# Stone Identifier vs Rock Gem Crystal Identifier

The clearest difference is in-app purchases: Rock Gem Crystal Identifier at none against Stone Identifier's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Stone Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. Rock Gem Crystal Identifier asks for nothing beyond the download.

Stone Identifier ships an update weekly, Rock Gem Crystal Identifier fortnightly. The most recent releases landed on September 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Stone Identifier | Rock Gem Crystal Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/rock-gem-crystal-identifier/id6745550607/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | — | Free |
| Size | 24 MB | 3 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Shayan Zahid](https://appshunter.io/developer/1786666289) | [Benefit Virtue Technologies Limited](https://appshunter.io/developer/1707508178) |

## What reviewers say

### Stone Identifier

[App page](https://appshunter.io/ios/app/stone-identifier-stoneai/id6742713859)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $4.99 | per 7 days |
| Premium Access | $24.99 | per year |


### Rock Gem Crystal Identifier

[App page](https://appshunter.io/ios/app/rock-gem-crystal-identifier/id6745550607)

Instantly identify rocks, gems, and crystals using AI. Get detailed information on their properties, origin, and rarity. Save your discoveries and learn the stories behind your collection.

**Highlights:** AI-powered stone recognition, Detailed stone profiles, Information on properties, rarity, and origin, Personal collection management, Identification history, Privacy-focused data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is Stone Identifier free?

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

### Is Rock Gem Crystal Identifier free?

Rock Gem Crystal Identifier is free to download, with no in-app purchases.

### Do Stone Identifier or Rock Gem Crystal Identifier have ads?

Neither Stone Identifier nor Rock Gem Crystal Identifier shows ads.

### Which is updated more often, Stone Identifier or Rock Gem Crystal Identifier?

Stone Identifier ships an update weekly, and Rock Gem Crystal Identifier fortnightly. Most recently, Stone Identifier was updated on September 20, 2026 and Rock Gem Crystal Identifier on October 6, 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.*