# WiVolt vs PDF ProX

The clearest difference is ads: WiVolt at none against PDF ProX's shown. PDF ProX's advantage is update cadence (weekly vs monthly) and chart position (#167 vs unranked). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

WiVolt ships an update monthly, PDF ProX weekly. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | WiVolt | PDF ProX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (11 ratings)](https://appshunter.io/ios/app/pdf-prox-pdf-reader-and-editor/id6787909790/reviews)** |
| Number of ratings | — | **11** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#167** |
| Size | 35 MB | 118 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [IoT (Shenzhen) Sharing Technology Co., Ltd](https://appshunter.io/developer/1726546490) | [ROOSTERX GLOBAL COMPANY LIMITED](https://appshunter.io/developer/6787909792) |

## What reviewers say

### WiVolt

[App page](https://appshunter.io/ios/app/wivolt/id6743378349)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF ProX

[App page](https://appshunter.io/ios/app/pdf-prox-pdf-reader-and-editor/id6787909790)

**Currently charting:** #167 Top Free · Utilities (US App Store)

Transform your mobile device into a powerful scanner and PDF editor. Quickly scan documents, receipts, and photos, convert them to PDF, and then edit, compress, or secure your files. Organize and share your documents with ease.

**Highlights:** Mobile document scanning, PDF conversion, PDF editing and organization, Password protection, File compression, Edge detection and auto-cropping

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

**In-app purchases:** none


## Frequently asked questions

### Is WiVolt free?

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

### Is PDF ProX free?

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

### Do WiVolt or PDF ProX have ads?

PDF ProX shows ads; WiVolt does not.

### Which is updated more often, WiVolt or PDF ProX?

WiVolt ships an update monthly, and PDF ProX weekly. Most recently, WiVolt was updated on October 6, 2026 and PDF ProX on October 19, 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.*