# Document Scanner & PDF vs Earthquake Risk Calculator

The clearest difference is in-app purchases: Earthquake Risk Calculator at none against Document Scanner & PDF's 2. Earthquake Risk Calculator also leads on update cadence (every 2 days vs every 6 weeks). Document Scanner & PDF's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Document Scanner & PDF sells 2 in-app purchases, starting at $0.99 per 7 days. Earthquake Risk Calculator asks for nothing beyond the download.

Document Scanner & PDF ships an update every 6 weeks, Earthquake Risk Calculator every 2 days. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Document Scanner & PDF | Earthquake Risk Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Size | 2 MB | 8 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Ho Van Duoc](https://appshunter.io/developer/1435504316) | [TAHA OGUL](https://appshunter.io/developer/1885106141) |

## What reviewers say

### Document Scanner & PDF

[App page](https://appshunter.io/ios/app/document-scanner-and-pdf/id6791203588)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Doc Scan ProX | $0.99 | per 7 days |
| Doc Scan ProX | $2.99 | per month |


### Earthquake Risk Calculator

[App page](https://appshunter.io/ios/app/earthquake-risk-calculator/id6793368643)

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

**In-app purchases:** none


## Frequently asked questions

### Is Document Scanner & PDF free?

Document Scanner & PDF is free to download, with in-app purchases available.

### Is Earthquake Risk Calculator free?

Earthquake Risk Calculator is free to download, with no in-app purchases.

### Do Document Scanner & PDF or Earthquake Risk Calculator have ads?

Earthquake Risk Calculator shows ads; Document Scanner & PDF does not.

### Which is updated more often, Document Scanner & PDF or Earthquake Risk Calculator?

Document Scanner & PDF ships an update every 6 weeks, and Earthquake Risk Calculator every 2 days. Most recently, Document Scanner & PDF was updated on November 10, 2026 and Earthquake Risk Calculator on November 5, 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.*