# Rock Identifier vs Stone Identifier

The clearest difference is review sentiment: Rock Identifier at 64% against Stone Identifier's 24%. Rock Identifier also leads on ads (none vs shown) and rating (4.7 vs 4.3). On price, in-app purchases, monetization model and iOS requirement there is nothing between them.

Both are free to download. Rock Identifier sells 9 in-app purchases, starting at $3.99 per 7 days and Stone Identifier sells 10 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Rock Identifier holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Rock Identifier has 81K ratings behind it against 1.1K, so its average is the more settled of the two. Written reviews point the same way: 64% of Rock Identifier's written reviews are positive against 24% of Stone Identifier's.

Rock Identifier ships an update every 3 weeks, Stone Identifier every 3 months. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Rock Identifier | Stone Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (81K ratings)](https://appshunter.io/ios/app/rock-identifier-stone-id/id1546796934/reviews)** | [4.3 (1.1K ratings)](https://appshunter.io/ios/app/stone-identifier/id6443684085/reviews) |
| Number of ratings | **81K** | 1.1K |
| Positive reviews | **64.1% of reviews** | 23.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | **#27** | — |
| Size | 201 MB | 64 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Next Vision Limited](https://appshunter.io/developer/1532006906) | [Apps Labs](https://appshunter.io/developer/1648354195) |

## What reviewers say

### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-stone-id/id1546796934)

**Currently charting:** #27 Top Grossing · Education, #124 Top Free · Education (US App Store)

Instantly identify rocks, minerals, and gemstones by taking a photo. Access a comprehensive encyclopedia with detailed information on each stone, learn to distinguish real from fake gems, and explore their properties. The app also includes a metal detector and expert consultation.

**Highlights:** Photo-based rock identification, Stone and crystal encyclopedia, Real vs. fake gemstone guide, Healing properties and zodiac stones, In-app metal detector, Expert consultation service, Personal rock collection management

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock Identifier Premium | $3.99 | per 7 days |
| Rock Identifier Premium | $7.99 | per month |
| Rock Identifier Premium | $29.99 | per year |
| Rock Identifier Premium | $39.99 | per year |
| Rock Identifier Premium | $39.99 | per year |
| Rock Identifier Premium | $39.99 | per year |
| Rock Identifier Premium | $69.99 | per year |
| Rock Unlock New Skin | $1.99 | one-time |
| Rock Identifier Premium | $69.99 | one-time |

**What reviewers like**

- 🤩 Accurate rock identification
- 🤓 Extensive information on rocks
- 🧠 Helpful for learning about rocks
- 🪨 Great for rock collectors
- 🤖 Powerful AI-based identification

**What reviewers complain about**

- 💰 Expensive subscription model
- 🔢 Limited free scans per day
- 🔍 Inconsistent accuracy, sometimes wrong
- 🔀 Gives different results for same rock
- 🙅‍♀️ Poor customer support

**Reported bugs**

- App crashes or freezes
- Subscription issues and unexpected charges
- Inaccurate rock identification
- Inability to delete or edit rock entries

**Requested features**

- Ability to manually input rock names
- Option to create and manage rock collections
- More comprehensive rock/mineral database
- Improved search and filtering capabilities
- Offline mode for rock identification


### 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 Rock Identifier free?

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

### Is Stone Identifier free?

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

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

Rock Identifier is rated higher. Rock Identifier averages 4.7 out of 5 from 81K ratings, while Stone Identifier averages 4.3 from 1.1K ratings.

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

Stone Identifier shows ads; Rock Identifier does not.

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

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