# Mdcgs Connect vs Crystal Identifier

The clearest difference is in-app purchases: Mdcgs Connect at none against Crystal Identifier's 2. Crystal Identifier's advantage is update cadence (every 5 days vs every 17 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Mdcgs Connect ships an update every 17 months, Crystal Identifier every 5 days. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Mdcgs Connect | Crystal Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/crystal-identifier-stoneclip/id6744538893/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 45 MB | 6 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [eReleGo Technologies Pvt Ltd](https://appshunter.io/developer/1516161345) | [Curvachip LLC](https://appshunter.io/developer/1774903560) |

## What reviewers say

### Mdcgs Connect

[App page](https://appshunter.io/ios/app/mdcgs-connect/id6473355512)

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

**In-app purchases:** none


### Crystal Identifier

[App page](https://appshunter.io/ios/app/crystal-identifier-stoneclip/id6744538893)

Instantly identify rocks, gems, and minerals using AI by taking a photo or selecting from your gallery. Get detailed descriptions, ask follow-up questions, and keep a history of your discoveries. Perfect for collectors and students.

**Highlights:** AI-powered instant identification, In-depth rock descriptions, Ask follow-up questions about stones, Discovery history tracking, Privacy-focused data collection

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StoneClip Premium Weekly | $4.99 | per 7 days |
| StoneClip Premium Yearly | $24.99 | per year |


## Frequently asked questions

### Is Mdcgs Connect free?

Mdcgs Connect is free to download, with no in-app purchases.

### Is Crystal Identifier free?

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

### Do Mdcgs Connect or Crystal Identifier have ads?

Neither Mdcgs Connect nor Crystal Identifier shows ads.

### Which is updated more often, Mdcgs Connect or Crystal Identifier?

Mdcgs Connect ships an update every 17 months, and Crystal Identifier every 5 days. Most recently, Mdcgs Connect was updated on November 4, 2026 and Crystal Identifier on October 30, 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.*