Comparison

Sphero Edu vs Merge Explorer

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

Head to head
About

Sphero Edu

This app allows users to learn and create with programmable robots. It offers multiple coding methods, from drawing paths to advanced text-based programming. Educators can manage classes and track student progress, making learning fun and interactive.

Highlights
  • Multiple programming modes (Draw, Block, Text)
  • Access sensor data via graphs
  • Pre-made STEAM lessons
  • Robot driving mode
  • Assignment creation for educators
  • Google/Clever account integration
Features
Read full description

Sphero Edu is your hub to create, contribute, and learn with Sphero robots. Go beyond code by incorporating unique STEAM lessons to complete with your bot. Designed for learner progression, Sphero Edu beginners can give robots commands by drawing a path in the app for their robot to follow. Intermediate coders can use Scratch blocks to learn more advanced logic, while pros can use text programming and write their own JavaScript or Python code. Sphero Edu is built for makers, learners, educators, and parents. The interactive platform allows you to keep track of your class or group from one easy place. Anyone can save their progress, jump from device to device, and continue the discovery from anywhere. Preparing for the future has never been so fun. SPHERO EDU FEATURES PROGRAMS: Program your bots in 3 ways with Draw, Block, and Text modes. Start with the basics and grow. SENSOR DATA: See location, accelerometer, gyroscope, velocity, and distance sensor data through visual graphs. LESSONS: Program a painting. Navigate a maze. Mimic the solar system. The only limit is your imagination. TAKE A DRIVE: Need a brain break? Set LED colors on your robot and zoom around in Drive mode. ASSIGNMENTS: Are you a teacher? Monitor progress by creating lessons and assigning them to your students. INTEGRATIONS: Simplify classroom use by signing in and syncing classrooms with Google and Clever accounts. COMPATIBILITY Supported Robots: Sphero BOLT+, Sphero BOLT, Sphero RVR/RVR+, Sphero SPRK+, Sphero SPRK Edition, Sphero 2.0, Sphero Mini, Ollie, BB-8, BB-9E, R2-D2, R2-Q5 Unsupported Robots: Sphero Original, Force Band, Lightning McQueen, Spider-Man, indi

About

Merge Explorer

Explore over 100 interactive science simulations using a smartphone and a Merge Cube. Investigate volcanoes, sharks, the solar system, and more with hands-on activities and quizzes. Ideal for K-8 students learning science at school or home.

Highlights
  • Over 100 science simulations
  • Interactive Merge Cube experiences
  • Hands-on learning activities
  • Built-in quizzes
  • NGSS-aligned K-8 curriculum
  • Physical, Life, and Earth/Space Science topics
Features
Read full description

PLEASE NOTE: This app requires a Merge Cube and a smartphone or a tablet to experience. Find out how to get a Merge Cube and learn more at: https://www.MergeCube.com. Students can learn science effectively with over 100 science simulations they can touch, hold and interact with! Merge Explorer (along with a Merge Cube) allows students to investigate a smoking volcano in the palm of their hand, examine a great white shark up close, hold and explore the solar system, dissect a frog (humanely!), and so much more. With easy-to-follow activities and built-in quizzes, students gain key knowledge while immersed in learning, both in the classroom or while remote learning at home. Merge Explorer includes NGSS-aligned topics for K-8th grade, like Physical Science, Life Science, and Earth & Space Science. If you have any questions or suggestions, we want to hear from you! Contact us at any time at support@mergeedu.com. Privacy Policy: https://MergeEdu.com/privacy-policy Terms of Use: https://MergeEdu.com/terms-of-use

Screenshots

Sphero Edu4 screens
Merge Explorer4 screens

Verdict

The call

The clearest difference is in-app purchases: Sphero Edu at none against Merge Explorer's 4. Sphero Edu also leads on rating (4.5 vs 4.1) and review sentiment (65% vs 46%). On price, update cadence, ads and monetization model 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. Merge Explorer sells 4 in-app purchases, starting at $9.99 per month. Sphero Edu asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sphero Edu holds the better App Store score, 4.5 against 4.1. That said, the two scores are not equally well evidenced: Sphero Edu has 1.5K ratings behind it against 279, so its average is the more settled of the two. Written reviews point the same way: 65% of Sphero Edu's written reviews are positive against 46% of Merge Explorer's.

UpkeepUpdate frequency

Sphero Edu ships an update every 5 weeks, Merge Explorer monthly. The most recent releases landed on October 29, 2026 and October 23, 2026 respectively.

Scorecard4 real differences · 6 level
Sphero Edu versus Merge Explorer: the parameters behind the verdict, then further details
ParameterSphero EduMerge Explorer
PriceFreeFree
Rating4.5 (1.5K ratings) — better4.1 (279 ratings)
Positive reviews65.3% of reviews — better46.2% of reviews
Number of ratings1.5K — better279
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size194 MB1.3 GB
Age rating4+4+
DeveloperSphero, Inc.Merge Apps

Customer experience

Sphero Edu

All ratings1,532 ratings
Positive86.9%
Neutral3.5%
Negative9.6%
Written reviews274 reviews
Positive65.3%
Neutral7.7%
Negative27.0%

Merge Explorer

All ratings279 ratings
Positive76.3%
Neutral7.2%
Negative16.5%
Written reviews65 reviews
Positive46.2%
Neutral10.8%
Negative43.1%

User reviews

Sphero Edu

From 1.5K App Store ratings

What we love

  • 💡 Excellent for learning to code
  • 🚀 Fun and engaging to use
  • 👍 Great for kids and adults
  • 👍 Supports various Sphero models
  • 👍 Intuitive and user-friendly interface

Room to improve

  • 🐛 Frequent connection issues
  • 🐛 Crashes and bugs after updates
  • 🔋 Battery life problems
  • 🐛 Compatibility issues with older devices
  • 🐛 Unreliable performance

Merge Explorer

From 279 App Store ratings

What we love

  • 👍 Easy for young students
  • 💡 Flexible for lesson needs
  • 🔬 Used for research and experiments
  • 💡 Introduces new content exploratorily
  • 🤩 Engaging and versatile for learning

Room to improve

  • 💰 Expensive purchase
  • 💰 Forced subscription for software
  • 💰 Cannot view software before paying
  • 💰 Money trap
  • 💰 Only for rich people

Bugs and requests

Sphero Edu

Reported bugs

4 issues
  • Programs not saving properly
  • Firmware update issues
  • Inability to connect to certain Sphero models
  • Sign-in and registration problems

Requested features

5 requests
  • Add more coding blocks and functionality
  • Improve community features and sharing
  • Restore legacy app features (e.g., free drive mode)
  • Provide better documentation and tutorials
  • Allow custom sound and light effects

Merge Explorer

Reported bugs

13 issues
  • App crashes on iPad
  • App crashes when pressing play
  • Camera not working in app
  • Black screen when using cube or camera
  • VR function broken
Show 8 more
  • VR doesn't work with iPhone XS Max
  • App crashes or loads forever
  • Problems with galactic explore
  • App has trouble recognizing the cube
  • Screen recording only records cube, not overlay
  • Words appear sideways in horizontal mode
  • Content appears incorrectly
  • App crashes

Requested features

9 requests
  • Make the app free to play
  • Add more fun things, not just learning
  • Bring back the fun apps (time bomb, block courses)
  • Allow users to create their own games for the merge cube
  • Add a way to reset quizzes for class sets of devices
Show 4 more
  • Improve functionality for remote teaching, including screen recording
  • Add more content in the future
  • Add dark mode option
  • Add advanced analytics dashboard

In-app purchases

None

Sphero Edu

No in-app purchases

4 purchases

Merge Explorer

Subscriptions4
  • Merge EDU Individual14 Days trial$9.991 Month
  • Explorer Premium Monthly14 Days trial$9.991 Month
  • Merge EDU Individual14 Days trial$99.991 Year
Show 1 more
  • Explorer Premium Annual14 Days trial$99.991 Year

Questions

Is Sphero Edu free?
Sphero Edu is free to download, with no in-app purchases.
Is Merge Explorer free?
Merge Explorer is free to download, with in-app purchases available.
Which has better reviews, Sphero Edu or Merge Explorer?
Sphero Edu is rated higher. Sphero Edu averages 4.5 out of 5 from 1.5K ratings, while Merge Explorer averages 4.1 from 279 ratings.
Do Sphero Edu or Merge Explorer have ads?
Neither Sphero Edu nor Merge Explorer shows ads.
Which is updated more often, Sphero Edu or Merge Explorer?
Sphero Edu ships an update every 5 weeks, and Merge Explorer monthly. Most recently, Sphero Edu was updated on October 29, 2026 and Merge Explorer on October 23, 2026.

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