Comparison

Stone Identifier vs Memory Explorer

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

Head to head
About

Stone Identifier

Identify rocks, crystals, and gemstones instantly by taking a photo. Explore geological surroundings, learn about over 6000 types of rocks, and build your personal rock collection. Offers professional knowledge and email support for inquiries.

Highlights
  • Photo identification of rocks
  • Learn about 6000+ rock types
  • Create personal rock collections
  • Explore trendy stones and their facts
  • Email geologist for inquiries
  • User-friendly design
Features
Read full description

Explore your geological surroundings, learn about different rocks. Simply take a photo (or upload) of a rock and Stone 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 & Crystal Identifier ! Stone Identifier Crystal Finder is an application to identify crystals, stones, gems quickly and accurately by artificial intelligence technology. All you need to do is to capture a photo or upload the photo from your device. It’s super easy to get started and receive the type of stone’s result you are looking for in just a second. This app aims to satisfy your curiosity about crystals and stones around us. Stone Identifier Crystal Finder provide you with: - An outstanding photo identification accuracy rate. - An excellent resource for learning about rocks. - An user-friendly display with a well-organized design. - Visual videos of the stones you are interested in. By using Rock Identifier Crystal Finder, you can: - Instantly and accurately identify a variety of rocks. - Quickly record your geological findings. - Easily create your own rock collection. Rock & Mineral & Crystal Identifier 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 characteristics of stones in seconds. Ever wished you had a crystal identifier to identify the crystals you find? Use this app as a crystal identifier to identify and learn about any crystal, rock, or gemstone you find! This crystal identifier is perfect for those moments where you want to connect with the world around you. No matter if you are a geologist, mineral explorer, hobbyist, student, teacher, or just want to expand your geological knowledge of rocks, rock & crystal identifier offers the easiest and most comprehensive rock guide and instructions. Create rock collections Display your properties and treasures of rock hunting, create your personal museum of rock identifications. Now you can record your stories with stones & minerals, 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. Explore, learn about, and document your geologic surroundings! Rock & Crystal 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.

About

Memory Explorer

Features
Read full description

Store and relive your memories in a beautiful and infinitely zoomable timeline view - - zoomable and filterable timeline - beautiful 'story album' view with chronology - show pictures and add annotations - show maps of locations that were important - scan your photo albums to auto-create timelines with times and locations, great for trips and travel ... And a lot more!

Screenshots

Stone Identifier4 screens
Memory Explorer4 screens

Verdict

The call

The clearest difference is ads: Memory Explorer at none against Stone Identifier's shown. Memory Explorer also leads on update cadence (every 9 days vs every 2 months). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Stone Identifier ships an update every 2 months, Memory Explorer every 9 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Stone Identifier versus Memory Explorer: the parameters behind the verdict, then further details
ParameterStone IdentifierMemory Explorer
PriceFreeFree
Rating3.7 (232 ratings) — better—
Positive reviews29.2% of reviews—
Number of ratings232 — better—
Update frequencyEvery 2 monthsEvery 9 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size35 MB41 MB
Age rating4+4+
DeveloperHardik JetaniTinkerTanks

Bugs and requests

Stone Identifier

Reported bugs

8 issues
  • Identification accuracy is severely flawed
  • Camera color representation is inaccurate
  • App freezes or fails to load properly
  • Search function requires manual back navigation
  • Same rock produces different results at different angles
Show 3 more
  • Cannot take or process photos correctly
  • Excessive ad interruptions during use
  • App crashes or becomes unresponsive

Requested features

9 requests
  • Add ability to upload images from gallery
  • Include price estimates for each identification result
  • Add collection feature to save identified rocks
  • Expand database with more rock and mineral types
  • Include metals like gold and silver
Show 4 more
  • Add birthstone information
  • Improve color accuracy in camera
  • Better parameters to distinguish between similar minerals
  • Add soapstone and other missing stones

Memory Explorer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Stone Identifier

No in-app purchases

None

Memory Explorer

No in-app purchases

Questions

Is Stone Identifier free?
Stone Identifier is free to download, with no in-app purchases.
Is Memory Explorer free?
Memory Explorer is free to download, with no in-app purchases.
Do Stone Identifier or Memory Explorer have ads?
Stone Identifier shows ads; Memory Explorer does not.
Which is updated more often, Stone Identifier or Memory Explorer?
Stone Identifier ships an update every 2 months, and Memory Explorer every 9 days. Most recently, Stone Identifier was updated on November 3, 2026 and Memory Explorer on October 24, 2026.

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