# QuarkPDF vs DecodeHub

The clearest difference is ads: QuarkPDF at none against DecodeHub's shown. QuarkPDF also leads on iOS requirement (13.0 vs 15). On price, update cadence, in-app purchases and device support there is nothing between them.

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

QuarkPDF ships an update every 4 months, DecodeHub every 3 months. The most recent releases landed on September 8, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | QuarkPDF | DecodeHub |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 39 MB | 11 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beya Network Technology Limited](https://appshunter.io/developer/1702838438) | [明 李](https://appshunter.io/developer/1678477636) |

## What reviewers say

### QuarkPDF

[App page](https://appshunter.io/ios/app/quarkpdf/id6742776498)

**Features:** macOS Compatibility

**In-app purchases:** none


### DecodeHub

[App page](https://appshunter.io/ios/app/decodehub/id6745171142)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QuarkPDF free?

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

### Is DecodeHub free?

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

### Do QuarkPDF or DecodeHub have ads?

DecodeHub shows ads; QuarkPDF does not.

### Which is updated more often, QuarkPDF or DecodeHub?

QuarkPDF ships an update every 4 months, and DecodeHub every 3 months. Most recently, QuarkPDF was updated on September 8, 2026 and DecodeHub on September 12, 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.*