# Discrete Probability vs Statistics & Probability Tutor

The clearest difference is in-app purchases: Discrete Probability at none against Statistics & Probability Tutor's 2. Discrete Probability also leads on update cadence (every 4 days vs every 10 days) and iOS requirement (16.6 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. Statistics & Probability Tutor sells 2 in-app purchases, starting at $4.99 per 7 days. Discrete Probability asks for nothing beyond the download.

Discrete Probability ships an update every 4 days, Statistics & Probability Tutor every 10 days. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Discrete Probability | Statistics & Probability Tutor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/discrete-probability/id6752967885/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 10 days |
| Monetization | Free | — |
| Size | 9 MB | 48 MB |
| Requires iOS | **16.6** | 18.2 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuri Morozov](https://appshunter.io/developer/1582368813) | [ByteCraft Solutions](https://appshunter.io/developer/1866155956) |

## What reviewers say

### 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


### Statistics & Probability Tutor

[App page](https://appshunter.io/ios/app/statistics-and-probability-tutor/id6767269528)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $34.99 | per year |


## Frequently asked questions

### Is Discrete Probability free?

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

### Is Statistics & Probability Tutor free?

Statistics & Probability Tutor is free to download, with in-app purchases available.

### Do Discrete Probability or Statistics & Probability Tutor have ads?

Neither Discrete Probability nor Statistics & Probability Tutor shows ads.

### Which is updated more often, Discrete Probability or Statistics & Probability Tutor?

Discrete Probability ships an update every 4 days, and Statistics & Probability Tutor every 10 days. Most recently, Discrete Probability was updated on October 13, 2026 and Statistics & Probability Tutor on October 3, 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.*