Comparison

Instant Math Cards vs Gem Identifier & Rock ID

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

Head to head
About

Instant Math Cards

Features
Read full description

Instant Math Cards lets you sharpen your math skills anytime, anywhere! With a wide variety of subjects, these cards ensure you'll always be challenged and engaged. Perfect for young aspiring mathematicians, this app offers new levels every month to keep your learning experience fresh and exciting. Our new points system makes math fun and rewarding for any student. Features Include: -Instant level feedback to evaluate strengths and weaknesses -Leaderboards to compete with friends or globally -Daily challenges to give users a fresh daily competition to compete in https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Gem Identifier & Rock ID

Identify rocks, gems, and crystals instantly by taking a photo. Access a comprehensive database with detailed information and authenticate precious stones. Includes a built-in metal detector for further analysis.

Highlights
  • Instant stone identification via photo
  • Comprehensive stone database
  • Gem authentication tool
  • Built-in metal detector
  • AI recognition technology
Features
Read full description

Gem Identifier - Discover the Hidden World of Stones Unlock the mysteries of every rock, gem, and crystal you encounter with our powerful identification app. Whether you're a geology enthusiast, collector, or simply curious about the stones around you, this app transforms your phone into a professional geological tool. Instant Stone Identification - Simply take a photo and get accurate identification results in seconds. Our advanced AI recognition technology helps you identify rocks, gems, crystals, and stones with remarkable precision. Comprehensive Stone Database - Access detailed information about thousands of stones including their formation, properties, historical significance, and metaphysical meanings. Learn fascinating facts that bring each specimen to life. Gem Authentication Tool - Verify the authenticity of your precious stones and gems. Our specialized feature helps you distinguish between natural stones and synthetic alternatives, giving you confidence in your collection. Built-in Metal Detector - Discover the magnetic properties of your stones using your device's magnetometer. This unique feature adds another layer of analysis to help you understand your specimens better. Perfect for rock hounds, jewelry enthusiasts, students, and anyone passionate about the natural world. Start your geological adventure today and become an expert stone identifier. Every stone has a story waiting to be discovered. Download now and transform the way you explore the fascinating world of minerals and gems. Terms of Use: https://innotent.io/rock-identifier-terms-of-use/ Privacy Policy: https://innotent.io/rock-identifier-privacy-policy/

Screenshots

Instant Math Cards4 screens
Gem Identifier & Rock ID4 screens

Verdict

The call

The clearest difference is ads: Instant Math Cards at none against Gem Identifier & Rock ID's shown. On price, update cadence, in-app purchases and device support 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. Instant Math Cards sells 1 one-off in-app purchase and Gem Identifier & Rock ID sells 5 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Instant Math Cards ships an update every 3 weeks, Gem Identifier & Rock ID monthly. Both last shipped on October 24, 2026.

Scorecard1 real difference · 8 level
Instant Math Cards versus Gem Identifier & Rock ID: the parameters behind the verdict, then further details
ParameterInstant Math CardsGem Identifier & Rock ID
PriceFreeFree
Rating—4.4 (24 ratings) — better
Number of ratings—24 — better
Update frequencyEvery 3 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS17.516.0 — better
Further details — not scored
Size14 MB36 MB
Age rating4+4+
DeveloperJackson DowInnotent LTD

In-app purchases

1 purchases

Instant Math Cards

One-time1
  • Premium Features Access$2.99
5 purchases

Gem Identifier & Rock ID

Subscriptions4
  • Weekly$6.997 Days
  • Yearly$19.991 Year
  • Yearly, 3 Days Free Trial3 Days trial$29.991 Year
Show 1 more
  • Yearly$29.991 Year
One-time1
  • Lifetime$14.99

Questions

Is Instant Math Cards free?
Instant Math Cards is free to download, with in-app purchases available.
Is Gem Identifier & Rock ID free?
Gem Identifier & Rock ID is free to download, with in-app purchases available.
Do Instant Math Cards or Gem Identifier & Rock ID have ads?
Gem Identifier & Rock ID shows ads; Instant Math Cards does not.
Which is updated more often, Instant Math Cards or Gem Identifier & Rock ID?
Instant Math Cards ships an update every 3 weeks, and Gem Identifier & Rock ID monthly. Most recently, Instant Math Cards was updated on October 24, 2026 and Gem Identifier & Rock ID on October 24, 2026.

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