# Stamp Value Stamp Identifier° vs Rock Value

The clearest difference is rating: Stamp Value Stamp Identifier° at 5.0 against Rock Value's 1.0. Stamp Value Stamp Identifier° also leads on update cadence (every 2 weeks vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Stamp Value Stamp 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.

Stamp Value Stamp Identifier° holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Stamp Value Stamp Identifier° ships an update every 2 weeks, Rock Value every 3 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | Stamp Value Stamp Identifier° | Rock Value |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stamp-value-stamp-identifier/id6777763601/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/rock-value-stone-id/id6795194776/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Subscription | Subscription |
| Size | 20 MB | 71 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [EBUZER SIMSEK](https://appshunter.io/developer/1708825740) | [NIL AMBER UGUR](https://appshunter.io/developer/1887157994) |

## What reviewers say

### Stamp Value Stamp Identifier°

[App page](https://appshunter.io/ios/app/stamp-value-stamp-identifier/id6777763601)

Instantly identify and value stamps using advanced AI technology. Simply take a photo or upload an image to get accurate results for common to rare finds. Designed for collectors and sellers, it provides quick insights into stamp worth.

**Highlights:** Instant stamp recognition via camera, Estimated market value for stamps, AI-powered detection, Simple and fast user experience, Designed for collectors and sellers

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Yearly | $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 Stamp Value Stamp Identifier° free?

Stamp Value Stamp 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.

### Which has better reviews, Stamp Value Stamp Identifier° or Rock Value?

Stamp Value Stamp Identifier° is rated higher. Stamp Value Stamp Identifier° averages 5.0 out of 5 from 2 ratings, while Rock Value averages 1.0 from 1 ratings.

### Do Stamp Value Stamp Identifier° or Rock Value have ads?

Neither Stamp Value Stamp Identifier° nor Rock Value shows ads.

### Which is updated more often, Stamp Value Stamp Identifier° or Rock Value?

Stamp Value Stamp Identifier° ships an update every 2 weeks, and Rock Value every 3 months. Most recently, Stamp Value Stamp Identifier° was updated on October 31, 2026 and Rock Value on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*