# Discrete Probability vs Homework Helper

The clearest difference is in-app purchases: Discrete Probability at none against Homework Helper's 6. Discrete Probability also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Homework Helper sells 5 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, Homework Helper every 5 days. The most recent releases landed on July 17, 2026 and June 21, 2026 respectively.

## The numbers

| Metric | Discrete Probability | Homework Helper |
| --- | --- | --- |
| 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 5 days |
| Monetization | Free | — |
| Size | 9 MB | 91 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuri Morozov](https://appshunter.io/developer/1582368813) | [Serhiy Vishnyak](https://appshunter.io/developer/1874351945) |

## 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


### Homework Helper

[App page](https://appshunter.io/ios/app/homework-helper-math-solver/id6758675626)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Math Solver | $4.99 | per 7 days |
| Smart Math Solver | $6.99 | per 7 days |
| Smart Math Solver | $9.99 | per 7 days |
| Smart Math Solver | $19.99 | per month |
| Smart Math Solver | $39.99 | per year |


## Frequently asked questions

### Is Discrete Probability free?

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

### Is Homework Helper free?

Homework Helper is free to download, with in-app purchases available.

### Do Discrete Probability or Homework Helper have ads?

Neither Discrete Probability nor Homework Helper shows ads.

### Which is updated more often, Discrete Probability or Homework Helper?

Discrete Probability ships an update every 4 days, and Homework Helper every 5 days. Most recently, Discrete Probability was updated on July 17, 2026 and Homework Helper on June 21, 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.*