# Vector Field vs Epicycles

The clearest difference is rating: Epicycles at 5.0 against Vector Field's 4.5. Epicycles also leads on update cadence (every 5 days vs every 3 months). Vector Field's advantage is ratings volume (6 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Epicycles holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

Vector Field ships an update every 3 months, Epicycles every 5 days. The most recent releases landed on July 7, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Vector Field | Epicycles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6 ratings)](https://appshunter.io/ios/app/vector-field-particle-flow/id1598282424/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/epicycles/id6450433959/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 1 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eliott Morgensztern](https://appshunter.io/developer/1478504124) | [Limit Point Software](https://appshunter.io/developer/377981570) |

## What reviewers say

### Vector Field

[App page](https://appshunter.io/ios/app/vector-field-particle-flow/id1598282424)

Visualize mathematical vector fields with animated particles in 2D, 3D, or spherical spaces. Input custom equations and adjust simulation parameters in real-time to explore dynamical systems and mathematical patterns interactively.

**Highlights:** 2D, 3D, and spherical vector field visualization, Customizable dx, dy, dz equations, Adjustable particle speed, density, and colors, Time-dependent field animation, Interactive 3D view rotation, Real-time rendering powered by Metal

**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 Vector Field free?

Vector Field 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, Vector Field or Epicycles?

Epicycles is rated higher. Vector Field averages 4.5 out of 5 from 6 ratings, while Epicycles averages 5.0 from 2 ratings.

### Do Vector Field or Epicycles have ads?

Neither Vector Field nor Epicycles shows ads.

### Which is updated more often, Vector Field or Epicycles?

Vector Field ships an update every 3 months, and Epicycles every 5 days. Most recently, Vector Field was updated on July 7, 2026 and Epicycles on June 5, 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.*