# docM vs Geology Toolkit

The clearest difference is in-app purchases: docM at none against Geology Toolkit's 2. Geology Toolkit's advantage is update cadence (fortnightly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Geology Toolkit sells 2 in-app purchases, starting at $2.99 per 7 days. docM asks for nothing beyond the download.

docM ships an update every 3 months, Geology Toolkit fortnightly. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | docM | Geology Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (25 ratings)](https://appshunter.io/ios/app/geology-toolkit-field-guide/id6745966254/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 51 MB | 100 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Konzept-iX Software GmbH](https://appshunter.io/developer/979575425) | [Laurence Wayne](https://appshunter.io/developer/1739552943) |

## What reviewers say

### docM

[App page](https://appshunter.io/ios/app/docm/id1533248653)

**In-app purchases:** none


### Geology Toolkit

[App page](https://appshunter.io/ios/app/geology-toolkit-field-guide/id6745966254)

Identify rocks with AI and gain a deep understanding of their composition and formation. This app is designed for students and enthusiasts to learn geology beyond simple identification, offering clear explanations and visual tools for study and fieldwork.

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

**In-app purchases (2)**

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


## Frequently asked questions

### Is docM free?

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

### Is Geology Toolkit free?

Geology Toolkit is free to download, with in-app purchases available.

### Do docM or Geology Toolkit have ads?

Neither docM nor Geology Toolkit shows ads.

### Which is updated more often, docM or Geology Toolkit?

docM ships an update every 3 months, and Geology Toolkit fortnightly. Most recently, docM was updated on September 8, 2026 and Geology Toolkit on September 9, 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.*