# Charity Guide vs Rock Identifier

The clearest difference is in-app purchases: Charity Guide at none against Rock Identifier's 7. Charity Guide also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Rock Identifier sells 7 in-app purchases, starting at $4.99 per 7 days. Charity Guide asks for nothing beyond the download.

Charity Guide ships an update every 4 days, Rock Identifier every 3 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Charity Guide | Rock Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (54 ratings)](https://appshunter.io/ios/app/rock-identifier-geode/id6787699645/reviews)** |
| Number of ratings | — | **54** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 16 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Thori Barker](https://appshunter.io/developer/1862447645) | [SCALINGWEB TECHNOLOGIES](https://appshunter.io/developer/1712899707) |

## What reviewers say

### Charity Guide

[App page](https://appshunter.io/ios/app/charity-guide/id6757002796)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rock Identifier

[App page](https://appshunter.io/ios/app/rock-identifier-geode/id6787699645)

Instantly identify rocks, crystals, minerals, and gemstones from a photo. Get detailed information on physical properties, geology, and estimated value. Save your finds to a personal collection and choose between scientific or spiritual modes.

**Highlights:** Photo-based identification, Detailed physical properties, Geology and formation information, Estimated value range, Collection building and export, Field Guide and Crystal Keeping modes

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Geode Pro Weekly | $4.99 | per 7 days |
| Geode Pro Monthly | $9.99 | per month |
| Geode Pro Annual | $29.99 | per year |
| 20 Scan Credits | $2.99 | one-time |
| 50 Scan Credits | $5.99 | one-time |
| 150 Scan Credits | $12.99 | one-time |
| Geode Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Charity Guide free?

Charity Guide is free to download, with no in-app purchases.

### Is Rock Identifier free?

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

### Do Charity Guide or Rock Identifier have ads?

Neither Charity Guide nor Rock Identifier shows ads.

### Which is updated more often, Charity Guide or Rock Identifier?

Charity Guide ships an update every 4 days, and Rock Identifier every 3 weeks. Most recently, Charity Guide was updated on October 15, 2026 and Rock Identifier on October 14, 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.*