# Rock Identifier vs 晶棱客

The clearest difference is in-app purchases: 晶棱客 at none against Rock Identifier's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Rock Identifier sells 3 in-app purchases, starting at $2.99 per 7 days. 晶棱客 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Rock Identifier | 晶棱客 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 33 MB | 88 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DEVSRANK](https://appshunter.io/developer/1716669578) | [软科互动(深圳)科技有限公司](https://appshunter.io/developer/1259651527) |

## What reviewers say

### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-stonify/id6767109268)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock Identifier Weekly | $2.99 | per 7 days |
| Rock Identifier Yearly | $14.99 | per year |
| Rock Identifier Yearly 3 Days Trail | $14.99 | per year |


### 晶棱客

[App page](https://appshunter.io/ios/app/id6801030950)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rock Identifier free?

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

### Is 晶棱客 free?

晶棱客 is free to download, with no in-app purchases.

### Do Rock Identifier or 晶棱客 have ads?

Neither Rock Identifier nor 晶棱客 shows ads.

### Which is updated more often, Rock Identifier or 晶棱客?

Rock Identifier ships an update every 3 weeks, and 晶棱客 every 3 weeks. Most recently, Rock Identifier was updated on November 9, 2026 and 晶棱客 on November 10, 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.*