Rock Hound Pro - Rock ID

Usher Schwartz

Contains adsIn-app purchases

About this app

Rock Hound is a 100% offline rock and mineral identifier and geology field guide — built for collectors, hikers, and rockhounding enthusiasts across North America. Every entry is expert-curated with real field-identification data, not AI guesswork. No internet required, no sign-up — just open it and start identifying.

Found a sparkling crystal in a creek bed or a mysterious stone on the trail? Rock Hound helps you figure out exactly what you're holding — no guessing, no dead-end web searches. Whether you're asking "what rock is this?" on a hike or building a mineral collection, Rock Hound gives you the answer and the reasoning behind it.

WHAT'S INSIDE
• Rock identification for rocks, minerals, gemstones, and ore specimens
• Crystal identifier data — crystal systems and habits for confident ID
• Gem identifier tips to distinguish precious and semi-precious stones
• Mineral hardness (Mohs scale), luster, streak test, and crystal-system data
• Geology field guide built for the field — where each specimen is commonly found across North America
• Safe-handling notes for minerals that need care
• Rockhounding tips for every skill level — from creek beds to quartz veins
• 39 entries free — the most common rocks and minerals you'll actually find
• Unlock the full collection with Pro — from common quartz varieties to rare collector gems

PREMIUM FEATURES — ROCK HOUND PRO
Upgrade to Pro ($9.99/year) and unlock:
• Full access to all 57 rocks and minerals including 18+ rare pro-only gems and collector specimens
• Detailed regional collecting hotspots — specific locations across North America
• Complete legal collecting guide by state — permits, restrictions, and federal rules
• Expert look-alike identification tips — distinguish similar minerals with confidence
• Pro Quiz mode — test your rock & mineral ID skills with the full 57-specimen database
• Ad-free experience — no interruptions while identifying

Subscription auto-renews annually. Cancel anytime. Restore purchases supported.

BUILT FOR ROCKHOUNDING
Whether you're identifying a mineral for a school project, sorting a rockhounding haul, or just curious about a rock in your yard, Rock Hound gives you the answer and the reasoning behind it.

WHY ROCK HOUND
• 100% offline — works in the field with no signal, no Wi-Fi, no data
• No ads (with Pro), ever — your collection tools aren't a billboard
• Expert-curated entries, not unreliable AI photo guesses
• Real field-identification guidance: mineral hardness and streak test explained
• Built for North American collectors and rockhounds
• Your complete geology field guide in your pocket

WHO USES ROCK HOUND
• Rockhounds exploring creek beds and quartz veins
• Hikers identifying rocks and minerals on trails
• Gem collectors sorting through field finds
• Geology students studying mineral properties
• Families on nature trips curious about rocks
• Prospectors checking ore specimens

Download Rock Hound and start identifying rocks, minerals, and crystals today.