# Probability Distribution vs Discrete Probability

The clearest difference is rating: Discrete Probability at 5.0 against Probability Distribution's 4.5. Discrete Probability also leads on in-app purchases (none vs 1) and update cadence (every 4 days vs every 2 weeks). Probability Distribution's advantage is ratings volume (15 vs 3). On price, ads, device support and iOS requirement there is nothing between them.

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

Discrete Probability holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Probability Distribution has 15 ratings behind it against 3, so its average is the more settled of the two.

Probability Distribution ships an update every 2 weeks, Discrete Probability every 4 days. The most recent releases landed on September 9, 2026 and July 17, 2026 respectively.

## The numbers

| Metric | Probability Distribution | Discrete Probability |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (15 ratings)](https://appshunter.io/ios/app/probability-distribution/id6447695305/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/discrete-probability/id6752967885/reviews)** |
| Number of ratings | **15** | 3 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Paid | **Free** |
| Size | 7 MB | 9 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Madiyar Aitbayev](https://appshunter.io/developer/1229466587) | [Yuri Morozov](https://appshunter.io/developer/1582368813) |

## 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 |


### Discrete Probability

[App page](https://appshunter.io/ios/app/discrete-probability/id6752967885)

This app provides a comprehensive tool for learning and calculating discrete probability distributions. It includes formulas with derivations, visual tools like histograms, and descriptions of optimized computation methods. It covers general concepts and several specific distributions.

**Highlights:** User-friendly calculator, Formulas with derivations, Exportable formulas (image/LaTeX), Optimized computation methods, Histograms and visual tools, General concepts and specific distributions

**In-app purchases:** none


## Frequently asked questions

### Is Probability Distribution free?

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

### Is Discrete Probability free?

Discrete Probability is free to download, with no in-app purchases.

### Which has better reviews, Probability Distribution or Discrete Probability?

Discrete Probability is rated higher. Probability Distribution averages 4.5 out of 5 from 15 ratings, while Discrete Probability averages 5.0 from 3 ratings.

### Do Probability Distribution or Discrete Probability have ads?

Neither Probability Distribution nor Discrete Probability shows ads.

### Which is updated more often, Probability Distribution or Discrete Probability?

Probability Distribution ships an update every 2 weeks, and Discrete Probability every 4 days. Most recently, Probability Distribution was updated on September 9, 2026 and Discrete Probability on July 17, 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.*