# Federgraph vs Discrete Probability

The clearest difference is update cadence: Discrete Probability at every 4 days against Federgraph's every 15 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Federgraph ships an update every 15 months, Discrete Probability every 4 days. The most recent releases landed on September 26, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Federgraph | Discrete Probability |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 29 MB | 9 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Schubert](https://appshunter.io/developer/670940970) | [Yuri Morozov](https://appshunter.io/developer/1582368813) |

## What reviewers say

### Federgraph

[App page](https://appshunter.io/ios/app/federgraph/id670940947)

**In-app purchases:** none


### 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 Federgraph free?

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

### Is Discrete Probability free?

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

### Do Federgraph or Discrete Probability have ads?

Neither Federgraph nor Discrete Probability shows ads.

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

Federgraph ships an update every 15 months, and Discrete Probability every 4 days. Most recently, Federgraph was updated on September 26, 2026 and Discrete Probability on October 13, 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.*