# Epicycles vs Mad Func

The clearest difference is in-app purchases: Epicycles at none against Mad Func's 1. Epicycles also leads on iOS requirement (15.0 vs 18.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Mad Func sells 1 in-app purchase, starting at $2.99 per 7 days. Epicycles asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Epicycles against 5.0 for Mad Func. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Epicycles ships an update every 5 days, Mad Func every 3 days. The most recent releases landed on September 21, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Epicycles | Mad Func |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/epicycles/id6450433959/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/mad-func/id6747051739/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 28 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Limit Point Software](https://appshunter.io/developer/377981570) | [Gina De La Rosa](https://appshunter.io/developer/1315362641) |

## What reviewers say

### Epicycles

[App page](https://appshunter.io/ios/app/epicycles/id6450433959)

Explore the visualization of complex Fourier series through interactive epicycles. Create and analyze approximations of parametric curves and complex functions. Save animations and export custom terms for later use.

**Highlights:** Visualize Fourier series of 2D functions, Create epicycles from drawn curves, Save custom terms to documents, Export animations as GIFs, Adjust time and number of terms, Interactive graphic elements

**Features:** macOS Compatibility

**In-app purchases:** none


### Mad Func

[App page](https://appshunter.io/ios/app/mad-func/id6747051739)

Learn algorithms and coding concepts through interactive, gamified challenges. Solve puzzles by arranging code blocks, debug issues, and tackle system design problems. Track your progress and prepare for interviews or strengthen your computer science fundamentals.

**Highlights:** Gamified algorithm puzzles, Interactive debugging, System design challenges, Multi-language support, Progress tracking dashboard, Weekly new challenges

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mad Func Pro | $2.99 | per 7 days |


## Frequently asked questions

### Is Epicycles free?

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

### Is Mad Func free?

Mad Func is free to download, with in-app purchases available.

### Which has better reviews, Epicycles or Mad Func?

Epicycles and Mad Func are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Epicycles or Mad Func have ads?

Neither Epicycles nor Mad Func shows ads.

### Which is updated more often, Epicycles or Mad Func?

Epicycles ships an update every 5 days, and Mad Func every 3 days. Most recently, Epicycles was updated on September 21, 2026 and Mad Func on October 2, 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.*