COJI robot vs Sphero Play
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
COJI robot
This app teaches children programming basics using emojis and interactive games. Kids can control a robot's actions, solve puzzles, and develop STEM skills through fun, engaging challenges.
- Emoji-based programming
- Educational games
- Robot control (movement, sounds, screen)
- STEM skill development
- Problem-solving challenges
- Memory games
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Learn to code with Coji - the app-enabled robot who teaches your child the basics of programming with a smile =). "Perfect for early readers and pre-readers, Coji uses a language that everyone knows - Emojis! Kids will laugh along with Coji as they play a variety of educational games that introduce coding concepts such as command sequences and conditionals. Your children will also have fun using the app to control Coji's actions - including movement, sounds, and selecting smiley faces and other emojis that will appear on Coji's screen. Parents will appreciate the emphasis on early STEM skill development, problem-solving, and memory challenges. ""...a cute robot that responds to your commands"" - GeekDad ""the cutest coding toy in development [...] combines emojis and coding so that kids 4+ can program the robot to both move and do things such as enjoy a hamburger emoji"" - Parents.com ""The robot is also responsive to real world tilting and shaking making it fun even for those without a smartphone in hand."" - Huffington Post" The COJI app includes multiple educational game modes: MACRO MAZE Drag and drop emoji commands to direct Coji's digital avatar through a maze. The COJI robot will guide your child along the way with his funny reactions and positive reinforcement." SEQUENCE SAYS COJI tests your child memory by flashing a series of emojis on his face. Match the icons in the correct order to win, and watch COJI celebrate." COMMAND CENTER Record and play back functions by bopping COJI on the head... or turn your smart device into a remote control and simply drive COJI around." LOOP RUN A loop is a sequence that is repeated. In Loop Run you navigate COJI through a world which is a repeating loop. How to play: - Download the app and turn on your Coji - Open the app and choose your Coji robot - Select the game you want to play" App requires Coji robot Learn more: wowwee.com/coji Troubleshooting: wowweezone.com"
Sphero Play
Control and play with various Sphero robots using a single application. Explore multiple drive modes, engage in robot-controlled games, and learn basic programming through a block-based interface.
- Multiple drive modes (joystick, tilt, voice)
- Robot-controlled games
- Block Drive programming
- Sports-themed drive modes
- Voice control
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Drive and play games from ONE app with your Sphero Mini, Sphero 2.0, SPRK, SPRK+, BOLT, and BOLT+. Connect and control your robots with several exciting drive modes, use your robot as a controller to play games, or try out Block Drive for an intro to programming with colorful blocks. Features include: DRIVE MODES Drive your robots several ways with the Sphero Play app. Use the joystick and slingshot controls, tilt your device, or use your voice. Our sports-themed drive modes keep things fun with the ability to swing your device to "golf"*, or flick to "kick" your robot. BLOCK DRIVE PROGRAMMING Learn programming basics by controlling your robot with colorful movement and light blocks. GAMES Use your robot as a controller to shoot your way through space, race your vehicle through a tunnel avoiding obstacles and scoring points, or rotate your ball to destroy a polygon of bricks. Need robots? We know a guy. Visit sphero.com and order today. *This mode is not available on iPads.
Screenshots
Verdict
The clearest difference is rating: Sphero Play at 4.8 against COJI robot's 4.1. Sphero Play also leads on review sentiment (69% vs 40%) and ratings volume (37K vs 103). COJI robot's advantage is iOS requirement (9.0 vs 15.0). On price, update cadence, ads 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.
Sphero Play holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: Sphero Play has 37K ratings behind it against 103, so its average is the more settled of the two. Written reviews point the same way: 40% of COJI robot's written reviews are positive against 69% of Sphero Play's.
COJI robot ships an update monthly, Sphero Play every 2 months. The most recent releases landed on October 16, 2026 and October 23, 2026 respectively.
| Parameter | COJI robot | Sphero Play |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (103 ratings) | 4.8 (37K ratings) — better |
| Positive reviews | 40.0% of reviews | 69.1% of reviews — better |
| Number of ratings | 103 | 37K — better |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 139 MB | 193 MB |
| Age rating | 4+ | 4+ |
| Developer | WowWee Group Limited | Sphero, Inc. |
Customer experience
COJI robot
Sphero Play
User reviews
COJI robot
From 103 App Store ratingsWhat we love
- 🤩 Fun and engaging toy
- 👍 Easy to use
- 💡 Educational aspects
- 🤖 Cute robot design
- 🕹️ Retro games included
Room to improve
- 🐛 App crashes frequently
- ❌ Connection issues
- 🔌 QR code issues
- 📱 Incompatible with older devices
- 🐌 Slow performance
Sphero Play
From 37K App Store ratingsWhat we love
- 🚀 Fun and engaging app
- 👍 Great controls and customization
- 🎮 Enjoyable games and activities
- 💡 Compatibility with multiple Sphero products
Room to improve
- 🐛 Occasional connectivity issues
- 🔧 Limited features compared to older apps
- 🔋 Concerns about battery life and durability
Bugs and requests
COJI robot
Reported bugs
12 issues- Emojis not displaying correctly
- App crashes
- Robot not connecting via Bluetooth
- QR code link expired
- App freezes
Show 7 moreShow fewer
- Sequencing not working
- Drive mode stops randomly
- App resets to opening screen
- Robot not recognized by app
- App crashes on iPad mini
- Cannot install app on iPad 2
- QR code exceeded
Requested features
7 requests- More unlockable emojis
- Remote control support for RC mode
- More coding games
- Ability to disable certain games/features
- Camera in driving section
Show 2 moreShow fewer
- Real word text chat with robot response
- Add back 'long run' game
Sphero Play
Reported bugs
2 issues- Joystick controls not working as expected
- Alignment issues causing unexpected movement
Requested features
4 requests- More games and activities
- Support for additional Sphero products (e.g. Ollie, BB-8)
- Improved aiming and control precision
- Camera integration to see the Sphero's view
In-app purchases
COJI robot
No in-app purchases
Sphero Play
No in-app purchases









