# Fibonacci Sequence vs Epicycles

The clearest difference is iOS requirement: Fibonacci Sequence at 13.3 against Epicycles's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Fibonacci Sequence ships an update every 4 days, Epicycles every 5 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Fibonacci Sequence | Epicycles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/epicycles/id6450433959/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | — | Free |
| Size | 1 MB | 4 MB |
| Requires iOS | **13.3** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Konstantinos Ladiellis](https://appshunter.io/developer/1516103440) | [Limit Point Software](https://appshunter.io/developer/377981570) |

## What reviewers say

### Fibonacci Sequence

[App page](https://appshunter.io/ios/app/fibonacci-sequence/id1660404184)

**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 Fibonacci Sequence free?

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

### Is Epicycles free?

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

### Do Fibonacci Sequence or Epicycles have ads?

Neither Fibonacci Sequence nor Epicycles shows ads.

### Which is updated more often, Fibonacci Sequence or Epicycles?

Fibonacci Sequence ships an update every 4 days, and Epicycles every 5 days. Most recently, Fibonacci Sequence was updated on October 20, 2026 and Epicycles on October 24, 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.*