# Stone Identifier vs Memory Explorer

The clearest difference is ads: Memory Explorer at none against Stone Identifier's shown. Memory Explorer also leads on update cadence (every 9 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Stone Identifier ships an update every 2 months, Memory Explorer every 9 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stone Identifier | Memory Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (232 ratings)](https://appshunter.io/ios/app/stone-identifier-rock-finder/id1659174609/reviews)** | — |
| Number of ratings | **232** | — |
| Positive reviews | 29.2% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 41 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hardik Jetani](https://appshunter.io/developer/1630660211) | [TinkerTanks](https://appshunter.io/developer/1580354122) |

## What reviewers say

### Stone Identifier

[App page](https://appshunter.io/ios/app/stone-identifier-rock-finder/id1659174609)

Identify rocks, crystals, and gemstones instantly by taking a photo. Explore geological surroundings, learn about over 6000 types of rocks, and build your personal rock collection. Offers professional knowledge and email support for inquiries.

**Highlights:** Photo identification of rocks, Learn about 6000+ rock types, Create personal rock collections, Explore trendy stones and their facts, Email geologist for inquiries, User-friendly design

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

**In-app purchases:** none

**What reviewers like**

- 💰 Completely free with no in-app purchases
- 📱 No subscription fees required
- 💡 Provides price range estimates for stones
- 📚 Offers educational information about rocks
- 🎯 Simple and straightforward scanning interface

**What reviewers complain about**

- 🎯 Extremely inaccurate identification results
- ⏱️ Slow loading times
- 📷 Camera displays incorrect colors
- 🔍 Cannot identify common stones correctly
- 📊 Limited database of rocks and minerals

**Reported bugs**

- Identification accuracy is severely flawed
- Camera color representation is inaccurate
- App freezes or fails to load properly
- Search function requires manual back navigation
- Same rock produces different results at different angles

**Requested features**

- Add ability to upload images from gallery
- Include price estimates for each identification result
- Add collection feature to save identified rocks
- Expand database with more rock and mineral types
- Include metals like gold and silver


### Memory Explorer

[App page](https://appshunter.io/ios/app/memory-explorer/id6798429528)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stone Identifier free?

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

### Is Memory Explorer free?

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

### Do Stone Identifier or Memory Explorer have ads?

Stone Identifier shows ads; Memory Explorer does not.

### Which is updated more often, Stone Identifier or Memory Explorer?

Stone Identifier ships an update every 2 months, and Memory Explorer every 9 days. Most recently, Stone Identifier was updated on November 3, 2026 and Memory Explorer on October 24, 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.*