PDF Reader Pro vs PDF Vault
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Reader Pro
Experience PDFs in an extraordinary 3D view with this pro PDF reader. It offers a unique 3D book-like reading experience with light and dark modes, and supports both portrait and landscape orientations. Easily share your documents with other applications.
- 3D PDF reading experience
- Light and Dark Mode support
- Portrait and Landscape orientation
- Open Source
- Share PDFs to other apps
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Name says 3D it is a pro PDF viewer in many ways and give you extra ordinary 3D experience. Compared to other PDF viewers, PDF Viewer 3D gives great user experience and with dark and light Mode Key features : - Read Pdf Like 3D book. - Give you 3D experience. - Open Source. - Portrait and Landscape both mode supported. - Support Light-Dark Mode. - Share Pdf into Other apps like WhatsApp, Facebook and many more.
PDF Vault
This ultra-lightweight application offers a comprehensive suite of PDF tools, including text-to-speech functionality, digital signing, document scanning, organization, and instant translation. It's designed for efficiency and ease of use, saving device space while enhancing productivity for work, study, or personal tasks.
- Text-to-speech for PDFs
- Digital document signing
- Scan paper documents to PDF
- Organize and manage PDF files
- Instant document translation
- Ultra-lightweight and fast
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Your private PDF workspace, built for people who take their documents seriously. Ask your PDFs questions, understand complex documents, translate, scan, sign, listen, and manage your files in one lightweight app. PDF Vault combines powerful PDF tools with a privacy-first approach: your documents stay on your device. ASK YOUR PDF ANYTHING Have a long report, contract, research paper, manual, or other document? Just ask. Ask PDF lets you ask questions about the content of your document and get answers based on the information inside it. Find important details, understand complex sections, summarize information, and explore your documents without searching through page after page. Your documents stay private and are processed on your device. PRIVATE BY DESIGN Your documents are personal. PDF Vault is designed with privacy at its core. Your PDF data never leaves your device. No document uploads are required for the core PDF experience. Your files remain under your control while you work with them. ALL THE PDF TOOLS YOU NEED Listen to PDFs Turn your documents into spoken audio with built-in text-to-speech. Listen while working, commuting, studying, or simply when you prefer to hear rather than read. Translate PDFs Translate documents and understand content in other languages without leaving your PDF workspace. Scan documents Turn paper documents into digital PDFs using your device camera. Built-in OCR helps make scanned documents searchable and usable. Sign PDFs Sign documents quickly and conveniently. Add your signature and complete documents without printing them. Read and organize Open, read, manage, and organize your PDF files in a clean, focused workspace designed to stay out of your way. LIGHTWEIGHT AND FOCUSED PDF Vault is built to give you the tools you actually need without turning your device into a document-management maze. Whether you are working with contracts, invoices, academic papers, reports, forms, manuals, or personal documents, PDF Vault keeps everything you need close at hand. FOR WORK, STUDY, AND EVERYDAY DOCUMENTS Use PDF Vault at work to understand reports and contracts. Use it at university to explore research papers and study materials. Use it at home to manage forms, manuals, receipts, and other important documents. ONE PRIVATE WORKSPACE FOR YOUR PDFs Read. Ask. Translate. Scan. Sign. Listen. Organize. PDF Vault brings essential PDF tools together while keeping privacy at the center of the experience. PDF Vault Unlimited gives you unlimited access to all PDF Vault features while directly supporting our mission to provide the best privacy-first PDF tool where your data never leaves your device. Terms of Service: https://macmonsters.com/pdf-reader-terms-of-service.html
Screenshots
Verdict
The clearest difference is review sentiment: PDF Reader Pro at 100% against PDF Vault's 50%. PDF Reader Pro also leads on in-app purchases (none vs 2) and iOS requirement (13.0 vs 18.1). PDF Vault's advantage is ads (none vs shown) and update cadence (fortnightly vs every 4 months). On price 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. PDF Vault sells 2 in-app purchases, starting at $4.99 per month. PDF Reader Pro asks for nothing beyond the download.
PDF Reader Pro ships an update every 4 months, PDF Vault fortnightly. The most recent releases landed on September 28, 2026 and October 12, 2026 respectively.
| Parameter | PDF Reader Pro | PDF Vault |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 8 — better | — |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 8 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Nirav Parmar | Dmytro Skorokhod |
Customer experience
PDF Reader Pro
PDF Vault
In-app purchases
PDF Reader Pro
No in-app purchases
PDF Vault
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