Comparison

Merge Object Viewer vs MARVLS

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

Head to head
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

About

MARVLS

Features
Read full description

Augmented Reality Models of topics in the first semester of a physics course including vectors, centroids, forces, impulse, momentum, projectiles, circular motion, torque, right-hand rule, and simple harmonic motion. You'll need a Merge Cube ( link included to download from the internet). Click on different button to navigate to different topics. Click on View in AR to view the model. Hold the Merge cube so that your camera can see it well. Move the cube around until you see the model. Click on the buttons to interact with the model. Click the back button to get back to the info screens or to the main screen.

Screenshots

Merge Object Viewer4 screens
MARVLS4 screens

Verdict

The call

The clearest difference is in-app purchases: MARVLS at none against Merge Object Viewer's 4. Merge Object Viewer's advantage is update cadence (monthly vs every 4 months) and device support (3 vs 1). On price and ads 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. MARVLS asks for nothing beyond the download.

UpkeepUpdate frequency

Merge Object Viewer ships an update monthly, MARVLS every 4 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
Merge Object Viewer versus MARVLS: the parameters behind the verdict, then further details
ParameterMerge Object ViewerMARVLS
PriceFreeFree
Rating4.5 (390 ratings) — better—
Positive reviews47.6% of reviews—
Number of ratings390 — better—
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size414 MB242 MB
Age rating4+9+
DeveloperMerge AppsMichele McColgan

Bugs and 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

MARVLS

Not enough reviews yet to summarise bugs or requests.

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
None

MARVLS

No in-app purchases

Questions

Is Merge Object Viewer free?
Merge Object Viewer is free to download, with in-app purchases available.
Is MARVLS free?
MARVLS is free to download, with no in-app purchases.
Do Merge Object Viewer or MARVLS have ads?
Neither Merge Object Viewer nor MARVLS shows ads.
Which is updated more often, Merge Object Viewer or MARVLS?
Merge Object Viewer ships an update monthly, and MARVLS every 4 months. Most recently, Merge Object Viewer was updated on November 2, 2026 and MARVLS on October 27, 2026.

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