# PDF Secure vs PDF Pass

The clearest difference is ads: PDF Secure at none against PDF Pass's shown. PDF Secure also leads on iOS requirement (13.0 vs 16.4). PDF Pass's advantage is update cadence (every 4 days vs every 9 months). On price, 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.

PDF Secure ships an update every 9 months, PDF Pass every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PDF Secure | PDF Pass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (383 ratings)](https://appshunter.io/ios/app/pdf-secure/id1515466852/reviews)** | — |
| Number of ratings | **383** | — |
| Positive reviews | 98.8% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 1 MB | 41 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iSolid apps](https://appshunter.io/developer/1215383083) | [Abhishek Diwakar](https://appshunter.io/developer/1859662850) |

## What reviewers say

### PDF Secure

[App page](https://appshunter.io/ios/app/pdf-secure/id1515466852)

Secure your PDF documents by adding password protection, ensuring they cannot be opened without authorization. You can also easily remove existing password protection from your files. This app offers a straightforward process for safeguarding your sensitive information.

**Highlights:** Password protect PDF documents, Remove PDF password protection, Cross-platform compatibility, Export to various locations, Dark mode support

**In-app purchases:** none


### PDF Pass

[App page](https://appshunter.io/ios/app/pdf-pass-unlock-pdfs/id6803412248)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Secure free?

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

### Is PDF Pass free?

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

### Do PDF Secure or PDF Pass have ads?

PDF Pass shows ads; PDF Secure does not.

### Which is updated more often, PDF Secure or PDF Pass?

PDF Secure ships an update every 9 months, and PDF Pass every 4 days. Most recently, PDF Secure was updated on November 3, 2026 and PDF Pass on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*