# Virtual Grellman vs Rock Scanner

The clearest difference is rating: Virtual Grellman at 5.0 against Rock Scanner's 4.7. Virtual Grellman also leads on device support (4 vs 1) and iOS requirement (12.0 vs 17.0). Rock Scanner's advantage is update cadence (every 2 weeks vs every 5 weeks) and ratings volume (6 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Virtual Grellman sells 1 one-off in-app purchase and Rock Scanner sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Virtual Grellman holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 2 and 6 respectively.

Virtual Grellman ships an update every 5 weeks, Rock Scanner every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Virtual Grellman | Rock Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/virtual-grellman/id6462698651/reviews)** | [4.7 (6 ratings)](https://appshunter.io/ios/app/rock-scanner-rock-id/id6748944973/reviews) |
| Number of ratings | 2 | **6** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 36 MB | 13 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Xante Corporation](https://appshunter.io/developer/1476279304) | [Brew Kft](https://appshunter.io/developer/1126045080) |

## 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 |


### Rock Scanner

[App page](https://appshunter.io/ios/app/rock-scanner-rock-id/id6748944973)

Instantly identify rocks, stones, minerals, crystals, and fossils using your phone's camera. Get detailed information and facts about geological finds. Perfect for collectors, students, and nature enthusiasts.

**Highlights:** AI-powered rock identification, Scan stones, minerals, crystals, fossils, Extensive rock database, Learn and chat about rocks, Easy sharing of findings, Intuitive user interface

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $7.99 | per 7 days |
| Yearly Plan | $29.99 | per year |


## Frequently asked questions

### Is Virtual Grellman free?

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

### Is Rock Scanner free?

Rock Scanner is free to download, with in-app purchases available.

### Which has better reviews, Virtual Grellman or Rock Scanner?

Virtual Grellman is rated higher. Virtual Grellman averages 5.0 out of 5 from 2 ratings, while Rock Scanner averages 4.7 from 6 ratings.

### Do Virtual Grellman or Rock Scanner have ads?

Neither Virtual Grellman nor Rock Scanner shows ads.

### Which is updated more often, Virtual Grellman or Rock Scanner?

Virtual Grellman ships an update every 5 weeks, and Rock Scanner every 2 weeks. Most recently, Virtual Grellman was updated on November 3, 2026 and Rock Scanner on October 30, 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.*