# Stone Identifier vs Rock Identifier

The clearest difference is ads: Rock Identifier at none against Stone Identifier's shown. Stone Identifier's advantage is ratings volume (1.1K vs 4) and rating (4.3 vs 4.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Stone Identifier sells 10 in-app purchases, starting at $2.99 per 7 days and Rock Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Stone Identifier holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Stone Identifier has 1.1K ratings behind it against 4, so its average is the more settled of the two.

Stone Identifier ships an update every 3 months, Rock Identifier every 7 months. The most recent releases landed on October 25, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Stone Identifier | Rock Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (1.1K ratings)](https://appshunter.io/ios/app/stone-identifier/id6443684085/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/rock-identifier-stone-id/id6749259063/reviews) |
| Number of ratings | **1.1K** | 4 |
| Positive reviews | 23.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 64 MB | 14 MB |
| Requires iOS | **16.6** | 18.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Apps Labs](https://appshunter.io/developer/1648354195) | [Orkhan Alizada](https://appshunter.io/developer/1711477045) |

## What reviewers say

### 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


### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-stone-id/id6749259063)

Instantly identify rocks, minerals, and crystals by taking a photo. Get detailed information, build a personal collection, and explore guided articles about geology. Turn your curiosity into knowledge.

**Highlights:** Instant photo identification, Detailed rock information, Personal rock library, Guided geology articles, Notes and locality logging

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Yearly | $29.99 | per year |


## Frequently asked questions

### Is Stone Identifier free?

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

### Is Rock Identifier free?

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

### Which has better reviews, Stone Identifier or Rock Identifier?

Stone Identifier is rated higher. Stone Identifier averages 4.3 out of 5 from 1.1K ratings, while Rock Identifier averages 4.0 from 4 ratings.

### Do Stone Identifier or Rock Identifier have ads?

Stone Identifier shows ads; Rock Identifier does not.

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

Stone Identifier ships an update every 3 months, and Rock Identifier every 7 months. Most recently, Stone Identifier was updated on October 25, 2026 and Rock Identifier on October 13, 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.*