This application allows users to view PDFs that have been encrypted using FileOpen technology on their Apple devices. It provides a straightforward way to access secure documents on iPhones and iPads.


250+ iOS apps curated and reviewed
The best fileopen pdf viewer apps on iPhone average 3.7★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 1.0★ (1) | No | No | May 2026 | |
| 2 | Free | 4.7★ (644K) | No | Yes | Sep 2026 | |
| 3 | Free | 4.7★ (57) | Yes | No | Aug 2026 | |
| 4 | Free | — | No | No | May 2026 | |
| 5 | Free | 4.6★ (9) | No | Yes | Aug 2026 | |
| 6 | Free | — | Yes | Yes | May 2026 | |
| 7 | Free | 4.3★ (181) | No | Yes | Sep 2026 | |
| 8 | Free | 4.6★ (5) | Yes | Yes | Aug 2026 |


This application allows users to view PDFs that have been encrypted using FileOpen technology on their Apple devices. It provides a straightforward way to access secure documents on iPhones and iPads.






This app is a powerful PDF tool for viewing, editing, annotating, and signing documents. It offers AI-powered features for summarizing and interacting with PDFs, along with robust conversion and security options. Collaborate on files and access your documents from anywhere.





This app provides a privacy-focused way to view, organize, and manage PDF files on your device. It offers tools for merging, splitting, securing documents, and converting images to PDF, all processed locally for enhanced data safety.




Easily manage and secure your PDF documents. Convert images, text, and other files to PDF, set passwords for sensitive data, and organize pages. Merge files, export, and share documents with a convenient history of all conversions.




Open and manage all your document files, including PDF, Word, Excel, and PowerPoint, directly on your phone. This all-in-one app allows quick viewing and sharing of files without needing a computer.


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Convert various document types to high-quality PDFs quickly and reliably on your iPhone. Supports multiple file sources and batch conversions, with offline functionality for enhanced privacy and security. Share your converted files easily via email or cloud services.

