# Galton Board vs Binomial Probability P(X=k)

The clearest difference is in-app purchases: Galton Board at none against Binomial Probability P(X=k)'s 8. Galton Board also leads on iOS requirement (8.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Binomial Probability P(X=k) sells 8 one-off in-app purchases. Galton Board asks for nothing beyond the download.

Galton Board ships an update every 6 weeks, Binomial Probability P(X=k) every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Galton Board | Binomial Probability P(X=k) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (11 ratings)](https://appshunter.io/ios/app/galton-board-bean-machine/id1444632751/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 43 MB | 180 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [乃君 黄](https://appshunter.io/developer/1337343608) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Galton Board

[App page](https://appshunter.io/ios/app/galton-board-bean-machine/id1444632751)

Explore the principles of probability and statistics with a digital simulation of the Galton Board. Observe how balls distribute into bins, demonstrating the central limit theorem visually.

**Highlights:** Digital Galton Board simulation, Demonstrates central limit theorem, Visualizes ball distribution, Interactive physics simulation, Educational tool for statistics

**Features:** Vision Pro support

**In-app purchases:** none


### Binomial Probability P(X=k)

[App page](https://appshunter.io/ios/app/binomial-probability-pxk/id6472449007)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Lifetime Access | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Galton Board free?

Galton Board is free to download, with no in-app purchases.

### Is Binomial Probability P(X=k) free?

Binomial Probability P(X=k) is free to download, with in-app purchases available.

### Do Galton Board or Binomial Probability P(X=k) have ads?

Neither Galton Board nor Binomial Probability P(X=k) shows ads.

### Which is updated more often, Galton Board or Binomial Probability P(X=k)?

Galton Board ships an update every 6 weeks, and Binomial Probability P(X=k) every 3 weeks. Most recently, Galton Board was updated on October 24, 2026 and Binomial Probability P(X=k) on October 24, 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.*