# Geomaster vs Rock Identification

The clearest difference is review sentiment: Geomaster at 100% against Rock Identification's 0%. Geomaster also leads on in-app purchases (none vs 3) and rating (5.0 vs 4.8). Rock Identification's advantage is ratings volume (30 vs 4) and iOS requirement (13.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Rock Identification sells 3 in-app purchases, starting at $6.99 per 7 days. Geomaster asks for nothing beyond the download.

Geomaster holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Rock Identification has 30 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Geomaster's written reviews are positive against 0% of Rock Identification's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Geomaster | Rock Identification |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/geomaster/id6520384624/reviews)** | [4.8 (30 ratings)](https://appshunter.io/ios/app/rock-identification-rock-id/id6529527573/reviews) |
| Number of ratings | 4 | **30** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Freemium |
| Size | 11 MB | 95 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jacques Brayel Tchouanmoe](https://appshunter.io/developer/1560440986) | [Bhavinkumar Satashiya](https://appshunter.io/developer/1361485921) |

## What reviewers say

### Geomaster

[App page](https://appshunter.io/ios/app/geomaster/id6520384624)

This app serves as a comprehensive field and study companion for geology enthusiasts, students, and professionals. It offers integrated geological tools for measurement, reference, and identification, supporting both academic exploration and real-world fieldwork.

**Highlights:** Strike and Dip Compass, Trend and Plunge Compass, Geological Time Scale, Geological Dictionary, Rock Identification Trees, Mineral Classification

**Features:** macOS Compatibility

**In-app purchases:** none


### Rock Identification

[App page](https://appshunter.io/ios/app/rock-identification-rock-id/id6529527573)

Identify rocks, minerals, crystals, and gems instantly by taking a photo. Access a comprehensive database with detailed information and educational content to explore the natural world.

**Highlights:** Instant photo identification, Comprehensive rock and mineral database, Detailed specimen descriptions, Geology and gemology educational content, User-friendly interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $6.99 | per 7 days |
| Monthly Subscription | $17.99 | per month |
| Yearly Subscription | $49.99 | per year |


## Frequently asked questions

### Is Geomaster free?

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

### Is Rock Identification free?

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

### Which has better reviews, Geomaster or Rock Identification?

Geomaster is rated higher. Geomaster averages 5.0 out of 5 from 4 ratings, while Rock Identification averages 4.8 from 30 ratings.

### Do Geomaster or Rock Identification have ads?

Neither Geomaster nor Rock Identification shows ads.

### Which is updated more often, Geomaster or Rock Identification?

Geomaster ships an update every 3 months, and Rock Identification every 3 months. Most recently, Geomaster was updated on October 24, 2026 and Rock Identification on October 15, 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.*