# GraviTrax vs Simple Marble Run

GraviTrax and Simple Marble Run both sit at 4.4 stars, but that hides the real split: 74% of GraviTrax's written reviews are positive against 0% of Simple Marble Run's. GraviTrax also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Simple Marble Run's advantage is in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 5 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. GraviTrax sells 1 one-off in-app purchase. Simple Marble Run asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for GraviTrax against 4.4 for Simple Marble Run. Both are backed by a comparable volume of ratings — 148 and 238 respectively. Written reviews are what separate them: 74% of GraviTrax's written reviews are positive against 0% of Simple Marble Run's.

GraviTrax ships an update every 5 months, Simple Marble Run every 6 weeks. Both last shipped on September 25, 2026.

## The numbers

| Metric | GraviTrax | Simple Marble Run |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (148 ratings)](https://appshunter.io/ios/app/gravitrax/id1236092166/reviews) | [4.4 (238 ratings)](https://appshunter.io/ios/app/simple-marble-run/id6751544330/reviews) |
| Number of ratings | 148 | **238** |
| Positive reviews | **74.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 155 MB | 193 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ravensburger Verlag GmbH](https://appshunter.io/developer/1505283467) | [monois Inc.](https://appshunter.io/developer/498398223) |

## What reviewers say

### GraviTrax

[App page](https://appshunter.io/ios/app/gravitrax/id1236092166)

Design and experience custom ball tracks with a free editor. Explore physics principles like gravity and magnetism as you build and test your creations. Share your unique track designs with friends and discover new possibilities.

**Highlights:** Free track editor, Interactive ball rolling simulation, Multiple camera angles, Share track designs with friends, Physics-based gameplay (gravity, magnetism, kinetics), Extendable track system

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GraviTrax PRO | $0.99 | one-time |

**What reviewers like**

- 👍 Great app for marble runs
- 🚀 Unlimited pieces to build with
- 🎨 Ability to view tracks from different angles
- 💡 Potential to test real-life tracks virtually

**What reviewers complain about**

- 🐛 Bugs with certain elements like the lift and spirals
- 🔒 In-app purchase required for full functionality
- 📦 Lack of integration with physical sets owned
- 🔧 Limited customization options for track building

**Reported bugs**

- Marble gets stuck on certain track elements
- Saving and loading tracks not working properly
- Placement of clear platforms and supports is limited
- Zipline functionality not working as expected

**Requested features**

- Add more track designs and layouts
- Implement a parts inventory system
- Allow sharing and downloading of user-created tracks
- Improve UI/UX for easier track building
- Add support for new Gravitrax expansions


### Simple Marble Run

[App page](https://appshunter.io/ios/app/simple-marble-run/id6751544330)

Experience a calming marble game with customizable courses. Manipulate the flow with stoppers, pins, and throwing mechanics. Watch marbles collect and depart in a delightful cycle, offering a unique ASMR-like experience.

**Highlights:** Customizable marble courses, Interactive marble manipulation (stoppers, pins), Marble throwing mechanic, Truck collection and departure cycle, Adjustable camera viewpoints, Soothing ASMR-like experience

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GraviTrax free?

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

### Is Simple Marble Run free?

Simple Marble Run is free to download, with no in-app purchases.

### Which has better reviews, GraviTrax or Simple Marble Run?

GraviTrax and Simple Marble Run are both rated 4.4 out of 5 on the App Store, from 148 and 238 ratings respectively.

### Do GraviTrax or Simple Marble Run have ads?

Simple Marble Run shows ads; GraviTrax does not.

### Which is updated more often, GraviTrax or Simple Marble Run?

GraviTrax ships an update every 5 months, and Simple Marble Run every 6 weeks. Most recently, GraviTrax was updated on September 25, 2026 and Simple Marble Run 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.*