# Stone Identifier vs ESF Mobile

The clearest difference is in-app purchases: ESF Mobile at none against Stone Identifier's 2. On price, ads, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Stone Identifier | ESF Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (25 ratings)](https://appshunter.io/ios/app/stone-identifier-gemstone-id/id6742487438/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 87 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edgerzhon Khomidov](https://appshunter.io/developer/1780610144) | [UC Merced](https://appshunter.io/developer/1148124271) |

## What reviewers say

### Stone Identifier

[App page](https://appshunter.io/ios/app/stone-identifier-gemstone-id/id6742487438)

Instantly identify rocks and minerals by taking a photo. Get detailed information on composition, origin, and geological background. Save your findings and expand your knowledge of the natural world.

**Highlights:** AI-powered rock recognition, Instant photo identification, Detailed analysis of stones, Scan history for saved items, User-friendly interface, Educational resource for geology

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stone identifier Pro | $4.99 | per 7 days |
| Stone identifier Pro Trial | $4.99 | per 7 days |


### ESF Mobile

[App page](https://appshunter.io/ios/app/esf-mobile/id6752670873)

**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 ESF Mobile free?

ESF Mobile is free to download, with no in-app purchases.

### Do Stone Identifier or ESF Mobile have ads?

Neither Stone Identifier nor ESF Mobile shows ads.

---

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