# GeoLOG vs Stone Identifier

The clearest difference is in-app purchases: GeoLOG at none against Stone Identifier's 10. GeoLOG also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence there is nothing between them.

Both are free to download. Stone Identifier sells 10 in-app purchases, starting at $2.99 per 7 days. GeoLOG asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | GeoLOG | Stone Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (1.1K ratings)](https://appshunter.io/ios/app/stone-identifier/id6443684085/reviews)** |
| Number of ratings | — | **1.1K** |
| Positive reviews | — | 23.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 64 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Państwowy Instytut Geologiczny](https://appshunter.io/developer/1291754161) | [Apps Labs](https://appshunter.io/developer/1648354195) |

## What reviewers say

### GeoLOG

[App page](https://appshunter.io/ios/app/geolog-geological-mapping/id1291754162)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stone Identifier

[App page](https://appshunter.io/ios/app/stone-identifier/id6443684085)

Instantly identify rocks, stones, gems, and crystals by taking a photo or uploading an image. Get accurate results in seconds with a rich database and user-friendly interface. Perfect for both geologists and enthusiasts.

**Highlights:** Identify Rocks, Gems, and Crystals, Accurate identification results, Fast and convenient tool, Extensive learning database, User-friendly interface, Record geological findings

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock Identifier | $2.99 | per 7 days |
| Rock ID | $2.99 | per 7 days |
| Rock Identifier | $6.99 | per 7 days |
| Rock ID | $6.99 | per 7 days |
| Sale annual subscription | $9.99 | per year |
| Rock Identifier | $9.99 | per month |
| Stone ID | $14.99 | per month |
| Stone Identifier | $19.99 | per year |
| Rock ID | $19.99 | per year |
| Stone Identifier | $39.99 | per year |

**What reviewers like**

- ⭐ Accurate rock identification
- 🔍 Comprehensive mineral classification
- 👍 User-friendly interface

**What reviewers complain about**

- 🤔 Inconsistent or inaccurate results
- 💰 Paywall for full functionality
- 🚫 Limited free scans
- 📚 Inability to identify rare/mixed gems

**Reported bugs**

- Misidentifies known mineral samples
- Provides incorrect or confusing results

**Requested features**

- Expand free scan limit
- Improve accuracy and precision
- Add history/save feature
- Enhance identification for rare/mixed gems


## Frequently asked questions

### Is GeoLOG free?

GeoLOG 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 GeoLOG or Stone Identifier have ads?

Stone Identifier shows ads; GeoLOG does not.

### Which is updated more often, GeoLOG or Stone Identifier?

GeoLOG ships an update every 3 months, and Stone Identifier every 3 months. Most recently, GeoLOG was updated on November 3, 2026 and Stone Identifier on November 3, 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.*