app/rainbow-ghost-rescue/id6468611248/reviews)** |
| Number of ratings | 181 | **300** |
| Positive reviews | 37.2% of reviews | **79.8% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1.8 GB | 288 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPad | **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 Math Wizard

[App page](https://appshunter.io/ios/app/osmo-math-wizard/id1470095030)

This app offers a curriculum-inspired math learning adventure for children aged 6-8. It uses interactive games to teach addition, subtraction, place value, measurement, and early algebraic concepts. The app aims to build math confidence through engaging challenges and rewards.

**Highlights:** Addition and subtraction practice, Place value and counting, Measurement skills, Algebraic thinking introduction, Repeated addition for multiplication, Problem-solving challenges

**In-app purchases:** none

**What reviewers like**

- 👍 Helps with math skills
- 👍 Fun and engaging
- 👍 Good for learning
- 👍 Highly recommended
- 👍 Motivates children

**What reviewers complain about**

- 🐛 Game crashes frequently
- 🐛 App freezes often
- 🐛 Login issues
- 🐛 Incorrect answers accepted
- 🐛 Progress lost

**Reported bugs**

- Game crashes on tutorial/first dragon
- App freezes
- Cannot sign into account (invalid email)
- Emails for registration not received
- Game not scanning pieces (chips, food)

**Requested features**

- Add more levels
- Add more stories/locations in Potions
- Ensure app supports newer iPads
- Add French language option
- Improve customer support responsiveness


### 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 Math Wizard free?

Osmo Math Wizard 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 Math Wizard or Rainbow Ghost Rescue?

Rainbow Ghost Rescue is rated higher. Osmo Math Wizard averages 3.9 out of 5 from 181 ratings, while Rainbow Ghost Rescue averages 4.3 from 300 ratings.

### Do Osmo Math Wizard or Rainbow Ghost Rescue have ads?

Osmo Math Wizard shows ads; Rainbow Ghost Rescue does not.

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

Osmo Math Wizard ships an update every 5 weeks, and Rainbow Ghost Rescue every 3 weeks. Most recently, Osmo Math Wizard was updated on October 8, 2026 and Rainbow Ghost Rescue on October 13, 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.*