# Fossil Identifier vs Rock Value

The clearest difference is device support: Fossil Identifier at 3 against Rock Value's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Fossil Identifier sells 2 in-app purchases, starting at $4.99 per 7 days and Rock Value sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Fossil Identifier | Rock Value |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/rock-value-stone-id/id6795194776/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Monetization | — | Subscription |
| Size | 41 MB | 71 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Ankur Dhameliya](https://appshunter.io/developer/1560934425) | [NIL AMBER UGUR](https://appshunter.io/developer/1887157994) |

## What reviewers say

### Fossil Identifier

[App page](https://appshunter.io/ios/app/fossil-identifier-fi/id6754831068)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Annual | $29.99 | per year |


### Rock Value

[App page](https://appshunter.io/ios/app/rock-value-stone-id/id6795194776)

Identify rocks by photographing them to learn their identity, estimated value, and geological formation. It provides detailed appraisals with reasons and offers offline field guides for mineral identification.

**Highlights:** Photograph and identify rocks, Estimate rock value with reasons, Learn geological formation details, Perform at-home mineral tests, Verify authenticity of claimed rocks, Organize and manage rock collections, Offline field guide for minerals

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Monthly | $19.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Fossil Identifier free?

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

### Is Rock Value free?

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

### Do Fossil Identifier or Rock Value have ads?

Neither Fossil Identifier nor Rock Value 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.*