# PDFast vs ZapPDF

The clearest difference is price: ZapPDF at Free against PDFast's $3.99. PDFast's advantage is in-app purchases (none vs 2) and update cadence (every 5 weeks vs every 4 months). On ads, device support and iOS requirement there is nothing between them.

ZapPDF is free to download; PDFast costs $3.99 up front. ZapPDF sells 2 in-app purchases, starting at $8.99 per year. PDFast asks for nothing beyond the download.

PDFast ships an update every 5 weeks, ZapPDF every 4 months. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PDFast | ZapPDF |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Size | 9 MB | 13 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Rodzaevskiy](https://appshunter.io/developer/1838906311) | [Yasar Berker Gungor](https://appshunter.io/developer/1809846909) |

## What reviewers say

### PDFast

[App page](https://appshunter.io/ios/app/pdfast-pdf-tools-and-scanner/id6755842402)

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

**In-app purchases:** none


### ZapPDF

[App page](https://appshunter.io/ios/app/zappdf-merge-split-and-edit/id6759740507)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZapPDF Pro Annual | $8.99 | per year |
| Lifetime Pro Unlock | $14.99 | one-time |


## Frequently asked questions

### Is PDFast free?

PDFast costs $3.99, with no in-app purchases.

### Is ZapPDF free?

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

### Do PDFast or ZapPDF have ads?

Neither PDFast nor ZapPDF shows ads.

### Which is updated more often, PDFast or ZapPDF?

PDFast ships an update every 5 weeks, and ZapPDF every 4 months. Most recently, PDFast was updated on October 31, 2026 and ZapPDF on October 28, 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.*