# Geology Toolkit: Field Guide — Rock, mineral & crystal ID

> AI-powered rock identification and geological education tool for students and enthusiasts. (iPhone/iPad app by Laurence Wayne.)

- Source: https://appshunter.io/ios/app/geology-toolkit-field-guide/id6745966254 (this page in markdown: same URL + `.md`)
- Developer: [Laurence Wayne](https://appshunter.io/developer/1739552943)
- Category: Education, Weather
- Price: Free with in-app purchases
- Rating: 4.60/5 from 25 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 100 MB
- Languages: American English
- Released: 2025-05-22
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/geology-toolkit-field-guide/id6745966254/reviews.md

## What is Geology Toolkit?

Geology Toolkit uses AI to identify rocks and minerals, explain formations and create labelled pencil sketches all from a photo, then tells you the story behind them - how they formed, what they're made of and what else you might find nearby. Also includes geological information like Mohs hardness, luster, chemical formula and much more.

Whether you're a curious walker who picked up something interesting, a rockhound building your collection, a student preparing for fieldwork, or a professional working in the field, Geology Toolkit gives you a considered field guide in your pocket.

What you can do
• Identify rocks, minerals, crystals, gems, and pebbles from photos
• Read the full formation story - how each specimen formed, over what timescale, in what conditions
• Discover companion minerals commonly found alongside your finds
• Save specimens to your personal field guide with sketches, notes, and location
• Get confidence scores and alternative identifications for tricky specimens

Built for serious curiosity
• Rockhounds and collectors building a field guide of finds
• Geology and earth science students studying mineralogy, petrology, and classification
• Field professionals needing quick, reliable identification and reference
• Educators and parents exploring geology with curious learners
• Anyone who's ever picked up a stone and wondered what it was

Why Geology Toolkit
Most rock identifier apps stop at a name. Geology Toolkit goes further - explaining why a rock is what it is, how it formed, and what to look for in the field. Every identification adds to your personal field guide, building a reference you'll return to.

Subscribe for unlimited identifications, full formation histories, companion mineral data, and an exportable field record.

From photo to real geological understanding - one specimen at a time.

Terms of Use: https://www.geologytoolkit.com/terms
Privacy Policy: https://www.geologytoolkit.com/privacy-policy

## Key features

- AI-powered rock identification
- Detailed mineral composition insights
- Student-friendly explanations
- Sketch and visual tools for notes
- Focus on geological understanding

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Geology AI Yearly Subscription | $24.99 | per year |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/geology-toolkit-field-guide/id6745966254/reviews.md

### 2/5 — Missed opportunity

*2026-01-24*

I downloaded this app hoping that it would offer a more data driven approach to rock identification, instead this just seems like a worse implementation of other AI apps. What I really want is to be able to feed the app information like hardness, SG and acid test results so that the AI can use all of that data along with the image to give me the best possible result. If this was implemented I do believe it could quickly become the best identification app for informed hobbyists.

**Developer response:** Thank you so much for the thoughtful feedback - this is a really valuable suggestion.

You’re absolutely right that incorporating additional field data such as hardness, specific gravity, and acid reaction would allow for a more constraint-driven identification process. Combining those inputs with image analysis would move the app closer to a structured diagnostic workflow rather than relying primarily on visual interpretation.

At the moment, Geology Toolkit is focused on making rock identification and learning accessible for students and enthusiasts using image-based analysis. However, expanding toward more data-informed identification for advanced users is something I’m very interested in exploring as the app evolves.

I appreciate you taking the time to share such detailed input - it helps shape where the app can go next!

### 1/5 — Long loading screen

*2025-12-05*

App takes a long time to analyze rock/ mineral

**Developer response:** Thanks for letting us know, and sorry about the slow analysis. We know waiting can be frustrating. Analysis time can vary based on photo details and connection speed, and we’re continuously optimizing performance. Your feedback helps us improve, and we hope you’ll give the app another try.

## Frequently asked questions about Geology Toolkit

### How does Geology Toolkit identify rocks?

Geology Toolkit uses AI to analyze photos of hand specimens, providing clear, structured insights into rock type and mineral composition. It goes beyond simple labels to explain the 'why' behind classifications.

### Is Geology Toolkit suitable for beginners?

Yes, Geology Toolkit is designed with clear, student-friendly explanations that support coursework and independent learning without requiring prior expertise. It focuses on building understanding over time.

### What kind of learning does Geology Toolkit offer?

The app focuses on building real geological understanding by explaining mineral composition, texture, and formation. It's designed for repeated use during study and exploration, serving as a reliable reference.

### Can I use Geology Toolkit for fieldwork?

Yes, the app is built to support learning and preparation for fieldwork. Its identification features and clear explanations can help users gain confidence in identifying specimens in the field.

### What are the subscription options for Geology Toolkit?

Geology Toolkit offers a Weekly Subscription at $2.99/P7D and a Geology AI Yearly Subscription at $24.99/P1Y, which includes a 7-day free trial.

### How often is Geology Toolkit updated?

The latest version is 1.6.1, and the app was last updated on 2026-02-25. This indicates a relatively active development cycle for new features and improvements.

### What devices does Geology Toolkit support?

Geology Toolkit is available on iPhone and iPad devices, making it accessible for students and enthusiasts on Apple's mobile platforms.

### What is the age rating for Geology Toolkit?

Geology Toolkit has an age rating of 4+, making it suitable for a wide range of users interested in learning about geology, from younger students to adults.

## Version history (last 5 releases)

### 2.2.0 — 2026-08-25

NEW: What's Beneath

Ever wondered what exactly is under your feet? Now you can find out. The new "What's beneath" section in Discover shows the rock record for your area – every layer, stacked on a timeline spanning millions (sometimes billions) of years.

• See the surface geology where you're standing, with just your approximate location – or look up any place by name
• Scroll a time-scaled column of the rock layers recorded for your region, from yesterday's sediments down to ancient basement rock
• Spot the gaps – missing chapters of deep time, marked right where the record skips. Some regions are missing hundreds of millions of years
• Just identified a rock? Tap "See the rock record beneath this find" on the result to explore the geology where you found it
• Browse hand-checked famous columns – start with the Grand Canyon – no location needed, works offline

Geologic data © Macrostrat (CC BY 4.0). Coverage is deepest across North America and growing elsewhere.

Also in this update: stability improvements and crash reporting, so problems get found and fixed faster.

### 2.1.0 — 2026-08-10

Share your finds

Tap Share beneath any specimen to send your identification as a field-guide card - photo, name and key properties in a single image. No app needed at the other end.

### 2.0.3 — 2026-07-16

Minor bug fix

### 2.0.2 — 2026-07-01

Big upgrade to the sketching functionality along with smarter reminder notifications

### 2.0.1 — 2026-05-11

Minor bug fixes and request for feedback on menu page

## Apps similar to Geology Toolkit

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Rock Identifier - Rockr](https://appshunter.io/ios/app/rock-identifier-rockr/id6747277189) | 4.3 (25) | Free | Education |
| [Geology Dictionary - Offline](https://appshunter.io/ios/app/geology-dictionary-offline/id1488197434) | 3.4 (5) | Free | Education |
| [Rock Identifier: Mineral Guide](https://appshunter.io/ios/app/rock-identifier-mineral-guide/id6753039481) | 4.9 (11) | Free | Education |
| [Geology Quiz](https://appshunter.io/ios/app/geology-quiz/id1170667602) | 4.4 (38) | Free | Education |
| [DeepTime for Geology](https://appshunter.io/ios/app/deeptime-for-geology/id1500200416) | 5.0 (7) | Free | Education |
| [GMDE Lite](https://appshunter.io/ios/app/gmde-lite/id1557325241) | 5.0 (2) | Free | Education |

## More apps by Laurence Wayne

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- [Blockchain Currency Converter](https://appshunter.io/ios/app/blockchain-currency-converter/id6744872207)

All apps by Laurence Wayne: https://appshunter.io/developer/1739552943

## Related topics

[geology toolkit](https://appshunter.io/ios/topics/geology-toolkit) · [geological field notes](https://appshunter.io/ios/topics/geological-field-notes) · [geology](https://appshunter.io/ios/topics/geology) · [rocks geology](https://appshunter.io/ios/topics/rocks-geology) · [geology quizzes](https://appshunter.io/ios/topics/geology-quizzes)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*