# Algodoo vs murmeli

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.

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.

## The numbers

| Metric | Algodoo | murmeli |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [3.8 (878 ratings)](https://appshunter.io/ios/app/algodoo/id616064935/reviews) | **[4.6 (77 ratings)](https://appshunter.io/ios/app/murmeli/id1487373428/reviews)** |
| Number of ratings | **878** | 77 |
| Positive reviews | **59.1% of reviews** | 55.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 73 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 9+ | 4+ |
| Developer | [Algoryx Simulation AB](https://appshunter.io/developer/464050548) | [Michael Stoeckli](https://appshunter.io/developer/368788110) |

## What reviewers say

### Algodoo

[App page](https://appshunter.io/ios/app/algodoo/id616064935)

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.

**Highlights:** 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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great physics simulation
- 👍 Interesting and fun to use
- 💡 Ability to create and share creations
- 🚀 No ads

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🐛 Issues with loading and saving scenes
- 🐛 Textures and images not working properly
- 🐛 Laggy performance with complex scenes

**Reported bugs**

- 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**

- 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

[App page](https://appshunter.io/ios/app/murmeli/id1487373428)

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.

**Highlights:** Intelligent marble run construction, Multi-layered path design, Promotes logical thinking, Stimulates creative thinking, Calming and concentration-building, Cross-device syncing

**Features:** Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Labyrinth | $3.99 | one-time |
| Branching | $3.99 | one-time |
| Parallel Start | $4.99 | one-time |
| Tunnel | $4.99 | one-time |
| Connector | $4.99 | one-time |
| Crossroad | $4.99 | one-time |
| Double Lane | $6.99 | one-time |
| Metro | $6.99 | one-time |
| Acceleration | $8.99 | one-time |


## Frequently asked questions

### Is Algodoo free?

Algodoo costs $7.99, with no in-app purchases.

### Is murmeli free?

murmeli is free to download, with in-app purchases available.

### Which has better reviews, Algodoo or murmeli?

murmeli is rated higher. Algodoo averages 3.8 out of 5 from 878 ratings, while murmeli averages 4.6 from 77 ratings.

### Do Algodoo or murmeli have ads?

Neither Algodoo nor murmeli shows ads.

### Which is updated more often, Algodoo or murmeli?

Algodoo ships an update monthly, and murmeli every 3 months. Most recently, Algodoo was updated on October 2, 2026 and murmeli on September 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*