Appworthy

Gem Genius AI

Diamond & Gem market guide

Trisphere Apps LLC
Download on theApp Store
App Store rating3.0★2 ratings
Price$0.99In-app $2.99–$79.99
Age17+Store age rating
Size25 MBiPhone download
CategoryLifestyle
DeveloperTrisphere Apps LLC

What we found

Full report

Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.

Money

  • $0.99 to download · in-app purchases $2.99–$79.99 (5 listed). Monthly plan $4.99 (about $60 a year); yearly plan $39.99. The other purchases’ names don’t say how often they bill.
  • If you subscribe through the store, cancel in iPhone Settings → your name → Subscriptions. Deleting the app doesn’t cancel a subscription.

Not yet tested.

The store currently lists version 2, updated 2026-07-27.

Preview

Screenshot 1Screenshot 2Screenshot 3Screenshot 4Screenshot 5

Store screenshots supplied by the developer.

About this app

Gem Genius: Your On-Device Gemstone & Diamond Companion

Meet the rebuilt Gem Genius — a free, privacy-first app for anyone who loves gemstones, diamonds, and fine jewelry, whether you're a collector, a shopper, or just curious what's in your jewelry box.

AI Jeweler Chat

- On-device AI conversation powered by Apple's on-device models — no API key, no network call, no data leaving your phone

- Grounded in the app's own encyclopedia for accurate answers

- Recognizes gems mentioned in conversation and shows their photo inline…

From the developer’s store description.

For developers and the curious

The full report

The evidence, sources, measurements and versions behind every label above.

Findings and evidence

Not yet tested
Not yet tested. No analysis has been published for this app. A missing label is not a clean bill of health.

What reviewers report

No review coverage

No review analysis published for this app.

Measurements

3 measured · 5 not assessed

“Not assessed” means we could not measure it. It is never a zero and never a pass.

From store data and reviews

Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description doesn’t say how to cancel (most don’t)
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
Under 65% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the app package we scanned

No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.

Sensitive permissions
Not assessed
No package has been scanned for this app
Analytics or tracking SDKs in the scanned package
Not assessed
No package has been scanned for this app
Advertising SDKs in the scanned package
Not assessed
No package has been scanned for this app
How we know

Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured

Versions and dates analysed

Not yet tested

Not yet tested. No analysis has been run for this app, so there is no version or date to report.

Store update history

Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.

App Store

Version 2 · 2026-07-27
Gem Genius has been completely rebuilt from the ground up — same app, dramatically more inside. NEW: On-Device AI Jeweler Chat Ask anything about gemstones or diamonds and get answers instantly, powered entirely on your iPhone — no account, no API key, no data ever leaving your device. NEW: Learn Hub - Encyclopedia of 20 gemstones with origins, hardness, treatments, and price ranges - Dictionary of 69 jewelry and diamond terms - Hallmark database covering 21 assay and maker's marks by country - Interactive Diamond 4Cs visualizer, including a rotating 3D diamond with Tilt to Sparkle NEW: Photo Gemstone Identification Snap a photo and get an on-device color-match identification against the…

Shortened here; the full notes are on the store listing.

Assessment record

Status
Not yet tested
App identifier
gem-genius-ai
Sources used
None recorded
Reviews read
None recorded
Package examined
No package scan
Human inspection
Not completed
How we know
Measurement vocabulary
1.4

Store facts

App Store

What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.

App Store

Store rating
3.00 ★ · 2 ratings
Version
2
Updated
27 Jul 2026
Price
$0.99
Age rating
17+
Size
25 MB
Open in App Store
Developer
Trisphere Apps LLC
Category
Lifestyle
Listing price
$0.99

Purchases the store lists

 What this app sells

From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.

Subscriptions2
Gem Genius Premium — MonthlyMonthly$4.99
Gem Genius Premium — YearlyYearly$39.99
Buy once1
Gem Genius Premium — LifetimeLifetime$79.99
Show 2 more purchases we couldn’t categorise

These are really on sale; we just can’t tell from the name whether they recur.

Tools — Special OfferTerm not stated$2.99
Gem Genius Pro ToolsTerm not stated$4.99

Method and limits

What this report can and cannot show

What a missing label means

Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.

Limits of this report

  • A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
  • Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
  • Not assessed is a state. It is never a zero and never a pass.
  • A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A human review gives an app hands-on, recorded measurements. None has been run for this app. Hands-on inspections are not yet open.
Review thresholds Read the methodology For developers

Request a correction

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