# QuikPDF Pro vs SumDoc

The clearest difference is update cadence: SumDoc at every 6 days against QuikPDF Pro's every 7 months. On price, ads, 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.

QuikPDF Pro ships an update every 7 months, SumDoc every 6 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | QuikPDF Pro | SumDoc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 days** |
| Size | 5 MB | 68 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Souriya Vongchanh](https://appshunter.io/developer/1870362486) | [HEALTH INFORMATIC SECURITY SYSTEM, S.L.](https://appshunter.io/developer/1848342899) |

## What reviewers say

### QuikPDF Pro

[App page](https://appshunter.io/ios/app/quikpdf-pro/id6760364514)

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

**In-app purchases:** none


### SumDoc

[App page](https://appshunter.io/ios/app/sumdoc-docx-document-editor/id6807049845)

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

**In-app purchases:** none


## Frequently asked questions

### Is QuikPDF Pro free?

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

### Is SumDoc free?

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

### Do QuikPDF Pro or SumDoc have ads?

Neither QuikPDF Pro nor SumDoc shows ads.

### Which is updated more often, QuikPDF Pro or SumDoc?

QuikPDF Pro ships an update every 7 months, and SumDoc every 6 days. Most recently, QuikPDF Pro was updated on October 24, 2026 and SumDoc on October 7, 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.*