# Ex Libris Events vs Stone Identifier

The clearest difference is in-app purchases: Ex Libris Events at none against Stone Identifier's 3. Stone Identifier's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Stone Identifier sells 3 in-app purchases, starting at $3.99 per 7 days. Ex Libris Events asks for nothing beyond the download.

Ex Libris Events ships an update every 3 months, Stone Identifier every 2 weeks. The most recent releases landed on October 13, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Ex Libris Events | Stone Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (27 ratings)](https://appshunter.io/ios/app/stone-identifier-gem-id/id6738606840/reviews)** |
| Number of ratings | — | **27** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 72 MB | 26 MB |
| Requires iOS | 16.0 | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ex Libris LTD](https://appshunter.io/developer/1095433456) | [Umut Bozdag](https://appshunter.io/developer/1767232549) |

## What reviewers say

### Ex Libris Events

[App page](https://appshunter.io/ios/app/ex-libris-events/id1446614436)

**Features:** Apple Wallet

**In-app purchases:** none


### Stone Identifier

[App page](https://appshunter.io/ios/app/stone-identifier-gem-id/id6738606840)

Instantly identify stones, gems, fossils, and minerals with an AI-powered scanner. Learn about their properties, origins, and even metaphysical uses. Build a personal collection of your discoveries.

**Highlights:** Instant AI stone identification, Detailed information on 4000+ stone types, Learn about formation, properties, and origins, Personal digital stone collection, Expert AI chat for stone inquiries, Ad-free premium experience

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stone ID - Pro - Weekly | $3.99 | per 7 days |
| Stone ID - Pro - Monthly | $9.99 | per month |
| Stone ID - Pro - Annual | $24.99 | per year |


## Frequently asked questions

### Is Ex Libris Events free?

Ex Libris Events is free to download, with no in-app purchases.

### Is Stone Identifier free?

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

### Do Ex Libris Events or Stone Identifier have ads?

Neither Ex Libris Events nor Stone Identifier shows ads.

### Which is updated more often, Ex Libris Events or Stone Identifier?

Ex Libris Events ships an update every 3 months, and Stone Identifier every 2 weeks. Most recently, Ex Libris Events was updated on October 13, 2026 and Stone Identifier 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.*