# Geology Dictionary vs Mining Dictionary Pro

The clearest difference is in-app purchases: Mining Dictionary Pro at none against Geology Dictionary's 4. Mining Dictionary Pro also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Geology Dictionary sells 4 in-app purchases, starting at $1.99 per 7 days. Mining Dictionary Pro asks for nothing beyond the download.

Geology Dictionary ships an update every 8 months, Mining Dictionary Pro every 7 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Geology Dictionary | Mining Dictionary Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (6 ratings)](https://appshunter.io/ios/app/geology-dictionary-offline/id1488197434/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 7 months** |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 12 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Puju Dekivadiya](https://appshunter.io/developer/1289574712) | [Donik Ariyanto](https://appshunter.io/developer/1325008963) |

## What reviewers say

### Geology Dictionary

[App page](https://appshunter.io/ios/app/geology-dictionary-offline/id1488197434)

Access a vast offline dictionary of geological terms with definitions, synonyms, and audio pronunciations. Learn about Earth sciences, save favorite words, and test your knowledge with quizzes. Share terms easily with friends.

**Highlights:** Offline access to 50,000+ geological terms, Definitions, synonyms, and example sentences, Audio pronunciations for over 5,000 terms, Save favorite words and access history, Interactive quizzes to test knowledge, Speech-to-text and text-to-speech functionality, Share terms and meanings with others

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Plan | $1.99 | per 7 days |
| Monthly Pro Plan | $4.99 | per month |
| Yearly Pro Plan | $29.99 | per year |
| Lifetime Access | $39.99 | one-time |


### Mining Dictionary Pro

[App page](https://appshunter.io/ios/app/mining-dictionary-pro/id1495822470)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Geology Dictionary free?

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

### Is Mining Dictionary Pro free?

Mining Dictionary Pro is free to download, with no in-app purchases.

### Do Geology Dictionary or Mining Dictionary Pro have ads?

Geology Dictionary shows ads; Mining Dictionary Pro does not.

### Which is updated more often, Geology Dictionary or Mining Dictionary Pro?

Geology Dictionary ships an update every 8 months, and Mining Dictionary Pro every 7 months. Most recently, Geology Dictionary was updated on November 3, 2026 and Mining Dictionary Pro on November 7, 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.*