# 12Bart vs Stone Identifier

The clearest difference is price: Stone Identifier at Free against 12Bart's $29.99. Stone Identifier also leads on device support (3 vs 1). 12Bart's advantage is ads (none vs shown). On update cadence, in-app purchases and iOS requirement there is nothing between them.

Stone Identifier is free to download; 12Bart costs $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

12Bart ships an update every 3 months, Stone Identifier every 2 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 12Bart | Stone Identifier |
| --- | --- | --- |
| Price | $29.99 | **Free** |
| Rating | — | **[3.7 (232 ratings)](https://appshunter.io/ios/app/stone-identifier-rock-finder/id1659174609/reviews)** |
| Number of ratings | — | **232** |
| Positive reviews | — | 29.2% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 35 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bright Solutions for Dyslexia, Inc.](https://appshunter.io/developer/637391425) | [Hardik Jetani](https://appshunter.io/developer/1630660211) |

## What reviewers say

### 12Bart

[App page](https://appshunter.io/ios/app/12bart/id1126654649)

**In-app purchases:** none


### Stone Identifier

[App page](https://appshunter.io/ios/app/stone-identifier-rock-finder/id1659174609)

Identify rocks, crystals, and gemstones instantly by taking a photo. Explore geological surroundings, learn about over 6000 types of rocks, and build your personal rock collection. Offers professional knowledge and email support for inquiries.

**Highlights:** Photo identification of rocks, Learn about 6000+ rock types, Create personal rock collections, Explore trendy stones and their facts, Email geologist for inquiries, User-friendly design

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

**In-app purchases:** none

**What reviewers like**

- 💰 Completely free with no in-app purchases
- 📱 No subscription fees required
- 💡 Provides price range estimates for stones
- 📚 Offers educational information about rocks
- 🎯 Simple and straightforward scanning interface

**What reviewers complain about**

- 🎯 Extremely inaccurate identification results
- ⏱️ Slow loading times
- 📷 Camera displays incorrect colors
- 🔍 Cannot identify common stones correctly
- 📊 Limited database of rocks and minerals

**Reported bugs**

- Identification accuracy is severely flawed
- Camera color representation is inaccurate
- App freezes or fails to load properly
- Search function requires manual back navigation
- Same rock produces different results at different angles

**Requested features**

- Add ability to upload images from gallery
- Include price estimates for each identification result
- Add collection feature to save identified rocks
- Expand database with more rock and mineral types
- Include metals like gold and silver


## Frequently asked questions

### Is 12Bart free?

12Bart costs $29.99, with no in-app purchases.

### Is Stone Identifier free?

Stone Identifier is free to download, with no in-app purchases.

### Do 12Bart or Stone Identifier have ads?

Stone Identifier shows ads; 12Bart does not.

### Which is updated more often, 12Bart or Stone Identifier?

12Bart ships an update every 3 months, and Stone Identifier every 2 months. Most recently, 12Bart was updated on October 26, 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.*