Comparison

Rock Identifier vs Gem Identifier

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

Head to head
About

Rock Identifier

Identify rocks, minerals, crystals, and gemstones instantly with a photo. Get detailed information on properties, hardness, and value. Learn to distinguish authentic stones from imitations.

Highlights
  • Instant rock, mineral, crystal & gemstone identification
  • Detailed stone information (name, hardness, properties)
  • Estimated gemstone value ranges & rarity insights
  • Authenticity indicators for imitations/treatments
  • Compare similar stones
  • Save favorites and build a collection
Features
Read full description

Discover the fascinating world of rocks, minerals, crystals, and gemstones with Rock Identifier — your smart rock identification and analysis app. Simply take a photo of any rock, mineral, crystal, or gemstone, and get instant identification using advanced image recognition. Learn the stone’s name, hardness (Mohs scale), physical properties, crystal type, and similar stones in seconds. Beyond identification, Rock Identifier helps you understand a stone’s potential value and authenticity indicators. Explore estimated value ranges, rarity information, and visual clues that may help distinguish natural stones from imitations or treated crystals. Whether you’re a collector checking a gemstone, a student learning geology, or someone wondering if a found stone is real or fake, Rock Identifier gives you clear, educational insights you can trust. From common minerals like quartz and calcite to rare crystals and valuable gemstones, gain knowledge, background, and comparison data — all in one powerful rock scanner app. Perfect for rockhounds, collectors, students, hobbyists, and nature lovers, Rock Identifier turns curiosity into confidence. Key Features: • Instant rock, mineral, crystal & gemstone identification • Detailed info: name, hardness, properties, and structure • Estimated gemstone value ranges & rarity insights • Authenticity indicators to help spot imitations or treatments • Compare similar stones & common look-alikes • Discover natural vs synthetic stone characteristics • Save favorites and build your personal collection • Ideal for learning, collecting, and outdoor exploration Premium Features: • Fake vs Real analysis • Stone value estimation • Unlimited scans Privacy Policy: https://drive.google.com/file/d/184sf2Bd2ahP_Is_M2o0XehfGm1bExLSY/view?usp=sharing Terms of Use: https://drive.google.com/file/d/1ex1HvoOrjpGWr2cvWuqdtO1vKp2VXSUa/view?usp=sharing Scan stones, estimate value, and learn how to recognize real vs imitation crystals — all from your phone.

About

Gem Identifier

Instantly identify gemstones, rocks, and minerals by taking a photo. This app uses advanced AI and a global database to provide detailed information about thousands of gems, helping you learn and build a personal collection.

Highlights
  • Instant AI-powered gem identification
  • Detailed information on gems and minerals
  • Create and manage a personal gem collection
  • High-precision image recognition
  • User-friendly interface
  • Offline access to saved results
Features
Read full description

Simply take a photo, and our advanced AI instantly analyzes and identifies the gemstone within seconds. With a vast global database and high-precision image recognition, you’ll receive detailed and reliable information about thousands of gems and crystals from around the world. Powerful Gem Scanner Technology Powered by advanced AI and gemology data, our gem scanner recognizes and classifies gemstones with exceptional accuracy. Say goodbye to guesswork — just snap, scan, and identify any gem effortlessly. Identify Precious Gems, Crystals & Minerals From dazzling diamonds to colorful sapphires, emeralds, and rare crystals, our gem identifier and crystal identifier tools provide in-depth details about every discovery. Learn about each gem’s type, hardness, origin, color variations, and even its estimated value. Learn & Build Your Gem Collection Save every gem you identify and create your personal gem collection inside the app. With your own digital gem library, you can easily track, categorize, and revisit your discoveries anytime — perfect for students, collectors, and jewelry enthusiasts who want to deepen their gem knowledge. Why Choose Gem Identifier & Scanner Instant gem identification using your phone’s camera Accurate AI-based detection for gems, crystals, and minerals High-quality visuals and educational gemology insights User-friendly interface suitable for beginners and professionals Offline access to your saved gemstone results anytime Perfect for Gem & Crystal Lovers Whether you’re visiting a jewelry store, exploring markets, or admiring gemstones in nature, take Gem Identifier & Scanner with you. Instantly identify every gem you encounter and reveal its story, origin, and properties. This all-in-one gem identification app helps you explore the world of gemstones and crystals like never before — right from your pocket. Download Gem Identifier & Scanner today and start your journey to becoming a gem expert, one beautiful discovery at a time! Terms of use: https://thepenguin.tech/legal/gemstone-identifier-terms-of-use.html

Screenshots

Rock Identifier4 screens
Gem Identifier4 screens

Verdict

The call

The clearest difference is rating: Rock Identifier at 4.5 against Gem Identifier's 1.0. Rock Identifier also leads on update cadence (every 9 days vs every 9 months) and ratings volume (235 vs 1). On price, ads, in-app purchases and monetization model 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. Rock Identifier sells 3 in-app purchases, starting at $6.99 per 7 days and Gem Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Rock Identifier holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Rock Identifier has 235 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Rock Identifier ships an update every 9 days, Gem Identifier every 9 months. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Rock Identifier versus Gem Identifier: the parameters behind the verdict, then further details
ParameterRock IdentifierGem Identifier
PriceFreeFree
Rating4.5 (235 ratings) — better1.0 (1 ratings)
Positive reviews70.6% of reviews—
Number of ratings235 — better1
Update frequencyEvery 9 days — betterEvery 9 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.6
Further details — not scored
Size52 MB20 MB
Age rating4+4+
Developernurten caySaif Ullah Sajid

Customer experience

Rock Identifier

All ratings235 ratings
Positive90.2%
Neutral1.3%
Negative8.5%
Written reviews17 reviews
Positive70.6%
Neutral0.0%
Negative29.4%

Gem Identifier

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

Rock Identifier

Subscriptions3
  • rock_weekly$6.997 Days
  • rock_yearly$39.991 Year
  • rock_yearly_free_trial3 Days trial$49.991 Year
2 purchases

Gem Identifier

Subscriptions2
  • Gemstone Identifier Pro Weekly$4.997 Days
  • Gemstone Identifier Pro Yearly$19.991 Year

Questions

Is Rock Identifier free?
Rock Identifier is free to download, with in-app purchases available.
Is Gem Identifier free?
Gem Identifier is free to download, with in-app purchases available.
Which has better reviews, Rock Identifier or Gem Identifier?
Rock Identifier is rated higher. Rock Identifier averages 4.5 out of 5 from 235 ratings, while Gem Identifier averages 1.0 from 1 ratings.
Do Rock Identifier or Gem Identifier have ads?
Neither Rock Identifier nor Gem Identifier shows ads.
Which is updated more often, Rock Identifier or Gem Identifier?
Rock Identifier ships an update every 9 days, and Gem Identifier every 9 months. Most recently, Rock Identifier was updated on November 12, 2026 and Gem Identifier on November 5, 2026.

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