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About
Instantly identify rocks, gems, and fossils with this offline app. Designed for kids aged 8-15, it provides easy facts about formations and locations. Build your collection and earn badges for your discoveries.
✓Instant offline identification
✓Kid-friendly facts and explanations
✓Build and save rock collections
✓Unlock achievement badges
✓Works 100% offline
✓COPPA-compliant and private
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What's New in MrRock：Kids Stone Identifier
1.1
August 9, 2026
Updated the recognition model and improved the overall user experience.
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FAQ
What is MrRock?
MrRock is an offline rock identification app designed for children aged 8-15. It allows users to snap photos of rocks, stones, gems, crystals, or fossils and instantly learn what they are, with no internet connection required.
Does MrRock have ads?
No, MrRock is ad-free. The app explicitly states 'No ads. No pop-ups. No chat. No data collection.' and is designed to be safe and private for children.
How does MrRock identify stones?
MrRock uses on-device AI to recognize stones from a photo. This process is done entirely on the user's device, meaning no Wi-Fi or signal is needed for instant identification.
What kind of stones can MrRock identify?
MrRock can identify a wide variety of geological items, including igneous, sedimentary, and metamorphic rocks, over 500 minerals, gemstones like amethyst and jade, crystals such as rose quartz, fossils like ammonites, and even meteorites.
Is MrRock suitable for school projects?
Yes, MrRock is perfect for school science projects, homeschool geology, and STEM learning. It provides easy facts about how rocks formed, where they are found, and why they are special.
Can I save my rock finds with MrRock?
Yes, you can build your collection by saving every find within MrRock. The app also allows you to unlock badges for achievements like 'First Fossil' or 'Crystal Hunter'.
What is the age rating for MrRock?
MrRock has an age rating of 4+. It is designed to be parent-approved and kid-loved, with a focus on safety and privacy.
How often is MrRock updated?
The latest version of MrRock is 1.1, which was last updated on August 9, 2026. This indicates a recent update, suggesting ongoing development and support for the application.
