Algodoo vs murmeli
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Algodoo
Design and experiment with realistic 2D physics simulations. Build intricate machines, create virtual science experiments, and explore cause and effect. Share your creations and discover those of others in a vibrant community.
- Create objects with shapes or free-hand drawing
- Combine components for intricate machines
- Choose and customize materials
- Simulate physics with gravity and aerodynamics
- Explore ideas through trial and error
- Build animations, contraptions, and experiments
- Access community-created scenes
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Bring your ideas to life with realistic physics in Algodoo. This creative and educational app lets you design two-dimensional scenes where objects move according to the laws of physics. See cause and effect in action and refine your builds to perfection. Algodoo is a virtual 2D construction set to enjoy the creative thrill of building fun scenes and machines. You’ll never run out of parts. You can go deeper and analyse the motion and learn about mechanical devices. Once you master the tools and principles, you can build sandbox games or mesmerising, complex simulations. • Use basic 2D geometrical shapes or the free-hand drawing tool to create objects. • Combine components like axles, springs, motors, ropes, and lasers to create intricate machines. • Choose from various materials—steel, wood, rubber, water, and helium—and customise at will. • Press “Simulate” to bring your scene to life, moving under the forces of gravity, aerodynamics, buoyancy, and more. • Use trial and error to explore ideas and perfect your inventions. • Express your imagination with vibrant colors, shapes, and textures. Looking to build animations, contraptions, marble races, moving structures, chain reactions, or virtual science experiments? With Algodoo, the possibilities for invention, creativity, and exploration are endless. With the Quick Tour and tutorial videos, you can easily learn Algodoo’s basic tools and principles. It's not just for fun— the scientific foundation of Algodoo makes it a great teaching and learning aid for exploring physics concepts, operating principles of machines, and even construction. Discover the creativity of others and get inspired for your next build by visiting the Algobox library. Access thousands of scenes created by the Algodoo community and share your own creations by signing up for an Algobox account. Algodoo offers endless fun for users of all ages. Download the app now and start building, and search for #Algodoo on YouTube or social media to explore videos showcasing imaginative creations from our global community.
murmeli
Design and build intricate marble runs with a sophisticated yet intuitive interface. This app fosters logical thinking, spatial imagination, and creativity while offering a calming experience and a sense of achievement for all ages.
- Intelligent marble run construction
- Multi-layered path design
- Promotes logical thinking
- Stimulates creative thinking
- Calming and concentration-building
- Cross-device syncing
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With murmeli you can construct intelligent & aesthetic marble runs. Thanks to the sophisticated and intuitive user interface, you can create sophisticated marble runs with multi-layered paths in a short time. In a playful way, murmeli promotes skills such as logical thinking, spatial imagination and visual perception. The countless variations on how a marble run can be built also stimulate creative thinking and problem-solving skills. At the same time, murmeli has a calming effect and promotes the ability to concentrate. Besides all these positive characteristics, murmeli regularly leads to a sense of achievement, which has a positive influence on self-confidence. Due to all these positive properties, murmeli is particularly suitable for supporting the development of cognitive abilities in children of all ages. However, murmeli is designed for people of all ages and offers exciting challenges for adults as well. murmeli is optimized for iOS, iPadOS and macOS devices. Once downloaded, murmeli is available on all these devices. Marble runs can be saved at any time and are automatically synced to all your devices.
Screenshots
Verdict
The clearest difference is price: murmeli at Free against Algodoo's $7.99. murmeli also leads on rating (4.6 vs 3.8) and device support (4 vs 1). Algodoo's advantage is in-app purchases (none vs 9) and update cadence (monthly vs every 3 months). On review sentiment, ads 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
murmeli is free to download; Algodoo costs $7.99 up front. murmeli sells 9 one-off in-app purchases. Algodoo asks for nothing beyond the download.
murmeli holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Algodoo has 878 ratings behind it against 77, so its average is the more settled of the two. Written reviews complicate that: 59% of Algodoo's written reviews are positive against 56% of murmeli's, so the app with the better star average is not the one people write more warmly about.
Algodoo ships an update monthly, murmeli every 3 months. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.
| Parameter | Algodoo | murmeli |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 3.8 (878 ratings) | 4.6 (77 ratings) — better |
| Positive reviews | 59.1% of reviews — better | 55.6% of reviews |
| Number of ratings | 878 — better | 77 |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 29 MB | 73 MB |
| Age rating | 9+ | 4+ |
| Developer | Algoryx Simulation AB | Michael Stoeckli |
Customer experience
Algodoo
murmeli
Bugs and requests
Algodoo
Reported bugs
4 issues- Scenes resetting to tutorial
- Textures and images not loading properly
- Crashes when trying to import images
- Buttons and controls not working as expected
Requested features
4 requests- Add text and scripting options on mobile
- Improve mobile UI and controls
- Implement more features from PC version
- Fix issues with account bans and deletions
murmeli
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Algodoo
No in-app purchases
murmeli
- Labyrinth$3.99
- Branching$3.99
- Parallel Start$4.99
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- Tunnel$4.99
- Connector$4.99
- Crossroad$4.99
- Double Lane$6.99
- Metro$6.99
- Acceleration$8.99









