Comparison

COJI robot vs Hello Loona

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Emoji-based programming
  • Educational games
  • Robot control (movement, sounds, screen)
  • STEM skill development
  • Problem-solving challenges
  • Memory games
Features
Read full description

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"

About

Hello Loona

Control and program a robotic pet with this app. Explore various scenarios, perform talents, play games, and connect with other users in the community.

Highlights
  • Robot control
  • Programming software
  • Talent shows
  • Play games
  • Community interaction
Features
Read full description

Loona APP is a mobile control and programming software developed for Loona robots. Rich robot application scenarios are provided in the application. Users can experience various robot control and functions by connecting robots according to software guidance. The robot can be controlled in the APP to perform talent shows, play small games, and also enter the community to communicate with other users.

Screenshots

COJI robot4 screens
Hello Loona2 screens

Verdict

The call

COJI robot and Hello Loona both sit at 4.1 stars, but that hides the real split: 62% of Hello Loona's written reviews are positive against 40% of COJI robot's. COJI robot's advantage is iOS requirement (9.0 vs 13.0). On price, rating, ratings volume and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Hello Loona holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 103 and 237 respectively. Written reviews point the same way: 40% of COJI robot's written reviews are positive against 62% of Hello Loona's.

UpkeepUpdate frequency

COJI robot ships an update monthly, Hello Loona every 5 weeks. The most recent releases landed on October 16, 2026 and October 21, 2026 respectively.

Scorecard2 real differences · 8 level
COJI robot versus Hello Loona: the parameters behind the verdict, then further details
ParameterCOJI robotHello Loona
PriceFreeFree
Rating4.1 (103 ratings)4.3 (237 ratings) — better
Positive reviews40.0% of reviews62.2% of reviews — better
Number of ratings103237 — better
Update frequencyMonthly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size139 MB212 MB
Age rating4+4+
DeveloperWowWee Group LimitedBeijing KEYi Technology Co., Ltd.

Customer experience

COJI robot

Written reviews45 reviews
Positive40.0%
Neutral8.9%
Negative51.1%

Hello Loona

All ratings233 ratings
Positive79.8%
Neutral2.6%
Negative17.6%
Written reviews74 reviews
Positive62.2%
Neutral6.8%
Negative31.1%

User reviews

COJI robot

From 103 App Store ratings

What 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

Hello Loona

From 237 App Store ratings

What we love

  • 🤖 Intelligent AI with ChatGPT integration
  • 🎮 Engaging games and interactive features
  • 🎨 Creative capabilities like drawing
  • 🏃 Autonomous navigation and movement
  • 📱 Helpful companion app functionality

Room to improve

  • 🐛 Frequent app crashes and bugs
  • 📱 Poor app UI/UX design
  • 🔌 WiFi connectivity issues
  • ⚙️ Clunky robot movements
  • 🔋 Fast battery drain

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 more
  • 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 more
  • Real word text chat with robot response
  • Add back 'long run' game

Hello Loona

Reported bugs

14 issues
  • App registration verification code not sending
  • Email registration failing
  • QR code scanner unable to focus
  • WiFi connection timeouts and bad gateway errors
  • App forces landscape mode only
Show 9 more
  • Keyboard covers registration buttons
  • App signs users out unexpectedly
  • App requires reinstalling to function
  • Server connection timeouts
  • Robot wheels not turning after minimal use
  • Robot stares at walls instead of following
  • Game ball breaks within days
  • Charging station malfunction
  • Robot making noises when powered off

Requested features

12 requests
  • More games and interactive content
  • Spanish language support
  • Turkish language support
  • Adult-friendly app interface version
  • Camera/photo capture feature
Show 7 more
  • Alarm and wake-up scheduling
  • Customizable behavior schedules
  • Pet interaction capabilities
  • Sleep/rest mode functionality
  • Improved voice command integration
  • Multiple variable types in programming tool
  • Landscape mode toggle for app

In-app purchases

None

COJI robot

No in-app purchases

None

Hello Loona

No in-app purchases

Questions

Is COJI robot free?
COJI robot is free to download, with no in-app purchases.
Is Hello Loona free?
Hello Loona is free to download, with no in-app purchases.
Which has better reviews, COJI robot or Hello Loona?
Hello Loona is rated higher. COJI robot averages 4.1 out of 5 from 103 ratings, while Hello Loona averages 4.3 from 237 ratings.
Do COJI robot or Hello Loona have ads?
Neither COJI robot nor Hello Loona shows ads.
Which is updated more often, COJI robot or Hello Loona?
COJI robot ships an update monthly, and Hello Loona every 5 weeks. Most recently, COJI robot was updated on October 16, 2026 and Hello Loona on October 21, 2026.

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