Comparison

Makeblock-Play STEM Robots vs Merge Object Viewer

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

Head to head
About

Makeblock-Play STEM Robots

Control and program robots with a user-friendly interface. Design custom controllers and explore STEM education through interactive robot play. Supports a variety of robot models and multiple languages.

Highlights
  • Robot control via official controller
  • Create custom robot controllers
  • Graphical programming for complex functions
  • User-friendly interface
  • Supports multiple Makeblock robot models
  • Multi-language support
Features
Read full description

Makeblock APP is a robot control software in smart devices. Everyone can directly control Makeblock robots using official controller in the software, or creates and programs a specific controller to achieve richer robotic functionality. Makeblock APP gives the user a way to grow. You can use the controller function to control directly, you can also drag the control to create a different multi-function console; advanced users can even programmatically through the control to achieve more complex functions. Features: -Brand New UI Design, User-Friendly Interface. -Stronger Controllability, Simpler Way to Learn STEM:STEM education becomes easy & fun as you can also master robot freely to sing, dance or light. -Create Customized Robot Controller with Graphical Programming: Realize your imagination and control your robot by simply dragging, dropping and programming the command blocks. -Supporting Makeblock Robots: Codey Rocky, MotionBlock, mBot、mBot Ranger、Airblock、Starter、Ultimate2.0 . -Multi-Language User Interface :Chinese, Traditional Chinese, English, Japanese, French, German, Spanish, Russian, Croatian,Polish,Romanian. Support: -You can visit the official website: www.makeblock.com for more information -support email: support@makeblock.cc -Support forum: we.makeblock.com

About

Merge Object Viewer

Explore hundreds of 3D digital teaching aids with this app. Students can interact with models of rocks, mammals, cells, and more. The app also allows users to upload and view their own 3D objects on a compatible device.

Highlights
  • Hundreds of 3D teaching aids
  • Interactive 3D models
  • Learn about science and biology
  • Upload and view custom 3D objects
  • Hands-on digital learning
Features
Read full description

PLEASE NOTE: This app requires a Merge Cube and a smartphone or a tablet to play. To find out how to get a Merge Cube and to learn more, visit our website at: https://www.MergeCube.com. Object Viewer puts hundreds of digital teaching aids in the palm of your hand! Students can learn about rocks and minerals, mammals, reptiles, lifecycles, cells, and so much more using different collections of hands-on 3D models. Students can also upload, view, and share their own 3D objects on the Merge Cube. If you have any questions or suggestions, we would love 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

Makeblock-Play STEM Robots4 screens
Merge Object Viewer4 screens

Verdict

The call

The clearest difference is rating: Merge Object Viewer at 4.5 against Makeblock-Play STEM Robots's 3.7. Makeblock-Play STEM Robots's advantage is in-app purchases (none vs 4) and iOS requirement (10.0 vs 15.0). On price, review sentiment, 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. Merge Object Viewer sells 4 in-app purchases, starting at $9.99 per month. Makeblock-Play STEM Robots asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Merge Object Viewer holds the better App Store score, 4.5 against 3.7. Both are backed by a comparable volume of ratings — 202 and 389 respectively. Written reviews point the same way: 47% of Makeblock-Play STEM Robots's written reviews are positive against 48% of Merge Object Viewer's.

UpkeepUpdate frequency

Makeblock-Play STEM Robots ships an update every 6 weeks, Merge Object Viewer monthly. The most recent releases landed on September 17, 2026 and September 29, 2026 respectively.

Scorecard4 real differences · 6 level
Makeblock-Play STEM Robots versus Merge Object Viewer: the parameters behind the verdict, then further details
ParameterMakeblock-Play STEM RobotsMerge Object Viewer
PriceFreeFree
Rating3.7 (202 ratings)4.5 (389 ratings) — better
Positive reviews46.6% of reviews47.6% of reviews — better
Number of ratings202389 — better
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size458 MB414 MB
Age rating4+4+
DeveloperMakeblock Co., Ltd.Merge Apps

Customer experience

Makeblock-Play STEM Robots

All ratings202 ratings
Positive66.3%
Neutral6.4%
Negative27.2%
Written reviews131 reviews
Positive46.6%
Neutral3.8%
Negative49.6%

Merge Object Viewer

All ratings389 ratings
Positive86.9%
Neutral2.1%
Negative11.1%
Written reviews105 reviews
Positive47.6%
Neutral7.6%
Negative44.8%

Bugs and requests

Makeblock-Play STEM Robots

Not enough reviews yet to summarise bugs or requests.

Merge Object Viewer

Reported bugs

4 issues
  • Objects not loading or displaying incorrectly
  • App freezing or closing unexpectedly
  • Labeling/annotation issues with 3D objects
  • Compatibility problems on iPads and older iOS versions

Requested features

5 requests
  • Adjustable lighting for 3D objects
  • Ability to snap objects together
  • Camera button for capturing scenes
  • Restore VR support
  • More free 3D content options

In-app purchases

None

Makeblock-Play STEM Robots

No in-app purchases

4 purchases

Merge Object Viewer

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

Questions

Is Makeblock-Play STEM Robots free?
Makeblock-Play STEM Robots is free to download, with no in-app purchases.
Is Merge Object Viewer free?
Merge Object Viewer is free to download, with in-app purchases available.
Which has better reviews, Makeblock-Play STEM Robots or Merge Object Viewer?
Merge Object Viewer is rated higher. Makeblock-Play STEM Robots averages 3.7 out of 5 from 202 ratings, while Merge Object Viewer averages 4.5 from 389 ratings.
Do Makeblock-Play STEM Robots or Merge Object Viewer have ads?
Neither Makeblock-Play STEM Robots nor Merge Object Viewer shows ads.
Which is updated more often, Makeblock-Play STEM Robots or Merge Object Viewer?
Makeblock-Play STEM Robots ships an update every 6 weeks, and Merge Object Viewer monthly. Most recently, Makeblock-Play STEM Robots was updated on September 17, 2026 and Merge Object Viewer on September 29, 2026.

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