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
Explore plasma physics concepts with interactive augmented reality models. Visualize and manipulate these models using your phone and a downloadable Merge Cube. Navigate through various topics and bring complex scientific ideas to life.
- Augmented reality models
- Plasma physics concepts
- Merge Cube integration
- Interactive visualization
- Topic navigation
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View augmented reality models of plasma physics concepts through your phone. You'll need a Merge Cube (downloadable from the internet). Click on different button to navigate to different topics. Tap the camera icon and point your camera towards the Merge Cube to visualize and interact with our MARVLS.
Screenshots
Verdict
The clearest difference is review sentiment: MARVLS at 100% against Merge Object Viewer's 48%. MARVLS also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 4). Merge Object Viewer's advantage is ratings volume (389 vs 2) and update cadence (monthly vs every 5 months). 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.
MARVLS holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Merge Object Viewer has 389 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 48% of Merge Object Viewer's written reviews are positive against 100% of MARVLS's.
Merge Object Viewer ships an update monthly, MARVLS every 5 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.
| Parameter | Merge Object Viewer | MARVLS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (389 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 47.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 389 — better | 2 |
| Update frequency | Monthly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18 |
| Further details — not scored | ||
| Size | 414 MB | 210 MB |
| Age rating | 4+ | 4+ |
| Developer | Merge Apps | Michele McColgan |
Customer experience
Merge Object Viewer
MARVLS
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
Questions
Is Merge Object Viewer free?
Is MARVLS free?
Which has better reviews, Merge Object Viewer or MARVLS?
Do Merge Object Viewer or MARVLS have ads?
Which is updated more often, Merge Object Viewer or MARVLS?
Other comparisons
