# Development Card cost eval vs Rock Identifier

The clearest difference is in-app purchases: Development Card cost eval at none against Rock Identifier's 5. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Rock Identifier sells 5 in-app purchases, starting at $4.99 per 7 days. Development Card cost eval asks for nothing beyond the download.

## The numbers

| Metric | Development Card cost eval | Rock Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rock-identifier-petra/id6756741676/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 37 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Germain](https://appshunter.io/developer/1672649621) | [MUSTAFA RESIT SAHIN](https://appshunter.io/developer/1787713188) |

## What reviewers say

### Development Card cost eval

[App page](https://appshunter.io/ios/app/development-card-cost-eval/id1673441646)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-petra/id6756741676)

Instantly identify rocks, minerals, and crystals by taking a photo. Get clear details, save your discoveries, and create personalized profiles for your collection. Explore traditional crystal interpretations for learning and enjoyment.

**Highlights:** AI-powered rock identification, Detailed identification results, Personalized stone collection, Customizable rock profiles, Traditional crystal interpretations, Offline saving of scans

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Rock Identification | $4.99 | per 7 days |
| Unlimited Rock Identification | $6.99 | per 7 days |
| Unlimited Rock Identification | $7.99 | per month |
| Unlimited Rock Identification | $19.99 | per year |
| Unlimited Rock Identification | $24.99 | per year |


## Frequently asked questions

### Is Development Card cost eval free?

Development Card cost eval is free to download, with no in-app purchases.

### Is Rock Identifier free?

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

### Do Development Card cost eval or Rock Identifier have ads?

Neither Development Card cost eval nor Rock Identifier shows ads.

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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.*