# Virtual Grellman vs X

The clearest difference is in-app purchases: X at none against Virtual Grellman's 1. Virtual Grellman's advantage is update cadence (every 5 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Virtual Grellman sells 1 one-off in-app purchase. X asks for nothing beyond the download.

Virtual Grellman ships an update every 5 weeks, X every 4 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Virtual Grellman | X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/virtual-grellman/id6462698651/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 36 MB | 79 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xante Corporation](https://appshunter.io/developer/1476279304) | [University of Oulu](https://appshunter.io/developer/1057902852) |

## What reviewers say

### 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 |


### X

[App page](https://appshunter.io/ios/app/x-ray-scatter-sim/id6463718894)

**In-app purchases:** none


## Frequently asked questions

### Is Virtual Grellman free?

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

### Is X free?

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

### Do Virtual Grellman or X have ads?

Neither Virtual Grellman nor X shows ads.

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

Virtual Grellman ships an update every 5 weeks, and X every 4 months. Most recently, Virtual Grellman was updated on October 24, 2026 and X on October 27, 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.*