# Stone Gem & Crystal Identifier vs bioApS

The clearest difference is in-app purchases: bioApS at none against Stone Gem & Crystal Identifier's 3. bioApS also leads on update cadence (daily vs every 3 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Stone Gem & Crystal Identifier sells 3 in-app purchases, starting at $7.99 per 7 days. bioApS asks for nothing beyond the download.

Stone Gem & Crystal Identifier ships an update every 3 months, bioApS daily. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Stone Gem & Crystal Identifier | bioApS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (59 ratings)](https://appshunter.io/ios/app/stone-gem-and-crystal-identifier/id6717590500/reviews)** | — |
| Number of ratings | **59** | — |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 20 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAFE AI NETWORK PTE. LTD.](https://appshunter.io/developer/1437234830) | [Universidad de Valencia](https://appshunter.io/developer/669422152) |

## What reviewers say

### Stone Gem & Crystal Identifier

[App page](https://appshunter.io/ios/app/stone-gem-and-crystal-identifier/id6717590500)

Identify rocks, gems, crystals, and diamonds with AI-powered accuracy. Get value estimations, authenticity checks, and detailed analysis of your finds. Discover hotspots and learn about the history of your treasures.

**Highlights:** AI-powered rock, gem, and crystal identification, Value estimation and authenticity check, Detailed mineral analysis, Diamond and gem valuation, Metal detector functionality, Ask AI experts for advice, Rarity score for finds, Hotspot discovery for rock hunting

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock Identifier Pro | $7.99 | per 7 days |
| Rock Identifier Pro | $9.99 | per month |
| Rock Identifier Pro | $29.99 | per year |


### bioApS

[App page](https://appshunter.io/ios/app/bioaps/id6739771781)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stone Gem & Crystal Identifier free?

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

### Is bioApS free?

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

### Do Stone Gem & Crystal Identifier or bioApS have ads?

Neither Stone Gem & Crystal Identifier nor bioApS shows ads.

### Which is updated more often, Stone Gem & Crystal Identifier or bioApS?

Stone Gem & Crystal Identifier ships an update every 3 months, and bioApS daily. Most recently, Stone Gem & Crystal Identifier was updated on October 30, 2026 and bioApS on October 25, 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.*