# e vs Rock Identifier. Stone Scanner

The clearest difference is update cadence: Rock Identifier. Stone Scanner at every 4 days against e's every 2 months. e's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. e sells 3 in-app purchases, starting at $22.99 per 3 months and Rock Identifier. Stone Scanner sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

e ships an update every 2 months, Rock Identifier. Stone Scanner every 4 days. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | e | Rock Identifier. Stone Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/e-rocks/id1479976121/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 52 MB | 164 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mark Wrigley](https://appshunter.io/developer/1479976120) | [Valerii Kruhlyk](https://appshunter.io/developer/1849183421) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-rocks/id1479976121)

Access a comprehensive database of over 6200 mineral species with detailed facts, including names, formulas, occurrences, and properties. This offline-capable app provides quick lookups and links to a larger online mineral catalog.

**Highlights:** 6200+ mineral species database, Detailed species information, Offline access, Links to e-Rocks.com catalog, Quick and easy to use

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| e-Rocks Collectors 3 Months | $22.99 | per 3 months |
| e-Rocks Collectors 6 Months | $39.00 | per 6 months |
| e-Rocks Collectors Annual | $79.00 | per year |


### Rock Identifier. Stone Scanner

[App page](https://appshunter.io/ios/app/rock-identifier-stone-scanner/id6754607874)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock Scanner | $4.99 | per 7 days |
| Rock Scanner | $6.99 | per 7 days |
| Rock Scanner | $6.99 | per 7 days |
| Rock Scanner | $9.99 | per year |
| Rock Scanner | $19.99 | per year |
| Rock Scanner | $29.99 | per year |


## Frequently asked questions

### Is e free?

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

### Is Rock Identifier. Stone Scanner free?

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

### Do e or Rock Identifier. Stone Scanner have ads?

Neither e nor Rock Identifier. Stone Scanner shows ads.

### Which is updated more often, e or Rock Identifier. Stone Scanner?

e ships an update every 2 months, and Rock Identifier. Stone Scanner every 4 days. Most recently, e was updated on October 19, 2026 and Rock Identifier. Stone Scanner on October 12, 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.*