Galton Board vs Probability Distribution
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Galton Board
Explore probability theory with a simulation of the classic Galton board. Adjust board size, send numerous balls through a pin maze, and observe emergent patterns visualized in a bar chart. Ideal for educational purposes, it helps grasp concepts of chance and their relation to Pascal's Triangle.
- 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
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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!
Probability Distribution
This app allows users to calculate probabilities and visualize various continuous and discrete probability distributions. It supports a wide range of common distributions and plans to add more in the future.
- Calculate probabilities
- Visualize distributions
- Normal (Gaussian) distribution
- Binomial distribution
- Poisson distribution
- Exponential distribution
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Calculate probabilities and visualize probability distributions. Supported continuous probability distributions: - Normal (Gaussian) - t (Student's t) - Chi-Squared - F - Exponential - Gamma - Beta - Log-normal Supported discrete probability distributions: - Binomial - Poisson - Pascal - Geometric - Hypergeometric and more are coming.
Screenshots
Verdict
The clearest difference is in-app purchases: Galton Board at none against Probability Distribution's 1. Galton Board also leads on review sentiment (60% vs 33%). Probability Distribution's advantage is update cadence (every 2 weeks vs every 3 months). On price, rating, ratings volume and ads 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
Both are free to download. Probability Distribution sells 1 one-off in-app purchase. Galton Board asks for nothing beyond the download.
Galton Board holds the better App Store score, 4.6 against 4.5. Both are backed by a comparable volume of ratings — 44 and 15 respectively. Written reviews point the same way: 60% of Galton Board's written reviews are positive against 33% of Probability Distribution's.
Galton Board ships an update every 3 months, Probability Distribution every 2 weeks. Both last shipped on October 24, 2026.
| Parameter | Galton Board | Probability Distribution |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (44 ratings) — better | 4.5 (15 ratings) |
| Positive reviews | 60.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 44 — better | 15 |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 8 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Edwin Veger | Madiyar Aitbayev |
Customer experience
Galton Board
Probability Distribution
In-app purchases
Galton Board
No in-app purchases
Probability Distribution
- Unlock All Distributions$2.99
Questions
Is Galton Board free?
Is Probability Distribution free?
Which has better reviews, Galton Board or Probability Distribution?
Do Galton Board or Probability Distribution have ads?
Which is updated more often, Galton Board or Probability Distribution?
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