# Epicycles vs Virtual Grellman

The clearest difference is in-app purchases: Epicycles at none against Virtual Grellman's 1. Epicycles also leads on update cadence (every 5 days vs every 5 weeks). Virtual Grellman's advantage is iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Virtual Grellman sells 1 one-off in-app purchase. 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 Virtual Grellman. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Epicycles ships an update every 5 days, Virtual Grellman every 5 weeks. The most recent releases landed on September 21, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Epicycles | Virtual Grellman |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/epicycles/id6450433959/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/virtual-grellman/id6462698651/reviews) |
| Number of ratings | 2 | 2 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 36 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Limit Point Software](https://appshunter.io/developer/377981570) | [Xante Corporation](https://appshunter.io/developer/1476279304) |

## 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


### Virtual Grellman

[App page](https://appshunter.io/ios/app/virtual-grellman/id6462698651)

This educational software helps users identify and attribute large cents by comparing photos. It provides detailed information on rarity, die pairings, and die states, along with collection tracking across devices.

**Highlights:** Photo-based coin attribution, Rarity ratings, Die pairing information, Die state details, DRNs for late date varieties, Collection tracking, Cross-device synchronization

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dates 1793-1857 | $119.00 | one-time |


## Frequently asked questions

### Is Epicycles free?

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

### Is Virtual Grellman free?

Virtual Grellman is free to download, with in-app purchases available.

### Which has better reviews, Epicycles or Virtual Grellman?

Epicycles and Virtual Grellman are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Epicycles or Virtual Grellman have ads?

Neither Epicycles nor Virtual Grellman shows ads.

### Which is updated more often, Epicycles or Virtual Grellman?

Epicycles ships an update every 5 days, and Virtual Grellman every 5 weeks. Most recently, Epicycles was updated on September 21, 2026 and Virtual Grellman on October 6, 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.*