Merge Object Viewer vs Balloon Drop AR
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
Balloon Drop AR
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Balloon Math turns math practice into a fast, addictive survival game. A balloon slowly drifts toward the ground — the only way to keep it airborne is to solve math problems. Every correct answer bounces it back up. Answer 10 correctly before the balloon touches down 3 times to clear each level. It's built to grow with the player: gentle enough for a young beginner learning to add, and deep enough to challenge an adult all the way to trigonometry. Features: • Simple, engaging gameplay — Solve multiple-choice problems to bounce your balloon up. Wrong answers never cost a life, so kids stay encouraged. • 10 starter levels across three tiers — Balloon Beginner, Quick Thinker, and Math Climber — with difficulty that rises gradually so it never spikes. • The Summit Journey — A 28-summit campaign, each teaching one new concept: addition, subtraction, multiplication, division, order of operations, fractions, decimals, percentages, negatives, exponents, square roots, algebra, geometry, coordinate planes, and trigonometry, differential equations, limits, calculus • Fresh challenges over time — New gameplay mechanics unlock as you climb: extra answer choices, golden bonus balloons, wind, combo streaks, and a final boss level. • Master Academy — 8 optional extreme lessons for players who conquer every summit. • Skip the basics — A quick placement test lets confident players and adults jump straight to their level. • Rewards & progression — Earn coins, collect balloon colors and backgrounds, unlock badges, and track achievements. • Detailed stats — See lifetime questions answered, balloons saved, longest streak, fastest level, accuracy, and play time. • Plays fully offline — All progress is saved on your device. No account, no internet, no ads. Perfect for kids building math confidence, students sharpening skills, and adults keeping their mental math sharp.
Screenshots
Verdict
The clearest difference is in-app purchases: Balloon Drop AR at none against Merge Object Viewer's 4. Balloon Drop AR also leads on update cadence (every 4 days vs monthly). On price, ads, device support and iOS requirement 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. Balloon Drop AR asks for nothing beyond the download.
Merge Object Viewer ships an update monthly, Balloon Drop AR every 4 days. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.
| Parameter | Merge Object Viewer | Balloon Drop AR |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (389 ratings) — better | — |
| Positive reviews | 47.6% of reviews | — |
| Number of ratings | 389 — better | — |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 414 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Merge Apps | Errold Jeffrey |
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
Balloon Drop AR
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
Balloon Drop AR
No in-app purchases
Questions
Is Merge Object Viewer free?
Is Balloon Drop AR free?
Do Merge Object Viewer or Balloon Drop AR have ads?
Which is updated more often, Merge Object Viewer or Balloon Drop AR?
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