Merge Object Viewer vs MARVLS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Hundreds of 3D teaching aids
- Interactive 3D models
- Learn about science and biology
- Upload and view custom 3D objects
- Hands-on digital learning
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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
MARVLS
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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
Verdict
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
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.
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.
| Parameter | Merge Object Viewer | MARVLS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (390 ratings) — better | — |
| Positive reviews | 47.6% of reviews | — |
| Number of ratings | 390 — better | — |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 414 MB | 242 MB |
| Age rating | 4+ | 9+ |
| Developer | Merge Apps | Michele 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
Merge Object Viewer
- 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
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- Merge EDU Individual14 Days trial$99.991 Year
MARVLS
No in-app purchases









