# Stone Identifier vs 中文 / Chinese

The clearest difference is price: Stone Identifier at Free against 中文 / Chinese's $1.99. 中文 / Chinese's advantage is in-app purchases (none vs 10) and ads (none vs shown). On iOS requirement there is nothing between them.

Stone Identifier is free to download; 中文 / Chinese costs $1.99 up front. Stone Identifier sells 10 in-app purchases, starting at $2.99 per 7 days. 中文 / Chinese asks for nothing beyond the download.

Stone Identifier ships an update every 3 months, 中文 / Chinese every 2 weeks. The most recent releases landed on October 18, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Stone Identifier | 中文 / Chinese |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| 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 | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 29 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Apps Labs](https://appshunter.io/developer/1648354195) | [Apecoo LLC](https://appshunter.io/developer/1826972001) |

## 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


### 中文 / Chinese

[App page](https://appshunter.io/ios/app/chinese/id6753348489)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stone Identifier free?

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

### Is 中文 / Chinese free?

中文 / Chinese costs $1.99, with no in-app purchases.

### Do Stone Identifier or 中文 / Chinese have ads?

Stone Identifier shows ads; 中文 / Chinese does not.

### Which is updated more often, Stone Identifier or 中文 / Chinese?

Stone Identifier ships an update every 3 months, and 中文 / Chinese every 2 weeks. Most recently, Stone Identifier was updated on October 18, 2026 and 中文 / Chinese on September 9, 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.*