Comparison

Gem Identifier gemstone AI vs Crystal Identifier Rock guide

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

Head to head
About

Gem Identifier gemstone AI

Instantly identify rocks, gems, stones, and minerals using AI. Explore an extensive database, manage your collection, and learn geological facts. Features offline mode for on-the-go exploration.

Highlights
  • Instant AI rock identification
  • Extensive rock and mineral database
  • Educational insights and facts
  • Personal collection manager
  • Offline identification mode
  • User-friendly design for all levels
Features
Read full description

Scan any rock, gem, stone, or mineral and identify it instantly with AI! Gem Identifier is an all-in-one identifier built for seasoned geologists all the way to complete beginners. Simply scan or upload a photo and Gem Identifier will provide accurate and in-depth results in seconds. Curious about the name of that stone you found while rockhounding? Want to learn about the unique properties of the stones and crystals in your collection? Eager to expand your knowledge of rocks and crystals? This powerful stone identifier and crystal guidebook has you covered! Features: ● Instant Rock Identification ● Simply snap a photo of any rock, and our advanced AI-powered tool will instantly identify it with high accuracy. Discover detailed information about each rock type, including its name, composition, and origins. ● Extensive Rock Database ● Access a vast library of rocks, minerals, and gemstones. Learn about their unique characteristics, where they're found, and their historical significance. ● Educational Insights ● Dive deep into the geological world with articles, quizzes, and fun facts that enhance your knowledge about rocks, minerals, fossils, and more. ● Collection Manager ● Keep track of your personal rock collection by saving and organizing identified rocks. Add notes, locations, value and photos to each entry. ● Offline Mode ●  No signal? No problem! Identify and learn about rocks even when you're offline, making it the perfect companion for your outdoor adventures. ● User-Friendly Design ●  Designed with simplicity and ease of use in mind, Gem Identifier is perfect for all ages and skill levels, from beginners to seasoned geologists. Gem Identifier was designed to help everyone explore and learn more about the geological world around them. Download the app today to start your journey into the fascinating world of stones and crystals, and train yourself to become a rock expert! Subscription information: * $39.99/year for unlimited VIP access to your personal program and full features * Payment will be charged to App Store Account at confirmation of purchase * Manage and cancel subscriptions in Account Settings. When canceling a subscription, your subscription will stay active until the end of the period. * Auto-renews 24 hours before the current period ends * Account will be charged for renewal within 24-hours prior to the end of the current period * Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase * Any unused portion of a free trial period, if offered, will be forfeited when purchasing a subscription * Please note: Always consult a physician before starting any fitness program. Results may vary Privacy policy: https://sites.google.com/view/rock-app-policies/privacy-policy?authuser=0 Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact us: zach@fulminareholdings.com

About

Crystal Identifier Rock guide

Features
Read full description

Crystal Identifier is an AI-powered app designed to identify fish species with ease. Simply snap a photo or upload an image of the fish, and the app uses advanced machine learning algorithms to analyze and compare it to a comprehensive database of fish species. Crystal Identifier quickly provides an accurate identification, along with detailed information about each species. Perfect for anglers, marine biologists, and fish enthusiasts, this app makes discovering and learning about underwater life accessible and engaging. Privacy Policy: https://elegant-gazelle-ca9.notion.site/Privacy-Policy-10c634d4c40680a4a91ef533b14cb26d?pvs=74 Terms of Use: https://elegant-gazelle-ca9.notion.site/Terms-Conditions-10c634d4c40680e7b682ff9bdd86b03d?pvs=74

Screenshots

Gem Identifier gemstone AI4 screens
Crystal Identifier Rock guide3 screens

Verdict

The call

The clearest difference is update cadence: Gem Identifier gemstone AI at every 5 days against Crystal Identifier Rock guide's every 3 months. On price, ads, in-app purchases and device support 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. Gem Identifier gemstone AI sells 2 in-app purchases, starting at $6.99 per 7 days and Crystal Identifier Rock guide sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Gem Identifier gemstone AI ships an update every 5 days, Crystal Identifier Rock guide every 3 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

Scorecard1 real difference · 9 level
Gem Identifier gemstone AI versus Crystal Identifier Rock guide: the parameters behind the verdict, then further details
ParameterGem Identifier gemstone AICrystal Identifier Rock guide
PriceFreeFree
Rating4.5 (31 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings31 — better—
Update frequencyEvery 5 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size93 MB34 MB
Age rating4+4+
DeveloperFulminare HoldingsSemen Sharyhin

In-app purchases

2 purchases

Gem Identifier gemstone AI

Subscriptions2
  • Weekly subscription7 Days trial$6.997 Days
  • Yearly Subscription$39.991 Year
2 purchases

Crystal Identifier Rock guide

Subscriptions2
  • Crystal Identifier Weekly3 Days trial$4.997 Days
  • Crystal Identifier Yearly$24.991 Year

Questions

Is Gem Identifier gemstone AI free?
Gem Identifier gemstone AI is free to download, with in-app purchases available.
Is Crystal Identifier Rock guide free?
Crystal Identifier Rock guide is free to download, with in-app purchases available.
Do Gem Identifier gemstone AI or Crystal Identifier Rock guide have ads?
Neither Gem Identifier gemstone AI nor Crystal Identifier Rock guide shows ads.
Which is updated more often, Gem Identifier gemstone AI or Crystal Identifier Rock guide?
Gem Identifier gemstone AI ships an update every 5 days, and Crystal Identifier Rock guide every 3 months. Most recently, Gem Identifier gemstone AI was updated on October 30, 2026 and Crystal Identifier Rock guide on October 27, 2026.

Other comparisons