Comparison

iWonder AR 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

iWonder AR

Bring English learning books to life with augmented reality. Scan pages to unlock interactive videos and engage with a friendly robot character for an immersive educational experience.

Highlights
  • Augmented reality content
  • Interactive videos
  • Robot character interaction
  • Book scanning functionality
  • English language learning
Features
Read full description

iWonder AR is a AR application for Express Publishing book for learning English. Scan your book to see AR content, watch amazing videos, play with Rolo, our super cool robot!

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

iWonder AR2 screens
Merge Object Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: iWonder AR at none against Merge Object Viewer's 4. Merge Object Viewer's advantage is update cadence (monthly vs every 6 months). On price, review sentiment, ads 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

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. iWonder AR asks for nothing beyond the download.

UpkeepUpdate frequency

iWonder AR ships an update every 6 months, Merge Object Viewer monthly. Both last shipped on November 2, 2026.

Scorecard3 real differences · 7 level
iWonder AR versus Merge Object Viewer: the parameters behind the verdict, then further details
ParameteriWonder ARMerge Object Viewer
PriceFreeFree
Rating—4.5 (390 ratings) — better
Positive reviews40.0% of reviews47.6% of reviews — better
Number of ratings—390 — better
Update frequencyEvery 6 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size595 MB414 MB
Age rating4+4+
DeveloperExpress PublishingMerge Apps

Customer experience

iWonder AR

Written reviews10 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

Merge Object Viewer

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

Bugs and requests

iWonder AR

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

iWonder AR

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 iWonder AR free?
iWonder AR 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.
Do iWonder AR or Merge Object Viewer have ads?
Neither iWonder AR nor Merge Object Viewer shows ads.
Which is updated more often, iWonder AR or Merge Object Viewer?
iWonder AR ships an update every 6 months, and Merge Object Viewer monthly. Most recently, iWonder AR was updated on November 2, 2026 and Merge Object Viewer on November 2, 2026.

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