Osmo Math Wizard vs Rainbow Ghost Rescue
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Osmo Math Wizard
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.
- Addition and subtraction practice
- Place value and counting
- Measurement skills
- Algebraic thinking introduction
- Repeated addition for multiplication
- Problem-solving challenges
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A self-paced and curriculum-inspired learning adventure for ages 6-8. Part of the Osmo Math Series for Grades 1-2, Math Wizard takes your child on an adventure that builds math confidence and rewards them along the way. Magical Workshop: An addition & subtraction adventure! In this collection of games, brew potions with dragon claws and sparkle dust to master place value. Continue your quest as you count balloons to help dragons fly! Part of the Osmo Math Series. What they’ll learn Addition and subtraction within 120 Counting and place value Comparing numbers Secrets of the Dragons: Master measurement with Math Wizard! Learn measurement at your own pace in a world filled with rare dragons. Explore the Dragon Reserve to complete your Dragon Guidebook. Measure and care for your dragons and watch them grow! What they’ll learn How to use non-standard units to measure How to use ruler to measure Estimating length Adding lengths Amazing Airships: Build your Math Wizard Skills! Join Rupert in building and designing airships for the many islands of Spellbarrow Port! Using mathematical thinking plus Rupert’s magical wrench, you’ll deliver packages and navigate through challenges. What they’ll learn Building and balancing equations Addition and subtraction practice Solving for an unknown value Introduction to algebraic thinking Enchanted World Games: A Multiplication Challenge! Race to create power smoothies! Boost your math skills while giving your team the magic fuel they need to take home the gold! What they’ll learn Repeated addition as a foundation of multiplication Advanced addition and subtraction Number decomposition Analytical skills … More games to come! ... ABOUT OSMO -- 21ST CENTURY PLAY AND LEARNING: Osmo uses the screen to create a new healthy, hands-on learning experience that promotes creativity, problem-solving and social interaction. We do this with our reflective artificial intelligence technology.
Rainbow Ghost Rescue
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.
- 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
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Ahoy!! PiRATE iSLAND got covered in Purple Portal Goo YUCK!! We need the help of the Rainbow Ghosts to clean this mess up! Play as Pink, Blue, Green, or Purple in this new A for Adley game!! PiRATE iSLAND is not the only thing that needs saving! There are tons of characters from Adley's Playspace that are stuck in the Portal Goo! Save friends along the way and add them to your cleanup crew!! Watch out for the RainbowGhost Pirate Crab! He will shoot cannon balls and spread more Portal Goo!! Keep a watchful eye out for future updates. Pirate Island may be clean, but Fairy Forest is next! Imagine if the Dragon turned into the Rainbow Ghost Dragon!?? Be sure to try Marshmallow Mode! It has infinite levels and after every 10 you unlock a new friend! Play as Monkeys, or Turtles, or maybe even Pirate Crabs! There are 30+ playable characters! This FREE game is made for kids to enjoy and is easy to learn while also fun to play. All 40+ story levels will keep you adventuring for hours. Or play infinite maps in Marshmallow Mode! There will be many updates in the future all completely free including Fairy Forest, Mermaid Bay, Unicorn Universe, and many more! As you and the clean-up crew remove the Portal Goo you'll rescue new friends you can play as! Can you complete all these challenges? - Unlock 40+ levels! - Rescue 30+ characters and their trails in Marshmallow Mode! - Defeat the Pirate Captain before PiRATE iSLAND is completely covered in Portal Goo!! As seen on Shonduras - Best Day Ever, A for Adley - Learning & Fun, and G for Gaming
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Osmo Math Wizard | Rainbow Ghost Rescue |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (181 ratings) | 4.3 (300 ratings) — better |
| Positive reviews | 37.2% of reviews | 79.8% of reviews — better |
| Number of ratings | 181 | 300 — better |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 1.8 GB | 288 MB |
| Age rating | 4+ | 4+ |
| Developer | Tangible Play | Shonduras Inc. |
Customer experience
Osmo Math Wizard
Rainbow Ghost Rescue
User reviews
Osmo Math Wizard
From 181 App Store ratingsWhat we love
- 👍 Helps with math skills
- 👍 Fun and engaging
- 👍 Good for learning
- 👍 Highly recommended
- 👍 Motivates children
Room to improve
- 🐛 Game crashes frequently
- 🐛 App freezes often
- 🐛 Login issues
- 🐛 Incorrect answers accepted
- 🐛 Progress lost
Rainbow Ghost Rescue
From 300 App Store ratingsWhat we love
- 💕 Satisfying and fun gameplay
- 👍 Visually appealing graphics
- 🎨 Colorful and creative design
- 🤩 Engaging for all ages
- 🎉 Exciting and entertaining
Room to improve
- 🐛 Occasional crashes or glitches
- 🤯 Frustrating difficulty spikes
- ⏱️ Repetitive gameplay after a while
- 🤔 Unclear or confusing instructions
Bugs and requests
Osmo Math Wizard
Reported bugs
14 issues- 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)
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- Incorrect answers not accepted
- Progress lost overnight
- Wyverdale express game broken after update
- Dragon lost its eyes after upgrade
- Cannot remove 'Joy' in Potions
- Game won't get past first animal in Potions
- App locks up after adding new games
- Cannot close activities or go back after mistakes
- Fruit Juice Team bugging out
Requested features
7 requests- Add more levels
- Add more stories/locations in Potions
- Ensure app supports newer iPads
- Add French language option
- Improve customer support responsiveness
Show 2 moreShow fewer
- Make guidebook pages reusable (dry erase)
- Add more Osmo games
Rainbow Ghost Rescue
Reported bugs
3 issues- Game freezing or closing unexpectedly
- Levels not registering as completed
- Inconsistent controls or responsiveness
Requested features
4 requests- More diverse levels and challenges
- Additional characters and customization options
- Ability to save progress and resume later
- Multiplayer or co-op game modes
In-app purchases
Osmo Math Wizard
No in-app purchases
Rainbow Ghost Rescue
No in-app purchases
Questions
Is Osmo Math Wizard free?
Is Rainbow Ghost Rescue free?
Which has better reviews, Osmo Math Wizard or Rainbow Ghost Rescue?
Do Osmo Math Wizard or Rainbow Ghost Rescue have ads?
Which is updated more often, Osmo Math Wizard or Rainbow Ghost Rescue?
Other comparisons
