Comparison

Right PDF Reader vs PDF Book Reader

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 Book Reader

Easily read, manage, and annotate PDF books and documents. This app offers a smooth reading experience, powerful annotation tools, and seamless cloud integration. Organize, search, and share your PDFs with ease.

Highlights
  • Natural PDF reading and navigation
  • PDF bookmarking and annotation
  • Text search and OCR extraction
  • PDF merging and page rearrangement
  • Cloud storage integration (Google Drive, Dropbox, iCloud)
  • File import and export via cloud and Files app
  • PDF sharing and printing
Features
Read full description

PDF Book Reader app helps you easily and naturally read PDF books and documents. It works as smooth as reading web pages in web browsers. PDF Book Reader is the best app to read, manage and annotate PDF Books and it works beautifully on iOS 14. The most powerful PDF Book reader, carefully designed and optimized specially for the iPhone & iPad. [ KEY FEATURES ] • Naturally read and navigate PDF books • Bookmark PDF e-Books • Annotate PDF e-Books • Search texts in entire PDF files • Extract texts by using OCR • Merge PDF files • Rearrange PDF pages by drag & drop • Connect with Google Drive, Dropbox, iCloud, Photos • Import files from Files, Photos, Google Drive, Dropbox • Automatically and securely save PDF files in Files app • Share PDF files via email, text (sms), cloud solutions • Print PDF files [ Upgrade to subscription version ] Upgrading to subscription version requires auto-renewal subscription. Payment will be charged to your Apple ID account at the confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Links to Your Privacy Policy and Terms of Use: http://www.btoj.com.au/privacy.html http://www.btoj.com.au/terms.html Please feel free to contact us for anything.

Screenshots

Right PDF Reader4 screens
PDF Book Reader4 screens

Verdict

The call

The clearest difference is rating: Right PDF Reader at 4.6 against PDF Book Reader's 3.9. Right PDF Reader also leads on in-app purchases (none vs 2) and ads (none vs shown). PDF Book Reader's advantage is update cadence (every 5 days vs every 11 months) and ratings volume (31 vs 5). On price, device support and iOS requirement 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 Book Reader sells 2 in-app purchases, starting at $3.99 per month. Right PDF Reader asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Right PDF Reader holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: PDF Book Reader has 31 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 92% of Right PDF Reader's written reviews are positive against 61% of PDF Book Reader's.

UpkeepUpdate frequency

Right PDF Reader ships an update every 11 months, PDF Book Reader every 5 days. The most recent releases landed on September 27, 2026 and September 30, 2026 respectively.

Scorecard7 real differences · 3 level
Right PDF Reader versus PDF Book Reader: the parameters behind the verdict, then further details
ParameterRight PDF ReaderPDF Book Reader
PriceFreeFree
Rating4.6 (5 ratings) — better3.9 (31 ratings)
Positive reviews92.3% of reviews — better61.1% of reviews
Number of ratings531 — better
Update frequencyEvery 11 monthsEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size79 MB46 MB
Age rating4+4+
DeveloperZEON CorpB TO J PTY LTD

Customer experience

Right PDF Reader

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

PDF Book Reader

All ratings31 ratings
Positive74.2%
Neutral3.2%
Negative22.6%
Written reviews18 reviews
Positive61.1%
Neutral0.0%
Negative38.9%

In-app purchases

None

Right PDF Reader

No in-app purchases

2 purchases

PDF Book Reader

Subscriptions2
  • 1 Month Subscription$3.991 Month
  • 1 Year Subscription$28.991 Year

Questions

Is Right PDF Reader free?
Right PDF Reader is free to download, with no in-app purchases.
Is PDF Book Reader free?
PDF Book Reader is free to download, with in-app purchases available.
Which has better reviews, Right PDF Reader or PDF Book Reader?
Right PDF Reader is rated higher. Right PDF Reader averages 4.6 out of 5 from 5 ratings, while PDF Book Reader averages 3.9 from 31 ratings.
Do Right PDF Reader or PDF Book Reader have ads?
PDF Book Reader shows ads; Right PDF Reader does not.
Which is updated more often, Right PDF Reader or PDF Book Reader?
Right PDF Reader ships an update every 11 months, and PDF Book Reader every 5 days. Most recently, Right PDF Reader was updated on September 27, 2026 and PDF Book Reader on September 30, 2026.

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