PDF Secure vs Unlock my PDF
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!
Unlock my PDF
Secure your documents by adding passwords or removing existing ones. This app offers over 20 tools to edit, merge, compress, and sign PDFs directly on your device, ensuring privacy and convenience.
- Unlock PDFs with known passwords
- Protect PDFs with AES encryption
- Merge, split, and extract PDF pages
- Compress PDFs for email
- Sign and fill PDF forms
- Scan documents to PDF
- Convert PDF to images or text
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Unlock your PDFs with the password you know, protect them with a new one, and get 20+ PDF tools to merge, compress, sign and scan. Everything runs on your iPhone or iPad: no uploads, no account. UNLOCK AND PROTECT • Unlock: enter the password you know and save a copy without it • Protect: add a password with AES encryption before you share a file • Save your passwords with Face ID and try all saved passwords in one tap (Premium) • Unlock or protect several PDFs at once (Premium) 20+ PDF TOOLS • Merge PDFs, split them, extract pages • Organize pages: reorder, rotate, delete; crop margins • Compress PDFs for email and uploads, even under an exact size (Premium) • Photos to PDF; scan paper documents to PDF • PDF to images (JPG or PNG) and PDF to text • Sign with your finger, fill in forms, add text or images • Watermark, page numbers, redact, permissions, remove metadata, flatten and OCR (Premium) • Open a PDF and apply several tools one after another to the same file (Premium) OPEN YOUR PDF FROM ANYWHERE • Files: iCloud Drive, Dropbox, OneDrive and other apps connected to Files • A document you scan with the camera, your Photos, or the Library (Premium) • From Mail or another app: tap Share, then Unlock my PDF PRIVATE BY DESIGN Your PDFs are processed on your device with Apple technologies. Nothing is uploaded, there's no account, and results never get a watermark. ONLY PASSWORDS YOU KNOW To unlock a PDF you need to know its password: the app removes it only when you type it or pick one you saved yourself. It is not a password recovery tool, and PDFs whose password you don't know stay closed. FREE AND PREMIUM • Free: 3 unlocks and 3 protections every day, plus one base tool a day after a short video • Premium: unlimited unlocks, protections and tools, the Library, saved passwords, Shortcuts actions, no ads • The yearly plan starts with a 3-day free trial for new subscribers. Manage or cancel anytime in your App Store settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://unlockmypdf.app/privacy/
Screenshots
Verdict
The clearest difference is in-app purchases: PDF Secure at none against Unlock my PDF's 3. PDF Secure also leads on ads (none vs shown) and ratings volume (383 vs 1). Unlock my PDF's advantage is update cadence (every 5 days vs every 9 months). On price, rating 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. Unlock my PDF sells 3 in-app purchases, starting at $1.99 per 7 days. PDF Secure asks for nothing beyond the download.
Unlock my PDF holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: PDF Secure has 383 ratings behind it against 1, so its average is the more settled of the two.
PDF Secure ships an update every 9 months, Unlock my PDF every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | PDF Secure | Unlock my PDF |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (383 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 98.8% of reviews | — |
| Number of ratings | 383 — better | 1 |
| Update frequency | Every 9 months | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 1 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | iSolid apps | Giulio Palumbo Schiavone |
Customer experience
PDF Secure
Unlock my PDF
In-app purchases
PDF Secure
No in-app purchases
Unlock my PDF
- Weekly Premium$1.997 Days
- Monthly Premium$6.991 Month
- Yearly Premium3 Days trial$29.991 Year
Questions
Is PDF Secure free?
Is Unlock my PDF free?
Which has better reviews, PDF Secure or Unlock my PDF?
Do PDF Secure or Unlock my PDF have ads?
Which is updated more often, PDF Secure or Unlock my PDF?
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