# VoidUp vs PDF Reader

The clearest difference is review sentiment: VoidUp at 100% against PDF Reader's 0%. VoidUp also leads on ads (none vs shown) and ratings volume (135 vs 2). PDF Reader's advantage is rating (5.0 vs 4.5) and monetization model (ad-supported vs free with in-app purchases). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. VoidUp sells 3 in-app purchases, starting at $9.99 per 7 days and PDF Reader sells 3 in-app purchases, starting at $14.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF Reader holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: VoidUp has 135 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 100% of VoidUp's written reviews are positive against 0% of PDF Reader's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | VoidUp | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (135 ratings)](https://appshunter.io/ios/app/voidup-clean-phone-storage/id6749049822/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pdf-reader-edit-and-sign/id6761097664/reviews)** |
| Number of ratings | **135** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 27 MB | 89 MB |
| Requires iOS | **16** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Petro Rybalchenko](https://appshunter.io/developer/1810469252) | [Quynh Trang Pham Doan](https://appshunter.io/developer/1880613796) |

## What reviewers say

### VoidUp

[App page](https://appshunter.io/ios/app/voidup-clean-phone-storage/id6749049822)

This utility app uses on-device AI to quickly identify and help you remove duplicate, blurry, or large photos and videos. It intelligently scans your gallery offline, allowing you to preview and delete clutter with a single tap to free up storage space.

**Highlights:** AI duplicate photo detection, Similar photo grouping, Blurry and overexposed shot identification, Large video detection, Screenshot cleanup, One-tap cleanup, Offline AI scanning

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Cleaning | $9.99 | per 7 days |
| Yearly Subscription | $24.99 | per year |
| Lifetime | $49.99 | one-time |


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-edit-and-sign/id6761097664)

Easily manage your PDF files on your phone with tools for reading, editing, signing, and converting documents. Import files, use the camera, and access recent documents quickly. Convert various file types to PDF and perform essential PDF management tasks like merging and splitting.

**Highlights:** Sign documents, Add text to PDFs, Highlight and underline content, Convert Docs/Excel/Img to PDF, Merge and split PDFs, Compress and extract PDFs

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $14.99 | per 7 days |
| Yearly Premium Sale | $49.99 | per year |
| Yearly Premium | $99.99 | per year |


## Frequently asked questions

### Is VoidUp free?

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

### Is PDF Reader free?

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

### Which has better reviews, VoidUp or PDF Reader?

PDF Reader is rated higher. VoidUp averages 4.5 out of 5 from 135 ratings, while PDF Reader averages 5.0 from 2 ratings.

### Do VoidUp or PDF Reader have ads?

PDF Reader shows ads; VoidUp does not.

### Which is updated more often, VoidUp or PDF Reader?

VoidUp ships an update every 2 weeks, and PDF Reader every 2 weeks. Most recently, VoidUp was updated on October 28, 2026 and PDF Reader on October 29, 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.*