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Galton Board App

Galton Board App

Probability Demonstrator

116 ratings
39 reviews
🎮 Games
📚 Education
Free
In-App Purchases

Details

Released
February 7, 2024
Updated
October 28, 2026

Features

Developer

Index Fund Advisors, Inc
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Galton Board App screenshot #1 for iPhone
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Galton Board App screenshot #6 for iPhone
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About

Explore probability and mathematical concepts through an interactive simulation. This app demonstrates the binomial and normal distributions using a dynamic Galton Board, with options to simulate stock market data. It's an engaging tool for learning complex theories.

✓Interactive Galton Board simulation
✓Demonstrates binomial and normal distributions
✓Stock market data simulation
✓Detailed mathematical concept explanations
✓Pause and slow-motion options
✓Gyroscope-enhanced bead movement
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What users say about Galton Board App

Reviews of Galton Board App are mostly positive: the Education app is rated 5.0/5 from 116 App Store ratings. What users like most: great for understanding bell curves, excellent educational tool. Summarized from real user reviews.

Positive things

  • 👍Great for understanding bell curves
  • 👍Excellent educational tool
  • 👍Visually appealing and well-designed
  • 👍Helpful for STEM and psychology classes
  • 👍Simplifies complex math concepts
  • 👍Interactive and fun learning
  • 👍Clear explanations and equations
  • 👍Easy and intuitive to use
  • 👍Good for visual learners
  • 👍Simulates Galton Board effectively
  • 👍Demonstrates statistical concepts naturally
  • 👍Useful for teachers and homeschoolers
  • 👍Inspiring and helpful for students
  • 👍Great for economics students
  • 👍Shows triangular numbers and Pascal's triangle
  • 👍Good for understanding market behavior
  • 👍Free to use
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+1

What's New in Galton Board App

3.3

October 28, 2026

* Support for iPhone Duo

1

Subscriptions & In-App Purchases

Free

Stock Market Data

Includes historical stock market data

User reviews

Most RecentHighest RatedLowest Rated

Beautiful representation of some of the most fascinating real world math

This app simulates a Galton board, which is a pegboard that you drop marbles through and they bounce off the pegs and fall into bins. It shows a natural appearance of the famous Bell curve from statistics, and addresses a whole bunch of other math stuff like triangular numbers and Pascal’s triangle in a natural and interesting way.

Beautifully done, could be a wonderful teacher’s aid or homeschool resource.
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BSBaiten Switch

Great product for stats student and fans

Love this product. The first time I saw a Galton Board was the the Science Museum in Flushing, NY. My mind was blown.

I am so glad that a proper digital version was created. It would be awesome if Index Fund Advisors, Inc. could bring the physical product back.
EAEJ's App

Super helpful for my class!

This app was great for helping me understand the concept of bell curves for a class I’m taking this semester! I’m glad it’s out there for students like me :)
Eemmitt687

This app helped me understand bell curves

Caden Fuentes!

Using this app I was better able to understand what a bell curve was and how to read a bell curve! I showed this app to a few of my friends who are in economics and they were just as impressed as I was on how awesome this app was! It helped me learn and studying for a test that had a few bell curves on it! Over all great app!
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BMBeast mode3737

Cool!

Math in motion? Yes, please!
PPrtuyo
See 34 more reviews

Developer apps

Index Fund Advisors
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User experience

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Requested Features

1 request

Bring back the physical product (commented by EJ's App, likely not a feature request for the app itself but a general wish)

Feature

FAQ

What is the Galton Board App?

The Galton Board App is an educational tool that simulates the Galton Board to demonstrate probability concepts like the binomial and normal distributions. It uses your device's gyroscope to create an immersive experience of beads falling through a pegged board.

How does the Galton Board App help with learning?

It provides a hands-on, visual approach to understanding complex mathematical theories such as the Central Limit Theorem and probability distributions. The app also offers detailed explanations of related concepts and allows for detailed study of bead movement.

Can the Galton Board App simulate real-world data?

Yes, it features a 'Stock Market Data' version that simulates historical monthly market returns for various index portfolios, correlating them with the binomial distribution. This helps users understand market behavior probabilities.

What mathematical concepts are explained in the Galton Board App?

The app explains probability theories, independent identically distributed (IID) random variables, regression to the mean, the law of large numbers, the random walk, and the Gambler's Fallacy, among others.

Is the Galton Board App suitable for all ages?

The app is rated '4+' and is designed to be an educational tool for statistics, math, and stock market enthusiasts. Its interactive nature makes it engaging for learners of various ages interested in these subjects.

How often is the Galton Board App updated?

The app was last updated on October 28, 2026, indicating a recent update. The developer, Index Fund Advisors, Inc., has released version 3.3, suggesting ongoing development and improvements.

What devices support the Galton Board App?

The Galton Board App is available on Mac, iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users for educational purposes.

What do users like most about the Galton Board App?

User reviews highlight its effectiveness in understanding bell curves and complex math concepts, its visually appealing design, and its interactive, fun learning experience. Users also appreciate the clear explanations and its usefulness for STEM and economics students.