# Note Genius vs Stone Identifier

The clearest difference is in-app purchases: Note Genius at none against Stone Identifier's 5. Stone Identifier's advantage is update cadence (every 2 months vs every 15 months) and ratings volume (54 vs 5). On price, rating and ads there is nothing between them.

Both are free to download. Stone Identifier sells 5 in-app purchases, starting at $4.99 per 7 days. Note Genius asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Note Genius against 4.9 for Stone Identifier. That said, the two scores are not equally well evidenced: Stone Identifier has 54 ratings behind it against 5, so its average is the more settled of the two.

Note Genius ships an update every 15 months, Stone Identifier every 2 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Note Genius | Stone Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/note-genius/id6670325647/reviews)** | [4.9 (54 ratings)](https://appshunter.io/ios/app/stone-identifier-gemalyze/id6738392969/reviews) |
| Number of ratings | 5 | **54** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Monetization | **Free** | Freemium |
| Size | 7 MB | 58 MB |
| Requires iOS | 17.5 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tyler Himes](https://appshunter.io/developer/1765804903) | [Picture Vision Studio LLC](https://appshunter.io/developer/1573119875) |

## What reviewers say

### Note Genius

[App page](https://appshunter.io/ios/app/note-genius/id6670325647)

Master piano keys and music notes with instant feedback, mimicking a personal tutor. Track your learning progress and customize which notes you focus on to become a note genius.

**Highlights:** Learn piano keys, Instant feedback, Progress tracking, Selectable notes to learn, Hear piano notes

**In-app purchases:** none


### Stone Identifier

[App page](https://appshunter.io/ios/app/stone-identifier-gemalyze/id6738392969)

Instantly identify gemstones, rocks, and minerals using your camera or photo library with advanced AI. Explore detailed information, learn about birthstones, and use a magnetic sensor to detect specific materials. An AI chat assistant provides deeper insights into your discoveries.

**Highlights:** Instant AI-powered identification, Detailed rock and mineral data, Birthstone information, AI chat assistance, Magnetic sensor for detection, User-friendly interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per 7 days |
| Premium | $24.99 | per year |
| Premium | $29.99 | per year |
| Premium | $39.99 | per year |
| Premium Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Note Genius free?

Note Genius is free to download, with no in-app purchases.

### Is Stone Identifier free?

Stone Identifier is free to download, with in-app purchases available.

### Which has better reviews, Note Genius or Stone Identifier?

Note Genius is rated higher. Note Genius averages 5.0 out of 5 from 5 ratings, while Stone Identifier averages 4.9 from 54 ratings.

### Do Note Genius or Stone Identifier have ads?

Neither Note Genius nor Stone Identifier shows ads.

### Which is updated more often, Note Genius or Stone Identifier?

Note Genius ships an update every 15 months, and Stone Identifier every 2 months. Most recently, Note Genius was updated on October 20, 2026 and Stone Identifier on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*