# Voltios vs PDF Scanner

The clearest difference is in-app purchases: Voltios at none against PDF Scanner's 3. Voltios also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PDF Scanner sells 3 in-app purchases, starting at $9.99 per 7 days. Voltios asks for nothing beyond the download.

Voltios ships an update every 11 days, PDF Scanner weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Voltios | PDF Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/pdf-scanner-scan-edit-docs/id6797830429/reviews)** |
| Number of ratings | — | **9** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 84 MB | 34 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Joseph Ramos Mendez](https://appshunter.io/developer/1811265988) | [Xiaoyou Interactive](https://appshunter.io/developer/1845756944) |

## What reviewers say

### Voltios

[App page](https://appshunter.io/ios/app/voltios-texas-power-saver/id6745665880)

**In-app purchases:** none


### PDF Scanner

[App page](https://appshunter.io/ios/app/pdf-scanner-scan-edit-docs/id6797830429)

Transform your phone into a powerful scanner with AI-powered OCR, PDF conversion, and e-signature capabilities. Securely manage and edit documents locally, perfect for office work, studying, and daily tasks.

**Highlights:** AI HD Document Scanning, Multi-mode Scanning, Smart Image Enhancement, Flexible PDF Conversion, Offline Multilingual OCR, PDF Signing & Annotation, Secure Local Storage

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $9.99 | per 7 days |
| Yearly | $29.99 | per year |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Voltios free?

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

### Is PDF Scanner free?

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

### Do Voltios or PDF Scanner have ads?

Both Voltios and PDF Scanner show ads.

### Which is updated more often, Voltios or PDF Scanner?

Voltios ships an update every 11 days, and PDF Scanner weekly. Most recently, Voltios was updated on October 28, 2026 and PDF Scanner on October 25, 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.*