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Best Free PDF Books Apps

250+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated August 2026

The best free pdf books apps on iPhone average 4.5★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.

Compare top Free PDF Books Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1eBook Search - download bookseBook Search - download booksFree4.5★ (3.5K)YesNoAug 2026
2Amazon Kindle: Reading AppAmazon Kindle: Reading AppFree4.9★ (5.8M)NoNoAug 2026
3PocketBook ReaderPocketBook ReaderFree4.5★ (9.7K)NoYesAug 2026
4Apple BooksApple BooksFree4.4★ (86K)NoNoAug 2026
5PDF Editor ,PDF Book Reader ®PDF Editor ,PDF Book Reader ®Free4.3★ (22K)NoYesAug 2026
6Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.7★ (644K)NoYesAug 2026
7Google Play Books & AudiobooksGoogle Play Books & AudiobooksFree4.4★ (9.6K)NoNoAug 2026
8Bookview PDF ReaderBookview PDF ReaderFree—NoNoMay 2026

Top Picks for Free PDF Books

eBook Search - download books#1

eBook Search - download books by Inkstone Software, Inc.

Paper free book library
Editor's Choice
📚 Books
4.5😊(3.5K ratings)
FreeAds
eBook Search - download books screenshot 1
eBook Search - download books screenshot 2
eBook Search - download books screenshot 3
eBook Search - download books screenshot 4

Access a vast digital library of over 2 million free eBooks across all genres. Instantly download titles directly to your preferred reading device, including Kindle, Nook, and iBooks, without needing a library card. Discover classics, thrillers, and more, all available at your fingertips.

What We Love

  • 💻 Easy to use
  • 📚 Great selection of books
  • 🆓 Many free books available
  • 🔍 Helpful search functionality

Room to Improve

  • 🔍 Difficult to browse and discover books
  • ⚠️ Some books unavailable or require payment
  • 📄 Blank or incomplete book downloads
Amazon Kindle: Reading App#2

Amazon Kindle: Reading App by AMZN Mobile LLC

Read books. Millions of ebooks
Strong Contender
📚 Books
4.9😊(5.8M ratings)
FreeIn-App Purchases
#4in Books
Amazon Kindle: Reading App screenshot 1
Amazon Kindle: Reading App screenshot 2
Amazon Kindle: Reading App screenshot 3
Amazon Kindle: Reading App screenshot 4
Amazon Kindle: Reading App screenshot 5
Amazon Kindle: Reading App screenshot 6

Access a vast library of eBooks, magazines, and comics on your mobile device. Customize your reading experience with adjustable text, brightness, and page-turning options. Look up words, track progress, and sync across devices.

What We Love

  • 📚 Huge library of books
  • 📱 Portable and convenient
  • 🔍 Useful features like dictionary lookup and highlighting
  • 🌙 Adjustable reading settings (font, brightness, etc.)

Room to Improve

  • 🛒 Cannot purchase books directly in the app
  • 🗂️ Difficulty organizing and managing large book libraries
  • 🔍 Inconsistent behavior when highlighting/taking notes
PocketBook Reader#3

PocketBook Reader by Pocketbook International SA

PDF, EPUB, FB2, Audiobooks
Worth Considering
📚 Books
4.5😐(9.7K ratings)
FreeIn-App Purchases
PocketBook Reader screenshot 1
PocketBook Reader screenshot 2
PocketBook Reader screenshot 3
PocketBook Reader screenshot 4
PocketBook Reader screenshot 5
PocketBook Reader screenshot 6

This app is a versatile reader supporting 26 book and audio formats, including EPUB, PDF, and audiobooks. It offers features like PDF reflow, text-to-speech, cloud synchronization, and extensive customization options for a comfortable reading experience.

What We Love

  • 👍 Convenient reading experience
  • 🚀 Smooth scrolling
  • 💡 Customizable settings (font, margin, etc.)
  • 🔒 Supports DRM-protected content

Room to Improve

  • 🐛 Crashes and freezes
  • 🐛 Unreliable cloud sync
  • 🐛 Inconsistent page rendering

More Free PDF Books apps to explore

4
Apple Books
Apple Books
Apple Books
Read, listen, discover.
Free

Discover, read, and listen to millions of books and audiobooks. Browse curated collections, personalized recommendations, and bestsellers. Customize your reading experience with various themes and settings, and set reading goals to build a habit. Share your library with family.

Discover millions of books and audiobooksPersonalized recommendations and curated collectionsCustomizable reading experience (fonts, themes, spacing)
📚 Books
(86K)
free with in-app purchases
5
PDF Editor ,PDF Book Reader ®
PDF Editor ,PDF Book Reader ®
PDF Editor ,PDF Book Reader ®
PDF Scanner -OCR,PDF Converter
Free

This app offers a comprehensive suite of tools for managing PDF documents. It allows users to read, edit, annotate, convert, and scan PDFs with an intuitive interface. Features include form filling, digital signatures, page management, and robust sharing options across Apple devices.

Read and edit PDFsAnnotate and markup documentsFill forms and add digital signatures
🔧 Utilities
(22K)
free with in-app purchases
6
Acrobat Reader: PDF Editor
Acrobat Reader: PDF Editor
Acrobat Reader: PDF Editor
Documents Editor & Converter
Free

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.

View, edit, and annotate PDFsSign and fill PDF formsConvert files to and from PDF
💼 Business
(644K)
freemium
7
Google Play Books & Audiobooks
Google Play Books & Audiobooks
Google Play Books & Audiobooks
Books & Audiobooks
Free

Access millions of ebooks, audiobooks, comics, and manga in one app. Organize your library, enjoy customizable reading and listening experiences, and take your stories anywhere, even offline. Features include smart notes, kid-friendly tools, and voice control for audiobooks.

Millions of ebooks, audiobooks, comics, mangaOffline reading and listeningCustomizable library shelves
📚 Books
(9.6K)
free with in-app purchases
8
Bookview PDF Reader
Bookview PDF Reader
Bookview PDF Reader
Easy, simple PDF viewing
Free

Easily view, search, and share PDF documents on your device. Quickly browse files, bookmark pages for later, and zoom in for detailed viewing. This application offers stable and fast performance for all your PDF needs.

Browse and search PDF filesPreview and swipe through pagesBookmark pages
💼 Business
(0)
free
9
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
Read books & PDF files easily!
Free

This app allows you to read and listen to books and documents in various formats, including PDF and EPUB. It offers text-to-speech functionality, customizable reading settings, and a built-in book manager for your library. Enjoy an ad-free and registration-free reading experience.

Multi-format ebook support (EPUB, PDF, MOBI, DOCX, etc.)Text-to-Speech (TTS) for listening to booksAd-free and registration-free experience
📚 Books
(231)
free
10
QuickRead: PDF & Book Reader
QuickRead: PDF & Book Reader
QuickRead: PDF & Book Reader
Speed Reading, Notes & Aloud
Free
📚 Books
(0)
11
PDF Editor - PDF Reader
PDF Editor - PDF Reader
PDF Editor - PDF Reader
Edit, Sign, Scan & Convert PDF
Free
💼 Business
(0)
12
PDF Reader 2025
PDF Reader 2025
PDF Reader 2025
Quick PDF Viewer
Free
$0.99 | 100% OFF
📊 Productivity
(0)
13
PDF Reader - AI PDF Tools
PDF Reader - AI PDF Tools
PDF Reader - AI PDF Tools
Fast & Easy AI PDF Tools
Free
📊 Productivity
(0)
14
Image to PDF - ZPDF
Image to PDF - ZPDF
Image to PDF - ZPDF
Photo to PDF Converter & Maker
Free
📊 Productivity
(0)
15
Red PDF Reader
Red PDF Reader
Red PDF Reader
Pick up where you left off
Free
📊 Productivity
(0)
16
Smart PDF for normal people
Smart PDF for normal people
Smart PDF for normal people
Understand PDFs
Free
🔧 Utilities
(0)
17
PDF Reader-for Books
PDF Reader-for Books
PDF Reader-for Books
Read Docs, Files, eBooks
Free

Easily open and view all your important files, including PDFs, documents, spreadsheets, presentations, and images, in one straightforward app. Designed for simplicity and speed, it's your reliable companion for accessing digital materials and eBooks quickly with a clean interface.

Open PDFs and eBooksView Office files (.doc, .xls, .ppt)Access image files (.png, .jpg)
🔧 Utilities
(0)
ad-supported
18
Table of Contents PDF
Table of Contents PDF
Table of Contents PDF
Add PDF Table of Contents
Free
📚 Education
(0)
19
QuickPDF: PDF Tools & AI Chat
QuickPDF: PDF Tools & AI Chat
QuickPDF: PDF Tools & AI Chat
Your all-in-one PDF toolkit
Free
📊 Productivity
(0)
20
PDFCreateWhiz
PDFCreateWhiz
PDFCreateWhiz
by FIVE OCEANS
Free

Easily generate and convert PDF documents from photos, scans, or text. This app streamlines your workflow by quickly saving and organizing your created files for efficient work and study.

Scan to PDFConvert photos to PDFCreate PDF from text
🔧 Utilities
(13)
subscription

FAQ about Free PDF Books

What are the best free pdf books apps for iPhone?
eBook Search - download books tops our free pdf books apps ranking as of August 2026, with a 4.5-star average from 3.5K App Store ratings, and it's free to download.
eBook Search - download books shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 250+ free pdf books apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app functions as a digital library, offering access to over 2 million free eBooks. It allows users to search for and instantly download books across various genres directly to their preferred reading devices without requiring a library card.
Key features include access to a vast collection of over 2 million free eBooks, instant downloads to devices like Kindle, Nook, and iBooks, support for all genres, and the ability to access public domain books without a library card.