Comparison

Right PDF Reader vs PDF Vault

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Right PDF Reader

This application provides robust PDF viewing, annotation, and management tools. It allows users to organize, share, and sign documents with a user-friendly interface and advanced features.

Highlights
  • Fast PDF viewing
  • Annotation tools (highlight, draw, text)
  • Document organization with folders
  • Cloud storage integration (Dropbox, WebDAV)
  • Handwritten signature creation
  • Form filling
  • Password protection
Features
Read full description

Right PDF Reader goes beyond a free PDF reader app. Created by a team of professionals in the PDF software business since 1993, Right PDF Reader has a simple UI that is easy to navigate and more features than average free readers. PDF Viewing - Fast document open speed - Browse lets you view PDFs in the device or iCloud - Supported thumbnail view - View PDF portfolio, comment, attachment and protected document - Single page view or continuous view available - Fit page width or whole page are also available under single page view - Use Day/Night mode to adjust brightness - After tapping page number, you can enter a number and jump to that page directly. - Quickly add and edit Bookmarks and Marks - Search document Note and Comments - Use highlight, cross-out and underline to annotate PDF with customizable color and opacity - Note lets you to add text comment anywhere in PDF - Use Draw Tools to mark up PDF with color, thickness and opacity of your choice. Move and undo are also supported - Batch remove comments Document Management - Create folder to organize PDFs better - Move or copy multiple documents to a folder - Compress multiple documents or folders, or extract any package quickly - Rename document - Attach one or multiple PDFs to an e-mail - Select and delete multiple documents Online Sharing - Get documents in and out of Dropbox - Add WebDAV servers to upload/download documents easily - Access documents in Gaaiho PDF online or upload documents directly to the app (permissions required), breaking the barrier between computer and your iPhone/iPad Handwritten signature - You can create a handwritten signature by drawing, using an image, or taking a photo - Sign anywhere in document Other Features - Fill a form - Use “open in” to share PDF files with other applications - Auto-memorize the point you quitted reading last time - Protect PDF with an open password - Print document

About

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.

Highlights
  • 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
Features
Read full description

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

Right PDF Reader4 screens
PDF Vault2 screens

Verdict

The call

The clearest difference is review sentiment: Right PDF Reader at 92% against PDF Vault's 50%. Right PDF Reader also leads on in-app purchases (none vs 2) and iOS requirement (14.0 vs 18.1). PDF Vault's advantage is update cadence (fortnightly vs every 11 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PDF Vault sells 2 in-app purchases, starting at $4.99 per month. Right PDF Reader asks for nothing beyond the download.

UpkeepUpdate frequency

Right PDF Reader ships an update every 11 months, PDF Vault fortnightly. The most recent releases landed on September 27, 2026 and September 26, 2026 respectively.

Scorecard5 real differences · 5 level
Right PDF Reader versus PDF Vault: the parameters behind the verdict, then further details
ParameterRight PDF ReaderPDF Vault
PriceFreeFree
Rating4.6 (5 ratings) — better—
Positive reviews92.3% of reviews — better50.0% of reviews
Number of ratings5 — better—
Update frequencyEvery 11 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better18.1
Further details — not scored
Size79 MB4 MB
Age rating4+4+
DeveloperZEON CorpDmytro Skorokhod

Customer experience

Right PDF Reader

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews13 reviews
Positive92.3%
Neutral7.7%
Negative0.0%

PDF Vault

Written reviews6 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

In-app purchases

None

Right PDF Reader

No in-app purchases

2 purchases

PDF Vault

Subscriptions2
  • Mox PDF Tool Unlimited Monthly7 Days trial$4.991 Month
  • Mox PDF Tool Unlimited Annually7 Days trial$19.991 Year

Questions

Is Right PDF Reader free?
Right PDF Reader is free to download, with no in-app purchases.
Is PDF Vault free?
PDF Vault is free to download, with in-app purchases available.
Do Right PDF Reader or PDF Vault have ads?
Neither Right PDF Reader nor PDF Vault shows ads.
Which is updated more often, Right PDF Reader or PDF Vault?
Right PDF Reader ships an update every 11 months, and PDF Vault fortnightly. Most recently, Right PDF Reader was updated on September 27, 2026 and PDF Vault on September 26, 2026.

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