# Stone Identifier vs Rock ID

The clearest difference is ads: Rock ID at none against Stone Identifier's shown. Rock ID also leads on update cadence (monthly vs every 3 months) and review sentiment (37% vs 23%). On price, rating, ratings volume and in-app purchases 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 ID sells 13 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for Stone Identifier against 4.4 for Rock ID. Both are backed by a comparable volume of ratings — 1.1K and 3.1K respectively. Written reviews are what separate them: 23% of Stone Identifier's written reviews are positive against 37% of Rock ID's.

Stone Identifier ships an update every 3 months, Rock ID monthly. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Stone Identifier | Rock ID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (1.1K ratings)](https://appshunter.io/ios/app/stone-identifier/id6443684085/reviews) | **[4.4 (3.1K ratings)](https://appshunter.io/ios/app/rock-id-stone-identifier/id6469999508/reviews)** |
| Number of ratings | 1.1K | **3.1K** |
| Positive reviews | 23.0% of reviews | **37.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 64 MB | 48 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Apps Labs](https://appshunter.io/developer/1648354195) | [AIBY](https://appshunter.io/developer/1458102137) |

## 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 ID

[App page](https://appshunter.io/ios/app/rock-id-stone-identifier/id6469999508)

Instantly identify rocks, minerals, and gems by snapping a photo. Explore detailed profiles, manage your personal collections, and keep a log of all your discoveries. Become a geology expert with this comprehensive guide.

**Highlights:** Instant AI-powered stone identification, Vast catalog of rock profiles, Personal rock and mineral collections, Detailed history of identifications, Learn rock composition and origin, Distinguish real gems from fakes

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock ID PRO | $4.99 | per 7 days |
| Rock ID PRO | $4.99 | per 7 days |
| Weekly access (3 days trial) | $5.99 | per 7 days |
| Weekly access | $5.99 | per 7 days |
| Weekly access (3 days trial) | $6.99 | per 7 days |
| Weekly access | $6.99 | per 7 days |
| Rock ID PRO | $6.99 | per 7 days |
| Rock ID PRO | $6.99 | per 7 days |
| Yearly premium subscription | $19.99 | per year |
| Yearly access (3 days trial) | $19.99 | per year |
| Yearly premium subscription | $29.99 | per year |
| Rock ID PRO | $29.99 | per year |
| Yearly premium subscription | $39.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Instant identification
- 💡 Extensive stone library
- 🎓 Helpful for education

**What reviewers complain about**

- 🐛 Inconsistent identification accuracy
- 💰 Paywall after limited free scans
- 🤔 Questionable reliability for valuable stones
- 📷 Camera quality issues for small gems

**Reported bugs**

- Incorrect identification of common stones
- Failure to recognize obvious stone types
- Inability to scan certain stones

**Requested features**

- More detailed stone information
- Improved identification accuracy
- Ability to manually correct misidentifications
- Option to disable paywall for limited use


## Frequently asked questions

### Is Stone Identifier free?

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

### Is Rock ID free?

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

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

Rock ID is rated higher. Stone Identifier averages 4.3 out of 5 from 1.1K ratings, while Rock ID averages 4.4 from 3.1K ratings.

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

Stone Identifier shows ads; Rock ID does not.

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

Stone Identifier ships an update every 3 months, and Rock ID monthly. Most recently, Stone Identifier was updated on October 24, 2026 and Rock ID on October 23, 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.*