Rock Identifier: Stone ID

In-app purchases
4.5
101K reviews
10M+
Downloads
Content rating
Everyone
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About this app

Simply take a photo (or upload) of rock and Rock Identifier will tell you all about it in seconds. Explore your geological surroundings, learn about different rocks, and engage with the natural world with Rock Identifier!

Key features:
-Easily identify thousands of rocks
-Impressive identification accuracy
-Rich resources to learn about rocks
-Beautiful & user-friendly interface
-Save all your favorite geological observations in the app’s rock collection
-Search function improvements allow users to search for 6000+ kinds of rock
-Added more content/resources for learning about geology
-Users can now add more information about each rock including place of production, date of purchase, price, and size, along with uploading local photos to their collection

Identify rocks & minerals
Encounter a diversity of interesting rocks? Want to start your trial of rock hunting?
Take a photo of any crystals or gemstones and get an instant accurate identification. This rock scanner app contains over 6000+ types of rocks and helps anyone who wants to recognize, examine and explore the characteristics of stones in seconds.

Whether you are a geologist, mineral explorer, hobbyist, student, teacher, or just want to expand your geological knowledge of rocks, rock identifier offers the easiest and most comprehensive rock guide and instructions.

Create rock collections
Display your properties and treasures of rock hunting, and create your personal museum of rock identifications. Now you can record your stories with stones & minerals, and easily mark down the stone id, locations, dates, purchase price, and other features of rock observations.

Explore trendy stones
Interested in raw stone, natural gemstones, or crystal clusters? Download this rock scanner app to figure out the mysteries of rocks all around the world. Discover fun facts about stones, such as Healing Crystals, Tumbled Stones, Birthstones, Zodiac Gemstones, and more.

One-on-one with a Geologist
This scanner app not only provides you with lively, professional knowledge of mineralogy and petrology but also offers an email service for one-on-one inquiry help.

Why Rock Identifier?
√Identify stones, crystals, and minerals with a phone camera
√ Professional handbook of geology toolkit
√ Learn everything about rocks: name, hardness, color, luster, formula…
√ Record your rock/gem hunting with identifying app
√ Useful educational app for geology students, teachers, and experts to learn more about mineralogy.
√ For anyone who is interested in rocks: adventurers, mineral collectors, gem hunters.

Explore, learn about, and document your geologic surroundings! Rock Identifier allows you to identify rocks with photos, explore and learn more about the geologic record, contribute your own observations, and record your journey through the geologic record.

Find out more about Rock Identifier at:
https://www.rockidentifier.com
Updated on
May 20, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info, Financial info and 3 others
This app may collect these data types
Personal info, Financial info and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.5
99.2K reviews
Peter B
August 5, 2025
Occasionally this app drops the ball but in general it's pretty accurate. I've used it to identify thousands of rocks, gemstones and minerals. When using the valuation tool make sure to capture the picture from several angles and different lighting because you'll see that it gives a completely different result. It would be nice to identify rocks with a UV light shining on it. Maybe you could give the option to take a 2nd shot using a UV light and your specimens could include examples under UV.
16 people found this review helpful
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Next Vision Limited
August 6, 2025
We apologize for the inconsistent results. For more accurate identifications, try taking well-lit photos from different angles and distances, focusing on the rock's key features. If you're still getting varied results, email us at support@rockidentifier.com with example photos. We'd like to investigate this issue to improve our app's accuracy.
A Google User
July 4, 2025
I like this app. the "Free" version allows you to identify rocks, and also create as collection. pretty cool. but, it's not the best at identifying rocks. I give 4 stars because the app has a place to correct them. that's cool. premium you get values and other things. but I just like my collection. full work up on the rock you enter. history, age, locations. how it's formed. very informative. and all for free. it's a keeper.
288 people found this review helpful
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Mike Speer
August 19, 2025
Update: My apologies. How do I find the free version? Downloaded the app because there was a free version with limited functionality. It is only free for 7 days, then it is a subscription fee. Immediately Uninstalled it. Apps should clearly disclose this in app info. I don't mind purchasing apps. Developers deserve to make money. I do not like that almost every app requires a subscription now. All those fees add up. Play Store should have a filter to select free, purchase, and/or subscription.
1 person found this review helpful
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Next Vision Limited
August 19, 2025
We apologize for the confusion. We offer both a free version and a premium version with a 7-day free trial, requiring no payment upfront. The free version includes our core identification functionality and basic information about rocks, minerals and gemstones. If you have any questions or need help, please contact us at support@rockidentifier.com.

What’s new

Improved identification accuracy. A few minor bugs have been fixed for smoother user experience.