# Discrete Probability vs Learn While Walking

The clearest difference is in-app purchases: Discrete Probability at none against Learn While Walking's 6. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Learn While Walking sells 6 one-off in-app purchases. Discrete Probability asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on July 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Discrete Probability | Learn While Walking |
| --- | --- | --- |
| 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 4 days |
| Monetization | Free | — |
| Size | 9 MB | 7 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuri Morozov](https://appshunter.io/developer/1582368813) | [NIKLAS HOPPE](https://appshunter.io/developer/1862076431) |

## 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


### Learn While Walking

[App page](https://appshunter.io/ios/app/learn-while-walking/id6756646077)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| C1 Business (Full Pack) | $0.99 | one-time |
| C1 Medicine (Full Pack) | $0.99 | one-time |
| A2 General (Full Pack) | $0.99 | one-time |
| B1 General (Full Pack) | $0.99 | one-time |
| B2 General (Full Pack) | $0.99 | one-time |
| C2 Dogs (Full Pack) | $0.99 | one-time |


## Frequently asked questions

### Is Discrete Probability free?

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

### Is Learn While Walking free?

Learn While Walking is free to download, with in-app purchases available.

### Do Discrete Probability or Learn While Walking have ads?

Neither Discrete Probability nor Learn While Walking shows ads.

### Which is updated more often, Discrete Probability or Learn While Walking?

Discrete Probability ships an update every 4 days, and Learn While Walking every 4 days. Most recently, Discrete Probability was updated on July 17, 2026 and Learn While Walking on September 15, 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.*