# Engate e Desengate vs Rock Identifier | AI Scanner

The clearest difference is in-app purchases: Engate e Desengate at none against Rock Identifier | AI Scanner's 3. Engate e Desengate also leads on ads (none vs shown). Rock Identifier | AI Scanner's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Rock Identifier | AI Scanner sells 3 in-app purchases, starting at $7.99 per 7 days. Engate e Desengate asks for nothing beyond the download.

Engate e Desengate ships an update every 10 months, Rock Identifier | AI Scanner every 12 months. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Engate e Desengate | Rock Identifier | AI Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (226 ratings)](https://appshunter.io/ios/app/rock-identifier-ai-scanner/id6444720183/reviews)** |
| Number of ratings | — | **226** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 months** | Every 12 months |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 154 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CGI Software](https://appshunter.io/developer/1081834916) | [MyApps](https://appshunter.io/developer/1654400413) |

## What reviewers say

### Engate e Desengate

[App page](https://appshunter.io/ios/app/engate-e-desengate/id1525244329)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rock Identifier | AI Scanner

[App page](https://appshunter.io/ios/app/rock-identifier-ai-scanner/id6444720183)

Instantly identify rocks, crystals, gemstones, and minerals by simply taking a photo. Access detailed information about over 6,000 stones and build your personal collection. Explore the natural world with this user-friendly AI-powered tool.

**Highlights:** AI rock identification by photo, Identify rocks, minerals, crystals, gemstones, Accurate recognition via machine learning, Build personal rock collection, Access in-depth stone information, Offline identification mode

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $7.99 | per 7 days |
| Stone Identifier Premium | $14.99 | per month |
| Stone Identifier Premium | $39.99 | per year |


## Frequently asked questions

### Is Engate e Desengate free?

Engate e Desengate is free to download, with no in-app purchases.

### Is Rock Identifier | AI Scanner free?

Rock Identifier | AI Scanner is free to download, with in-app purchases available.

### Do Engate e Desengate or Rock Identifier | AI Scanner have ads?

Rock Identifier | AI Scanner shows ads; Engate e Desengate does not.

### Which is updated more often, Engate e Desengate or Rock Identifier | AI Scanner?

Engate e Desengate ships an update every 10 months, and Rock Identifier | AI Scanner every 12 months. Most recently, Engate e Desengate was updated on October 25, 2026 and Rock Identifier | AI Scanner on October 22, 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.*