Comparison

GIA vs Rock ID

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

Head to head
About

GIA

This app helps users understand diamond quality by providing interactive tools for the 4Cs (color, clarity, cut, carat) and educational articles. It also allows users to save, share, and verify diamond reports, and find local retailers.

Highlights
  • Interactive 4Cs tools
  • Diamond buying tips and lore
  • Save and share GIA reports
  • GIA retailer lookup
  • Point-of-sale tools for sellers
  • Inscription matching with GIA Match iD
Read full description

Are You Shopping for Diamonds? 1. 4Cs Interactive Tools: Use sliding scales to compare color, clarity and cut grades and to visualize carat weight. 2. Diamond Buying Tips: Learn how to buy diamonds with our 4Cs blog articles. Know the difference between laboratory-grown and natural diamonds, and discover diamond ring lore. 3. Save and Send GIA Reports: Name and save your GIA diamond and jewelry reports. Drop someone a hint by sending your list! 4. GIA Retailer Lookup: Find local retailers that offer GIA-graded diamonds or have GIA-trained staff. Do You Sell Diamonds? 1. Point-of-Sale Tools: Use 4Cs sliding scales to help clients understand color, clarity and cut grades and to visualize carat weight. 2. 4Cs Blog Articles: Brush up on diamond knowledge such as fluorescence and diamond treatments. Romance clients with diamond lore and refer them to our blog for diamond buying tips. 3. Diamond and Jewelry Report Check: View, save and share GIA diamond and jewelry reports with ease across multiple devices. Name your reports to keep them organized. 4. Inscription Matching: Connect to a GIA Match iD instrument to match your diamond to its authorized GIA diamond report. Once matched, the report will appear on the GIA App and can be saved and sent. 5. GIA Resources: Boost your business with our services. Sign up for our Retailer Lookup to attract local clients looking for GIA-graded diamonds. Need to have a diamond graded? Open a lab account right in the app.

About

Rock ID

Instantly identify rocks, minerals, and gems by snapping a photo. Explore detailed profiles, manage your personal collections, and keep a log of all your discoveries. Become a geology expert with this comprehensive guide.

Highlights
  • Instant AI-powered stone identification
  • Vast catalog of rock profiles
  • Personal rock and mineral collections
  • Detailed history of identifications
  • Learn rock composition and origin
  • Distinguish real gems from fakes
Read full description

If you’re looking for an app to help you identify rocks and track your mineral collection, you’ve struck gold! Rock ID is an ultimate package of features that lets you manage your assortment of rocks and pick up some essential geology facts along the way. 1. Identify any unknown stones and minerals instantly! Having a hard time trying to identify the weird rock you’ve come across? Unsure if you’re about to purchase a genuine obsidian stone or a worthless imitation? Let Rock ID solve the mystery for you! Just snap a picture of any stone or mineral, and the app’s rock identifier will effortlessly recognize it. Rock ID can even distinguish a real diamond from a fake one. 2. Learn more about various types of rocks! Eager to get to know your rocks in a more effective way? Rock ID can help you with that! Each mineral, gem, rock, and stone in the app’s vast catalog has a descriptive profile. There, you can learn the composition of different rocks, their origin, and if they’re considered valuable. You can also discover if they have any historical or modern use and enjoy a list of intriguing facts about them. 3. Build and manage your rock collections! Want to keep track of your extensive rock collection in one place? Rock ID is the solution you’re looking for! You can easily arrange your collections of rocks, minerals, gems, and crystals and access each of them instantly, view essential information, or shuffle your collections however you desire! 4. Keep track of all your discoveries! Unsure if you’ve already seen that mineral? Rock ID will remember each identified rock for you! The app keeps a lengthy log of all snaps you take, making it virtually impossible to lose any valuable discovery. 5. Why choose Rock ID? • Instant rock identifier powered by AI • Vast catalog of rock profiles • Personal collections of rocks and minerals • Detailed history of all identifications With Rock ID, you’ll become a geology expert in no time! Let the app become your trusty source of mineral knowledge and leave the days of struggling with rock identification behind. Subscribe to Rock ID Premium to get unlimited access to all the app’s features: • Subscriptions are billed weekly, monthly, or annually at the rate depending on the subscription plan. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. All personal data is protected in accordance with the Terms of Use and Privacy Policy: http://aiby.mobi/rockid_ios/terms/ http://aiby.mobi/rockid_ios/privacy/ For any questions or inquiries, please use our customer support form at http://aiby.mobi/rockid_ios/support/

Screenshots

GIA4 screens
Rock ID4 screens

Verdict

The call

The clearest difference is review sentiment: GIA at 89% against Rock ID's 37%. GIA also leads on in-app purchases (none vs 10) and rating (4.8 vs 4.4). Rock ID's advantage is ratings volume (3.2K vs 537). On price, update cadence, ads 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. Rock ID sells 9 in-app purchases, starting at $4.99 per 7 days. GIA asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GIA holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Rock ID has 3.2K ratings behind it against 537, so its average is the more settled of the two. Written reviews point the same way: 89% of GIA's written reviews are positive against 37% of Rock ID's.

UpkeepUpdate frequency

GIA ships an update every 2 months, Rock ID monthly. Both last shipped on November 12, 2026.

Scorecard6 real differences · 4 level
GIA versus Rock ID: the parameters behind the verdict, then further details
ParameterGIARock ID
PriceFreeFree
Rating4.8 (537 ratings) — better4.4 (3.2K ratings)
Positive reviews88.9% of reviews — better37.3% of reviews
Number of ratings5373.2K — better
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size148 MB48 MB
Age rating4+4+
DeveloperGIAAIBY

Customer experience

GIA

All ratings529 ratings
Positive96.4%
Neutral0.4%
Negative3.2%
Written reviews9 reviews
Positive88.9%
Neutral0.0%
Negative11.1%

Rock ID

All ratings3,067 ratings
Positive83.6%
Neutral5.1%
Negative11.3%
Written reviews177 reviews
Positive37.3%
Neutral4.5%
Negative58.2%

Bugs and requests

GIA

Not enough reviews yet to summarise bugs or requests.

Rock ID

Reported bugs

3 issues
  • Incorrect identification of common stones
  • Failure to recognize obvious stone types
  • Inability to scan certain stones

Requested features

4 requests
  • More detailed stone information
  • Improved identification accuracy
  • Ability to manually correct misidentifications
  • Option to disable paywall for limited use

In-app purchases

None

GIA

No in-app purchases

9 purchases

Rock ID

Subscriptions9
  • Rock ID PRO3 Days trial$4.997 Days
  • Rock ID PRO$4.997 Days
  • Weekly access (3 days trial)3 Days trial2 variants$5.997 Days
Show 6 more
  • Weekly access$5.997 Days
  • Weekly access (3 days trial)3 Days trial$6.997 Days
  • Weekly access$6.997 Days
  • Rock ID PRO3 Days trial$6.997 Days
  • Yearly premium subscription$19.991 Year
  • Yearly premium subscription$39.991 Year

Questions

Is GIA free?
GIA is free to download, with no in-app purchases.
Is Rock ID free?
Rock ID is free to download, with in-app purchases available.
Which has better reviews, GIA or Rock ID?
GIA is rated higher. GIA averages 4.8 out of 5 from 537 ratings, while Rock ID averages 4.4 from 3.2K ratings.
Do GIA or Rock ID have ads?
Neither GIA nor Rock ID shows ads.
Which is updated more often, GIA or Rock ID?
GIA ships an update every 2 months, and Rock ID monthly. Most recently, GIA was updated on November 12, 2026 and Rock ID on November 12, 2026.

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