# TUM interactive vs Epicycles

The clearest difference is ratings volume: TUM interactive at 37 against Epicycles's 2. TUM interactive also leads on iOS requirement (8.0 vs 15.0). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for TUM interactive against 5.0 for Epicycles. That said, the two scores are not equally well evidenced: TUM interactive has 37 ratings behind it against 2, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 16, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | TUM interactive | Epicycles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (37 ratings)](https://appshunter.io/ios/app/tum-interactive/id1368776187/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/epicycles/id6450433959/reviews)** |
| Number of ratings | **37** | 2 |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | Free | Free |
| Size | 139 MB | 4 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [science-to-touch](https://appshunter.io/developer/534529879) | [Limit Point Software](https://appshunter.io/developer/377981570) |

## What reviewers say

### TUM interactive

[App page](https://appshunter.io/ios/app/tum-interactive/id1368776187)

Explore science through interactive animations, simulations, games, and puzzles. This app offers an entertaining and educational journey through 14 university faculties, covering topics from virtual wind tunnels to the universe.

**Highlights:** Interactive walk through 14 faculties, Animations, simulations, games, and puzzles, Virtual wind tunnels, Simulated swarms and car traffic, Codebreaker challenges, Chemical labs, Universe exploration

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is TUM interactive free?

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

### Is Epicycles free?

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

### Which has better reviews, TUM interactive or Epicycles?

Epicycles is rated higher. TUM interactive averages 4.9 out of 5 from 37 ratings, while Epicycles averages 5.0 from 2 ratings.

### Do TUM interactive or Epicycles have ads?

Neither TUM interactive nor Epicycles shows ads.

### Which is updated more often, TUM interactive or Epicycles?

TUM interactive ships an update every 5 days, and Epicycles every 5 days. Most recently, TUM interactive was updated on October 16, 2026 and Epicycles on September 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.*