# Ruby Glint vs Rock Nerd

The clearest difference is ratings volume: Ruby Glint at 210 against Rock Nerd's 6. On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Ruby Glint sells 5 in-app purchases, starting at $6.99 per 7 days and Rock Nerd sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Ruby Glint against 4.7 for Rock Nerd. That said, the two scores are not equally well evidenced: Ruby Glint has 210 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 48% of Ruby Glint's written reviews are positive against 50% of Rock Nerd's.

Ruby Glint ships an update every 11 days, Rock Nerd every 9 days. Both last shipped on October 17, 2026.

## The numbers

| Metric | Ruby Glint | Rock Nerd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (210 ratings)](https://appshunter.io/ios/app/ruby-glint-rock-identifier/id6651859991/reviews) | [4.7 (6 ratings)](https://appshunter.io/ios/app/rock-nerd-rockhound-map-guide/id6760951948/reviews) |
| Number of ratings | **210** | 6 |
| Positive reviews | 47.6% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 9 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 110 MB | 107 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Ruby Glint Technologies Co., Ltd](https://appshunter.io/developer/1764085782) | [Terry Brazil](https://appshunter.io/developer/1886983801) |

## What reviewers say

### Ruby Glint

[App page](https://appshunter.io/ios/app/ruby-glint-rock-identifier/id6651859991)

Instantly identify rocks, crystals, minerals, and gemstones by taking or uploading a photo. Learn their names, properties, origins, and even their value. Explore a global marketplace and track your own collection.

**Highlights:** Photo-based identification, Detailed stone information, Rock and mineral location map, Learning modules, Global gemstone marketplace, Collection tracker

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Tools Premium Weekly | $6.99 | per 7 days |
| Monthly Unlimited | $9.99 | per month |
| Yearly Unlimited | $29.99 | per year |
| Yearly Unlimited | $39.99 | per year |
| Yearly Unlimited | $69.99 | per year |


### Rock Nerd

[App page](https://appshunter.io/ios/app/rock-nerd-rockhound-map-guide/id6760951948)

Discover and identify rocks with a comprehensive map of over 2,300 locations. Track your finds, connect with other enthusiasts, and learn about geology. Premium features unlock worldwide access and advanced community tools.

**Highlights:** 2,300+ rockhounding locations, Smart regional rock identification wizard, Personalized collection tracker (My Vault), Rock Buddy matching for hunting partners, Trip planner and sharing, Community activity feed and messaging

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock Nerd Monthly Subscription | $3.99 | per month |
| Rock Nerd Yearly Subscription | $39.99 | per year |
| Rock Nerd Lifetime Premium | $99.99 | one-time |


## Frequently asked questions

### Is Ruby Glint free?

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

### Is Rock Nerd free?

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

### Which has better reviews, Ruby Glint or Rock Nerd?

Ruby Glint and Rock Nerd are both rated 4.7 out of 5 on the App Store, from 210 and 6 ratings respectively.

### Do Ruby Glint or Rock Nerd have ads?

Neither Ruby Glint nor Rock Nerd shows ads.

### Which is updated more often, Ruby Glint or Rock Nerd?

Ruby Glint ships an update every 11 days, and Rock Nerd every 9 days. Most recently, Ruby Glint was updated on October 17, 2026 and Rock Nerd on October 17, 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.*