Osmo World vs Rainbow Ghost Rescue
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Osmo World
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.
- Launch Osmo games
- Explore game library
- Win collectible stickers
- Hands-on learning
- Promotes creativity
- Encourages problem-solving
- Fosters social interaction
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This is the home for Osmo! Launch into Osmo to explore all your favorite Osmo games, and win collectible stickers along the way. Osmo is connecting over 1 million kids around the world to a new healthy, hands-on learning experience that promotes creativity, problem-solving, and social interaction. Find out more at www.playosmo.com
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 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 (1.3K vs 300). On price, ads, in-app purchases and device support 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 — 1.3K and 300 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 September 27, 2026 and September 24, 2026 respectively.
| Parameter | Osmo World | Rainbow Ghost Rescue |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (1.3K ratings) | 4.3 (300 ratings) — better |
| Positive reviews | 42.3% of reviews | 79.8% of reviews — better |
| Number of ratings | 1.3K — better | 300 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 347 MB | 288 MB |
| Age rating | 4+ | 4+ |
| Developer | Tangible Play | Shonduras Inc. |
Customer experience
Osmo World
Rainbow Ghost Rescue
User reviews
Osmo World
From 1.3K App Store ratingsWhat we love
- 👍 Fun and educational
- 🤩 Nostalgic and engaging
- 🎨 Creative expression
- 🕹️ Variety of mini-games
Room to improve
- 🐛 Compatibility issues with newer devices
- 🔒 Difficult login/account management
- 💸 Expensive with additional purchases required
- 🔧 Glitchy and buggy performance
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 World
Reported bugs
4 issues- App crashes or freezes
- Camera recognition problems
- Saved progress/data loss
- Incompatibility with certain iPad models
Requested features
4 requests- More game content and updates
- Improved account/progress syncing
- Simplified setup and onboarding
- Better support for newer hardware
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 World
No in-app purchases
Rainbow Ghost Rescue
No in-app purchases
Questions
Is Osmo World free?
Is Rainbow Ghost Rescue free?
Which has better reviews, Osmo World or Rainbow Ghost Rescue?
Do Osmo World or Rainbow Ghost Rescue have ads?
Which is updated more often, Osmo World or Rainbow Ghost Rescue?
Other comparisons
