# Rock Identifier vs Gem Identifier

The clearest difference is rating: Rock Identifier at 4.5 against Gem Identifier's 1.0. Rock Identifier also leads on update cadence (every 9 days vs every 9 months) and ratings volume (235 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Rock Identifier sells 3 in-app purchases, starting at $6.99 per 7 days and Gem Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Rock Identifier holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Rock Identifier has 235 ratings behind it against 1, so its average is the more settled of the two.

Rock Identifier ships an update every 9 days, Gem Identifier every 9 months. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Rock Identifier | Gem Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (235 ratings)](https://appshunter.io/ios/app/rock-identifier-gem-value/id6752249234/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/gem-identifier-scanner/id6753644183/reviews) |
| Number of ratings | **235** | 1 |
| Positive reviews | 70.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 9 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 52 MB | 20 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [nurten cay](https://appshunter.io/developer/1835928050) | [Saif Ullah Sajid](https://appshunter.io/developer/1527861472) |

## What reviewers say

### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-gem-value/id6752249234)

Identify rocks, minerals, crystals, and gemstones instantly with a photo. Get detailed information on properties, hardness, and value. Learn to distinguish authentic stones from imitations.

**Highlights:** Instant rock, mineral, crystal & gemstone identification, Detailed stone information (name, hardness, properties), Estimated gemstone value ranges & rarity insights, Authenticity indicators for imitations/treatments, Compare similar stones, Save favorites and build a collection

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| rock_weekly | $6.99 | per 7 days |
| rock_yearly | $39.99 | per year |
| rock_yearly_free_trial | $49.99 | per year |


### Gem Identifier

[App page](https://appshunter.io/ios/app/gem-identifier-scanner/id6753644183)

Instantly identify gemstones, rocks, and minerals by taking a photo. This app uses advanced AI and a global database to provide detailed information about thousands of gems, helping you learn and build a personal collection.

**Highlights:** Instant AI-powered gem identification, Detailed information on gems and minerals, Create and manage a personal gem collection, High-precision image recognition, User-friendly interface, Offline access to saved results

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gemstone Identifier Pro Weekly | $4.99 | per 7 days |
| Gemstone Identifier Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is Rock Identifier free?

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

### Is Gem Identifier free?

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

### Which has better reviews, Rock Identifier or Gem Identifier?

Rock Identifier is rated higher. Rock Identifier averages 4.5 out of 5 from 235 ratings, while Gem Identifier averages 1.0 from 1 ratings.

### Do Rock Identifier or Gem Identifier have ads?

Neither Rock Identifier nor Gem Identifier shows ads.

### Which is updated more often, Rock Identifier or Gem Identifier?

Rock Identifier ships an update every 9 days, and Gem Identifier every 9 months. Most recently, Rock Identifier was updated on November 12, 2026 and Gem Identifier on November 5, 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.*