# Rockd vs Rock ID

Rockd and Rock ID both sit at 4.4 stars, but that hides the real split: 74% of Rockd's written reviews are positive against 37% of Rock ID's. Rockd also leads on in-app purchases (none vs 10). Rock ID's advantage is ratings volume (3.2K vs 187) and update cadence (monthly vs every 3 months). On price, rating, ads and device support there is nothing between them.

Both are free to download. Rock ID sells 9 in-app purchases, starting at $4.99 per 7 days. Rockd asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Rockd against 4.4 for Rock ID. That said, the two scores are not equally well evidenced: Rock ID has 3.2K ratings behind it against 187, so its average is the more settled of the two. Written reviews are what separate them: 74% of Rockd's written reviews are positive against 37% of Rock ID's.

Rockd ships an update every 3 months, Rock ID monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Rockd | Rock ID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (187 ratings)](https://appshunter.io/ios/app/rockd/id1153056624/reviews) | **[4.4 (3.2K ratings)](https://appshunter.io/ios/app/rock-id-stone-identifier/id6469999508/reviews)** |
| Number of ratings | 187 | **3.2K** |
| Positive reviews | **73.6% of reviews** | 37.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 259 MB | 48 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [University of Wisconsin-Madison Shared Apps](https://appshunter.io/developer/908478605) | [AIBY](https://appshunter.io/developer/1458102137) |

## What reviewers say

### Rockd

[App page](https://appshunter.io/ios/app/rockd/id1153056624)

Discover and document the geology around you. Access global geologic maps, 3D globes, and detailed summaries of your surroundings. Contribute your own observations and track your exploration of Earth's geologic history.

**Highlights:** Interactive global geologic maps, 3D virtual globe exploration, Field observation logging, Offline map caching, Paleogeographic map access, Stratigraphic column viewing, Geologic literature integration

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

**In-app purchases:** none

**What reviewers like**

- 🗺️ Comprehensive geological maps with detailed information
- 💡 Innovative integration of peer-reviewed references and literature
- 🧭 Built-in Brunton compass and clinometer tools
- 📱 User-friendly interface and intuitive navigation
- 🌍 Global coverage with paleomaps and stratigraphic data

**What reviewers complain about**

- 🐛 Black map display issues in offline and online modes
- 📍 GPS tracking and real-time position updates failing
- 🔌 Offline functionality severely limited or broken
- 🔐 Persistent login requirement without password saving
- ⚠️ Error dialogs that won't dismiss

**Reported bugs**

- Black map display in airplane mode and online
- Persistent error dialogs that cannot be dismissed
- GPS not tracking in real-time
- Offline check-ins not syncing properly
- Sign-up page jumps between fields and login page

**Requested features**

- Follow/friend mechanic to track other users' check-ins
- Rock identification tool from photo uploads
- Offline map download with customizable zoom levels
- Stereonet tool for structural geology
- Groundwater/aquifer information section


### Rock ID

[App page](https://appshunter.io/ios/app/rock-id-stone-identifier/id6469999508)

Instantly identify rocks, minerals, and gems by snapping a photo. Explore detailed profiles, manage your personal collections, and keep a log of all your discoveries. Become a geology expert with this comprehensive guide.

**Highlights:** Instant AI-powered stone identification, Vast catalog of rock profiles, Personal rock and mineral collections, Detailed history of identifications, Learn rock composition and origin, Distinguish real gems from fakes

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rock ID PRO | $4.99 | per 7 days |
| Rock ID PRO | $4.99 | per 7 days |
| Weekly access (3 days trial) | $5.99 | per 7 days |
| Weekly access | $5.99 | per 7 days |
| Weekly access (3 days trial) | $6.99 | per 7 days |
| Weekly access | $6.99 | per 7 days |
| Rock ID PRO | $6.99 | per 7 days |
| Yearly premium subscription | $19.99 | per year |
| Yearly premium subscription | $39.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Instant identification
- 💡 Extensive stone library
- 🎓 Helpful for education

**What reviewers complain about**

- 🐛 Inconsistent identification accuracy
- 💰 Paywall after limited free scans
- 🤔 Questionable reliability for valuable stones
- 📷 Camera quality issues for small gems

**Reported bugs**

- Incorrect identification of common stones
- Failure to recognize obvious stone types
- Inability to scan certain stones

**Requested features**

- More detailed stone information
- Improved identification accuracy
- Ability to manually correct misidentifications
- Option to disable paywall for limited use


## Frequently asked questions

### Is Rockd free?

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

### Is Rock ID free?

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

### Which has better reviews, Rockd or Rock ID?

Rock ID is rated higher. Rockd averages 4.4 out of 5 from 187 ratings, while Rock ID averages 4.4 from 3.2K ratings.

### Do Rockd or Rock ID have ads?

Neither Rockd nor Rock ID shows ads.

### Which is updated more often, Rockd or Rock ID?

Rockd ships an update every 3 months, and Rock ID monthly. Most recently, Rockd was updated on November 2, 2026 and Rock ID on November 3, 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.*