# Probability Distribution vs Cepune School

The clearest difference is in-app purchases: Cepune School at none against Probability Distribution's 1. Cepune School also leads on update cadence (weekly vs every 2 weeks) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Probability Distribution sells 1 one-off in-app purchase. Cepune School asks for nothing beyond the download.

Probability Distribution ships an update every 2 weeks, Cepune School weekly. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Probability Distribution | Cepune School |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (15 ratings)](https://appshunter.io/ios/app/probability-distribution/id6447695305/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Paid | — |
| Size | 7 MB | 42 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Madiyar Aitbayev](https://appshunter.io/developer/1229466587) | [Ricardo Manco](https://appshunter.io/developer/1560024660) |

## What reviewers say

### Probability Distribution

[App page](https://appshunter.io/ios/app/probability-distribution/id6447695305)

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.

**Highlights:** Calculate probabilities, Visualize distributions, Normal (Gaussian) distribution, Binomial distribution, Poisson distribution, Exponential distribution

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Distributions | $2.99 | one-time |


### Cepune School

[App page](https://appshunter.io/ios/app/cepune-school/id6757438225)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Probability Distribution free?

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

### Is Cepune School free?

Cepune School is free to download, with no in-app purchases.

### Do Probability Distribution or Cepune School have ads?

Neither Probability Distribution nor Cepune School shows ads.

### Which is updated more often, Probability Distribution or Cepune School?

Probability Distribution ships an update every 2 weeks, and Cepune School weekly. Most recently, Probability Distribution was updated on October 12, 2026 and Cepune School on October 5, 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.*