# Galton Board — Probability theory simulator

> Educational simulation of Galton board for probability theory and chance. (iPhone/iPad app by Edwin Veger.)

- Source: https://appshunter.io/ios/app/galton-board/id1419746563 (this page in markdown: same URL + `.md`)
- Developer: [Edwin Veger](https://appshunter.io/developer/1025412576)
- Category: Education, Entertainment
- Price: Free
- Rating: 4.70/5 from 43 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 8 MB
- Languages: American English, Dutch
- Released: 2018-09-05
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/galton-board/id1419746563/reviews.md

## What is Galton Board?

Originally conceived in 1894 by Galton, the board consists of countless balls traversing down through a maze of pins. At every pin, they have a single choice: go left or right.
Although the possibilities seem limitless, a pattern soon emerges. But how does this really work?

This app is a simulation of the famous Galton board and is intended for educational purposes. You can adjust the board size, and send over a thousand balls bouncing down the board. On iPad you can even run multiple simulations simultaneously with multiple windows.

The results are visualized by a bar chart. The Galton Board is closely related to Pascal's Triangle, Newton's binomium and probability theory in general.

For experiment fidelity and performance, the balls do not collide with each other.

I hope this app helps people grasp chance at least a little bit better.
Love the app, or have improvements/suggestions? Let me know!

## Key features

- Galton board simulation
- Adjustable board size
- Simulate over a thousand balls
- Bar chart visualization of results
- Educational tool for probability
- Related to Pascal's Triangle

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/galton-board/id1419746563/reviews.md

### 5/5 — Excellent Galton Board App

*2024-05-26*

This app is fun to use because you can vary the number of rows and the number of beads. I especially like seeing the exact number of beads in each bin so I can look at the statistical variation from cycle to cycle. I would like to see a repeat button added so I would not have to reenter the number of beads every time. Having a 1000 bead button would also be convenient for running a many bead simulation. The app seems to produce the Pascal’s triangle bead bin probabilities very well. The random number generator appears to have a random offset so each run of the app produces different results. Would you comment on the random number generator you use? Great app! Thank you!

### 1/5 — Please fix the math! It’s misprogrammed but love the idea!

*2024-04-22*

I want to give this app five stars, but after 20 trials, it’s incredibly clear that it has been misprogrammed. for example, you will always see a higher number than expected of balls on the outside, which should average out to 1/8, 1/16, 1/32, 1/64 depending on how many rows.

**Developer response:** Hi Dan, thank you for bringing this to my attention. I was able to reproduce the issue, and it has been resolved in the latest release. 
- Edwin

### 5/5 — Very nice

*2023-12-22*

Good representation of the theory.

### 5/5 — Love this app!!

*2023-09-30*

This app is so simple and easy to use. It’s fun. My only suggestion is if stationary at the bottom of each of the columns if there would also be a percentage (00.00%) of the total.

### 1/5 — Tedious gimmick

*2018-12-25*

Why in the world wasn't this app written so we can EASILY enter ANY NUMBER?

**Developer response:** Hi tabaks, thanks for your feedback. In the next release, you can tap the top number to manually enter any amount.

## Frequently asked questions about Galton Board

### What is the Galton Board app?

The Galton Board app is a simulation of the famous Galton board, designed for educational purposes. It allows users to visualize probability theory by sending balls through a maze of pins and observing the resulting distribution.

### How does the Galton Board app help with learning?

It helps users grasp concepts of chance and probability by demonstrating how a large number of random events can lead to predictable patterns, similar to Pascal's Triangle. Users can adjust parameters to see how they affect the outcome.

### What are the key features of the Galton Board app?

Key features include adjustable board size, the ability to simulate over a thousand balls, and a bar chart visualization of the results. It also offers multi-window simulations on iPad.

### Is the Galton Board app free to use?

Yes, the Galton Board app is completely free to download and use. It does not feature any in-app purchases or advertisements.

### What devices is the Galton Board app compatible with?

The Galton Board app is available for both iPhone and iPad devices, offering a versatile learning experience across Apple's mobile platforms.

### How often is the Galton Board app updated?

The app was last updated on October 8, 2025, to version 2.2. This indicates a commitment to maintaining and potentially improving the application over time.

### What is the age rating for the Galton Board app?

The Galton Board app has an age rating of 4+, making it suitable for young learners and children interested in exploring basic probability concepts.

### Does the Galton Board app have ads?

No, the Galton Board app is ad-free. This provides an uninterrupted educational experience for users focused on learning probability theory.

## Version history (last 5 releases)

### 2.2 — 2025-10-08

The board has been updated for Liquid Glass.

### 2.0.1 — 2024-04-28

We've polished the balls, so they zoom down the board smoother than ever.

### 2.0.0 — 2024-04-22

With a brand-new design, Galton Board looks better than ever.

### 1.1.0 — 2021-07-02

We've added support on iPad for multiple windows. This means you can now run multiple simulations side by side.

### 1.0.5 — 2021-06-26

We've added support for more screen sizes. On iPad the app can now run side by side with other apps.

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## More apps by Edwin Veger

- [Vacation Time Puzzles](https://appshunter.io/ios/app/vacation-time-puzzles/id1025412577)
- [The Matrix Mentor](https://appshunter.io/ios/app/the-matrix-mentor/id6479958283)

All apps by Edwin Veger: https://appshunter.io/developer/1025412576

## Related topics

[galton board app](https://appshunter.io/ios/topics/galton-board-app) · [galton board](https://appshunter.io/ios/topics/galton-board)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*