PDF Secure vs PDF Pass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Secure
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.
- Password protect PDF documents
- Remove PDF password protection
- Cross-platform compatibility
- Export to various locations
- Dark mode support
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Protect your PDF documents with a password. The PDF won't open without the password. It works on any platform. PDF Secure also allows you to completely remove the password protection of a document. Using PDF Secure is very simple: • Select a PDF document from your files • Choose a password (ideally strong) and do not forget it • Export anywhere (Files app, any cloud drive, E-mail, AirDrop, Messages, ...) → The password will now be requested at any attempt to open the PDF (on all platforms) PDF Secure is compatible with the dark mode. And it's 100% free (no in-app purchases, no ads). NO DATA COLLECTION. Everything happens on device. Your privacy matters. Enjoy!
PDF Pass
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PDF Pass removes a password you already know from a PDF — entirely on your phone. Open a locked PDF from Files, Downloads, email, or another app. Enter the password, preview the pages, then save or share an unlocked copy. Your file and password never leave the device. There are no accounts and nothing to sign up for. How it works • Pick or share a PDF into PDF Pass • Enter the password if the file is locked • Preview pages on device • Tap Save or Share to keep or send the unlocked PDF Privacy-first Unlocking happens offline on your device. We don’t upload your PDFs or passwords. PDF Pass is not a cracking or password-recovery tool — it only works when you already know the password, and it won’t guess or bypass security on files you’re not allowed to change. Ads When you tap Save or Share, a full-screen ad may appear first. Ads help keep the app free. After the ad closes, the save or share flow continues. Notes Unlock can fail for some encryption types or damaged files. Use PDF Pass only with documents you’re authorized to unlock.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | PDF Secure | PDF Pass |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (383 ratings) — better | — |
| Positive reviews | 98.8% of reviews | — |
| Number of ratings | 383 — better | — |
| Update frequency | Every 9 months | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 1 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | iSolid apps | Abhishek Diwakar |
In-app purchases
PDF Secure
No in-app purchases
PDF Pass
No in-app purchases
