Comparison

Virtual Grellman vs Rock Scanner

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Virtual Grellman

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
Read full description

Virtual Grellman is attribution and educational software designed for large cents. Identifying your large cents by comparing photos instead of text descriptions makes attribution a breeze. Rarity ratings, die pairing information, and die state information is provided for every large cent variety, as well as DRNs (Date Reference Numbers) for the late date varieties. You can also keep track of your large cent collection, which is maintained across devices.

About

Rock Scanner

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
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Rock Scanner: Rock ID – Instantly Identify Rocks, Stones & Minerals Discover the hidden world beneath your feet with Rock Scanner: Rock ID, the ultimate app to identify rocks, stones, minerals, crystals, and fossils in seconds. Perfect for hobbyists, geology students, nature lovers, and curious explorers, our AI-powered rock scanner delivers fast and accurate results with just your phone’s camera. ▶ HOW IT WORKS Snap a photo or upload an image of any rock, stone, or mineral, and let Rock Scanner: Rock ID instantly recognize it. Get detailed information, classification, and fascinating facts in one tap – it’s like carrying a personal geologist in your pocket. ▶ KEY FEATURES • AI-Powered Rock Identification – Fast & Accurate • Scan Stones, Minerals, Crystals & Fossils • Extensive Rock Database for Reliable Results • Learn & Chat About Every Scanned Rock • Easy Sharing of Rock Images & Information • Clean, Intuitive, & User-Friendly Interface ▶ WHO IT’S FOR • Rock and crystal collectors • Hikers & outdoor enthusiasts • Geology and earth science students • Families & kids curious about nature ▶ WHY CHOOSE ROCK SCANNER: ROCK ID Rock Scanner: Rock ID isn’t just a rock identifier – it’s your go-to tool for exploring the geology around you. With powerful AI, rich visuals, and trusted data, you can confidently identify rocks anytime, anywhere. ▶ SCAN. IDENTIFY. LEARN. Turn every walk, hike, or nature trip into a geology adventure. From quartz and granite to jasper and obsidian, Rock Scanner: Rock ID makes it easy and fun to unlock the secrets of stones around you. ▶ DOWNLOAD ROCK SCANNER: ROCK ID TODAY Join millions of users discovering Earth’s geology. Identify rocks instantly – fast, fun, and educational. Learn more & stay informed: • Website: https://www.getidentifier.com/rock-identifier • Terms: https://www.getidentifier.com/terms • Privacy: https://www.getidentifier.com/privacy-policy Subscription required for full access. Free trial available. Terms and privacy policy apply.

Screenshots

Virtual Grellman4 screens
Rock Scanner4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 4 level
Virtual Grellman versus Rock Scanner: the parameters behind the verdict, then further details
ParameterVirtual GrellmanRock Scanner
PriceFreeFree
Rating5.0 (2 ratings) — better4.7 (6 ratings)
Number of ratings26 — better
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS12.0 — better17.0
Further details — not scored
Size36 MB13 MB
Age rating4+4+
DeveloperXante CorporationBrew Kft

In-app purchases

1 purchases

Virtual Grellman

One-time1
  • Dates 1793-1857$119.00
2 purchases

Rock Scanner

Subscriptions2
  • Weekly Plan3 Days trial$7.997 Days
  • Yearly Plan$29.991 Year

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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