# Rock Identifier vs SimCPR PRO

The clearest difference is device support: SimCPR PRO at 3 against Rock Identifier's 1. SimCPR PRO also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Rock Identifier sells 3 in-app purchases, starting at $5.99 per 7 days and SimCPR PRO sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Rock Identifier ships an update every 3 weeks, SimCPR PRO every 2 weeks. The most recent releases landed on September 15, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Rock Identifier | SimCPR PRO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 19 MB | 150 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anton Pustovidko](https://appshunter.io/developer/1805645170) | [SimCPR](https://appshunter.io/developer/1704341430) |

## What reviewers say

### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-gem-scanner/id6751424923)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Weekly | $5.99 | per 7 days |
| Unlimited Weekly | $5.99 | per 7 days |
| Lifetime | $29.99 | one-time |


### SimCPR PRO

[App page](https://appshunter.io/ios/app/simcpr-pro/id6759217379)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SimCPR PRO Certificate 10 pack | $9.90 | one-time |
| SimCPR PRO Certificate 100 pack | $39.00 | one-time |
| SimCPR PRO Certificate 50 pack | $79.00 | one-time |


## Frequently asked questions

### Is Rock Identifier free?

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

### Is SimCPR PRO free?

SimCPR PRO is free to download, with in-app purchases available.

### Do Rock Identifier or SimCPR PRO have ads?

Neither Rock Identifier nor SimCPR PRO shows ads.

### Which is updated more often, Rock Identifier or SimCPR PRO?

Rock Identifier ships an update every 3 weeks, and SimCPR PRO every 2 weeks. Most recently, Rock Identifier was updated on September 15, 2026 and SimCPR PRO on September 11, 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.*