FCFSD vs Rock Identifier
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FCFSD
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Exalting Jesus Christ with every aspect of our lives by the Word of God. Mobile app version: 6.23.8
Rock Identifier
Instantly identify rocks, minerals, crystals, and fossils using advanced AI. This app serves as a geological companion for enthusiasts, students, and professionals, offering detailed information and community interaction.
- AI-powered rock identification
- Community identification sharing
- Personal AI rock assistant
- Learn rock categories and properties
- Information on crystal systems
- Geological formation details
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Instantly identify rocks, minerals, crystals, and fossils with advanced AI technology Transform your phone into a powerful geological companion! Rock Identifier uses cutting-edge artificial intelligence to help you identify and learn about the geological wonders around you. Whether you're a professional geologist, student, collector, or curious explorer, our app makes rock identification simple and educational. Key Features AI-Powered Rock Identification Simply snap a photo and let our specialized AI instantly identify your specimen. Community Identifications Connect with fellow rock enthusiasts! Share your finds and learn from a vibrant community of collectors and geology experts. Your Personal AI Rock Assistant Get instant answers to your geology questions. Our AI assistant helps you understand: - Rock categories (igneous, sedimentary, metamorphic) - Crystal systems and mineral properties - Hardness scales and field testing methods - Geological formations and age ranges Perfect For - Geology students and educators - Professional geologists and mineralogists - Rock collectors and hobbyists - Jewelry makers and gemstone enthusiasts - Hikers and outdoor explorers - Young earth science enthusiasts Why Choose Rock Identifier? We focus exclusively on geological specimens. This specialized approach means higher accuracy, more relevant features, and deeper educational content tailored specifically for rock and mineral identification. Start exploring the geological world today - download Rock Identifier and turn every outdoor adventure into a learning experience! Find our EULA here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: FCFSD at none against Rock Identifier's 2. FCFSD also leads on device support (4 vs 1) and iOS requirement (15.1 vs 17). Rock Identifier's advantage is update cadence (every 5 weeks vs every 3 months). On price and ads 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
Both are free to download. Rock Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. FCFSD asks for nothing beyond the download.
FCFSD ships an update every 3 months, Rock Identifier every 5 weeks. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.
| Parameter | FCFSD | Rock Identifier |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (206 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | — | 206 — better |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPhone |
| Requires iOS | 15.1 — better | 17 |
| Further details — not scored | ||
| Size | 56 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Fulton Christian Fellowship | Kawaii |
In-app purchases
FCFSD
No in-app purchases
Rock Identifier
- Rock Identifier Pro (Weekly)3 Days trial$4.997 Days
- Rock Identifier Pro (Yearly)$29.991 Year
Questions
Is FCFSD free?
Is Rock Identifier free?
Do FCFSD or Rock Identifier have ads?
Which is updated more often, FCFSD or Rock Identifier?
Other comparisons
