# Fossil Identifier vs SeedLibrary

The clearest difference is update cadence: SeedLibrary at every 6 weeks against Fossil Identifier's every 10 months. Fossil Identifier's advantage is iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Fossil Identifier ships an update every 10 months, SeedLibrary every 6 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Fossil Identifier | SeedLibrary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (14 ratings)](https://appshunter.io/ios/app/fossil-identifier-rock-and-gem/id6737520398/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 1 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ellisapps Inc.](https://appshunter.io/developer/318771862) | [Mitaanshu Agarwal](https://appshunter.io/developer/1896724075) |

## What reviewers say

### Fossil Identifier

[App page](https://appshunter.io/ios/app/fossil-identifier-rock-and-gem/id6737520398)

Instantly identify rocks, fossils, and artifacts by taking a photo. Get detailed information about their type, origin, and history. Perfect for adventurers and history buffs wanting to learn about geological and historical discoveries.

**Highlights:** Identify rocks, fossils, and artifacts, Instant identification via photo, Detailed information on origin and history, User-friendly interface, Suitable for adventurers and history enthusiasts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stone & Rock Identifier Weekly | $6.99 | per 7 days |
| Stone & Rock Identifier Annual | $34.99 | per year |


### SeedLibrary

[App page](https://appshunter.io/ios/app/seedlibrary/id6773458515)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SeedLibrary Pro Monthly | $4.99 | per month |
| SeedLibrary Pro Yearly | $24.90 | per year |
| Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Fossil Identifier free?

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

### Is SeedLibrary free?

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

### Do Fossil Identifier or SeedLibrary have ads?

Neither Fossil Identifier nor SeedLibrary shows ads.

### Which is updated more often, Fossil Identifier or SeedLibrary?

Fossil Identifier ships an update every 10 months, and SeedLibrary every 6 weeks. Most recently, Fossil Identifier was updated on October 30, 2026 and SeedLibrary on October 31, 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.*