27 Free & Paid eBook Apps Every Reader Should Try
If you’re anything like me, you probably love the idea of having books with you all the time—but carrying them around? Not so fun.
The good news is, you don’t need a Kindle or a shelf full of hardcovers to enjoy reading anymore.
All it takes is the right app on your phone, and suddenly you’ve got a whole library in your pocket.
The best part… You don’t have to spend a fortune.
Some of these apps are totally free, letting you borrow books from your library or dive into classics that never get old.
Others give you access to millions of new titles with just a small subscription.
And then there are apps that focus on the little details—like changing the font, background color, or even adding text-to-speech—so reading feels exactly the way you want it to.
In this guide, I’ve put together 27 free and paid eBook apps that I think every reader should at least try once.
Some are big names you’ve definitely heard of, while others are hidden gems worth discovering.
My goal… To help you find that one app that makes you stop saying “I should read more” and actually start reading every day.
1. Kindle
When most people think of eBooks, Kindle is the first name that comes to mind—and for good reason.
Amazon has built one of the largest eBook ecosystems in the world, with millions of titles ranging from the latest bestsellers to timeless classics.
The Kindle app works on iPhone, Android, iPad, and even desktop, so you can pick up right where you left off, no matter which device you’re using.
Features like Whispersync make it easy to switch between reading and listening, while tools like X-Ray let you explore characters, locations, and themes without leaving the page.
The app itself is free, and while most books are paid, there are plenty of free titles, samples, and even Kindle Unlimited if you’re a heavy reader.
Also Read: Best Book Summary Apps
2. Google Play Books
If you’re someone who doesn’t like being tied to just one platform, Google Play Books is a solid choice.
It’s available on both iOS and Android, and it also works right in your web browser.
The best part is, you don’t need a subscription. You simply buy the books you want, and they’re yours to keep.
Play Books also lets you upload your own PDF and EPUB files, which makes it great for students or anyone who collects eBooks outside of app stores.
The reading experience is clean and customizable, with adjustable fonts, night mode, and offline access.
Plus, Google often runs deals and discounts, so you can snag popular titles at lower prices.
For anyone who likes flexibility, this app is worth a try.
Also Read: Best Book Writing Apps
3. Kobo Books
Kobo may not be as widely known as Kindle, but it’s one of the best alternatives out there, especially if you value openness and customization.
With over 6 million titles in its catalog, Kobo’s app gives you a lot of variety, from mainstream bestsellers to indie gems.
It supports multiple file types, including EPUB, which makes it friendlier if you already have an existing collection.
Kobo also offers a subscription plan called Kobo Plus, which gives you unlimited access to thousands of eBooks and audiobooks for a monthly fee.
Beyond just reading, the app has useful extras like highlighting, note-taking, and syncing across devices.
If you’ve been looking for a strong Kindle competitor that respects different formats, Kobo is definitely worth checking out.
4. Libby (by OverDrive)
Libby is hands down one of the best free eBook apps you can download.
It connects directly to your local library, allowing you to borrow eBooks and audiobooks the same way you’d check out physical books—only now, it’s instant and digital.
All you need is a valid library card, and you’ll get access to a huge selection without paying a dime.
The interface is simple and friendly, with features like bookmarking, note-taking, and adjustable fonts to make reading more comfortable.
You can even download books for offline reading or stream audiobooks on the go.
Since it’s backed by OverDrive, Libby works with thousands of libraries worldwide.
If saving money while still enjoying great books sounds good, this app is a must-have.
Also Read: 27 Free Novel Reading Apps Every Book Lover Should Try
5. Moon+ Reader
For Android users who love customization, Moon+ Reader is a dream come true.
It supports almost every eBook format you can think of, including EPUB, PDF, MOBI, and even comic book files.
The app is packed with options to tailor your reading experience—fonts, themes, line spacing, page flipping effects, and more.
There’s even a text-to-speech feature if you want your books read aloud.
The free version is ad-supported, but the Pro version is affordable and unlocks extras like PDF support, advanced highlighting, and cloud syncing.
What makes Moon+ Reader stand out is the way it lets you turn your device into a truly personal reading tool.
If you like tweaking every little detail, this app will make you feel right at home.
6. FBReader
FBReader has been around for years and has built a loyal following among serious readers who prefer flexibility over flashy design.
The app supports a wide range of formats—EPUB, MOBI, FB2, RTF, HTML, and more—making it a great option if your eBook collection comes from different sources.
It also syncs your library and reading progress across devices through its own cloud service, which means you’ll never lose your place.
The interface is clean and lightweight, and while it doesn’t look as modern as some newer apps, it runs smoothly even on older devices.
FBReader is free to use, but there’s also a Premium version that removes ads and adds extras like PDF support and text-to-speech.
If you want a reliable all-rounder, FBReader won’t disappoint.
Also Read: 31 Apps for Book Lovers
7. ReadEra
ReadEra is one of those hidden gems that doesn’t get as much attention as Kindle or Google Play Books, but readers who discover it often stick with it.
It’s completely free, has no ads, and doesn’t even require you to create an account. Just install it, add your eBooks, and start reading.
ReadEra supports EPUB, PDF, DOC, RTF, TXT, and many other file types, so it’s perfect for people who keep a mix of textbooks, novels, and study materials.
The app automatically organizes your library, remembers your reading progress, and offers multiple viewing modes like single page, dual page, or continuous scrolling.
If you’ve been looking for a simple, clutter-free reading app that just works, ReadEra is definitely worth trying.
Also Read: 25 Best Reading Apps for Kids of All Ages (Free, Paid & Online)
8. Freda
Freda is an excellent choice for Windows and Android users who want a customizable and budget-friendly eBook reader.
It has a modern interface and supports EPUB, MOBI, FB2, HTML, and TXT files.
One of the highlights of Freda is its integration with free online catalogs like Project Gutenberg, Feedbooks, and Smashwords, which means you can legally access thousands of free eBooks right inside the app.
The reading experience itself is smooth, with options to adjust fonts, colors, and layouts to your liking.
Freda even has a text-to-speech option, which is useful if you want to give your eyes a break and listen instead.
The app is supported by ads, but they’re unobtrusive, and you can pay a small fee to remove them permanently.
9. Calibre
Calibre isn’t just an eBook reader—it’s more like a complete eBook management system.
Available for Windows, Mac, and Linux, this free and open-source software lets you read, organize, and even convert eBooks into different formats.
That means if you have a file that doesn’t work on your device, Calibre can usually fix it for you.
The built-in reader is functional and works well for casual reading, but where Calibre really shines is in its ability to manage large eBook libraries.
You can edit metadata, download book covers, sync with eReaders, and even share your collection across devices.
While it may feel overwhelming at first, Calibre is a must-have tool for anyone serious about digital reading and organizing their library.
10. Sumatra PDF
If you’re a Windows user who values speed and simplicity, Sumatra PDF is a fantastic option.
It’s one of the lightest eBook readers out there, making it perfect for older computers or people who don’t want a heavy app slowing them down.
Sumatra supports PDF, EPUB, MOBI, CHM, XPS, and even comic book formats like CBZ and CBR.
The interface is extremely minimal—no flashy buttons or complicated menus—just you and your book.
While it lacks advanced features like annotations or highlighting, it makes up for it with sheer performance.
The app opens almost instantly and runs smoothly, even with large files.
Best of all, it’s completely free and open source.
If you want a no-nonsense reader that simply works, Sumatra PDF is the way to go.
11. Icecream Ebook Reader
Icecream Ebook Reader is a solid option if you’re looking for a simple yet powerful eBook reader for Windows.
It supports EPUB, MOBI, PDF, and several other formats, making it versatile for most readers.
The free version gives you all the basics like bookmarks, full-screen mode, and night mode, but if you want more advanced features like annotations, copying text, or importing multiple books at once, you’ll need the Pro version.
One thing readers love about Icecream is its clean, user-friendly design that feels natural even if you’re new to digital reading.
It also keeps your progress synced across your library, so you can easily jump back into any book.
For desktop readers who don’t want to mess around with complicated tools, this app is a reliable choice.
12. Media365 Book Reader
Media365 is an Android-exclusive app that feels a little different from traditional eBook readers.
Instead of just opening your own files, it offers a huge catalog of indie and niche books you can explore for free.
With support for over 50 different file types—including EPUB, PDF, DOCX, and more—it’s also great for importing your personal collection.
What makes Media365 interesting is its emphasis on community publishing.
Many new authors use the platform to share their stories, so you’ll find books here that aren’t available elsewhere.
The app is free with ads, but you can upgrade to a premium plan to unlock extra features like ad-free reading, offline access, and cloud syncing.
If you love discovering hidden gems, Media365 is worth keeping on your phone.
13. Epic!
Epic! is designed for younger readers, and it’s one of the best apps for getting kids excited about reading.
The app is filled with thousands of children’s books, audiobooks, and even educational videos.
Teachers often use it in classrooms because of its kid-friendly interface and built-in tracking tools.
Parents can also create individual profiles for their children, set reading goals, and monitor progress.
Epic! runs on a subscription model, though it offers a free trial, and some schools provide free access for students.
The colorful design, badges, and achievements make reading feel like a game, which helps kids stay motivated.
If you’re a parent or teacher looking for a safe, engaging way to introduce kids to eBooks, Epic! is an excellent choice.
14. Yomu EBook Reader
Yomu is a sleek, lightweight eBook reader made specifically for iPhone and iPad users.
It supports EPUB, PDF, MOBI, and many other formats, so you won’t have trouble opening your files.
One of its biggest strengths is cloud integration—you can import books directly from iCloud, Dropbox, or Google Drive, which makes it easy to manage your collection across devices.
Yomu’s design is clean and distraction-free, giving you a comfortable reading space without unnecessary clutter.
It also offers customization options like themes, font adjustments, and reading statistics to track your progress.
Unlike some iOS readers that push subscriptions, Yomu keeps things simple with a one-time purchase for premium features.
If you’re an Apple user who values a clean and flexible experience, Yomu is a great pick.
15. Foxit PDF Reader Mobile
Foxit is well-known for being one of the best PDF readers out there, and its mobile app makes it a perfect choice for anyone who reads a lot of textbooks, research papers, or manuals.
Unlike many eBook apps that treat PDFs as an afterthought, Foxit focuses heavily on making them easy to use.
It offers features like text reflow (so you don’t have to pinch and zoom constantly), annotations, highlights, and even digital signatures.
You can also connect it with cloud services like Google Drive and Dropbox, making it easy to store and access your files anywhere.
The app is free to use, but upgrading unlocks advanced features like password protection and editing tools.
For readers who rely on PDFs, Foxit is a must-have.
16. Inky Pen
Inky Pen is a bit different from the traditional eBook readers because it focuses mainly on comics and graphic novels.
Originally launched on the Nintendo Switch, it has grown into a platform that lets you explore a wide library of titles, from indie comics to well-known publishers.
Instead of buying individual issues, Inky Pen works on a subscription model, giving you unlimited access for a monthly fee.
The app is easy to use, with smooth page scrolling and options for panel-by-panel viewing, which makes it comfortable to read on smaller screens.
While it may not replace your go-to novel reader, Inky Pen is a fantastic pick for anyone who enjoys illustrated stories and wants a budget-friendly way to read comics digitally.
17. Wattpad
Wattpad has become a global hub for storytelling, where millions of writers and readers come together.
Unlike apps that only let you consume books, Wattpad encourages you to create and share your own stories with the world.
Many well-known novels actually started here, and you’ll often find exciting, original works before they ever get published traditionally.
The app itself is free, though it’s supported by ads, and there’s a premium version for ad-free reading and offline access.
Wattpad is especially popular among younger readers who enjoy interactive storytelling and discovering fresh voices.
If you like the idea of a community-driven platform where you can both read and write, Wattpad is one of the most engaging eBook apps available today.
18. Blinkist
Sometimes you don’t have the time to sit down with a full-length book, and that’s where Blinkist shines.
Instead of giving you entire books, Blinkist summarizes nonfiction titles into short, easy-to-digest “blinks” that you can read or listen to in about 15 minutes.
With thousands of bestsellers and trending titles in its library, it’s a favorite among busy professionals, students, and anyone who wants to learn on the go.
Blinkist isn’t free, but it does offer a limited trial before requiring a subscription.
The app also integrates with audio playback, making it easy to switch between reading and listening.
If you’ve ever wished you could absorb key takeaways without committing to a full book, Blinkist is a game-changing app worth having.
19. Goodreads
Goodreads isn’t just about reading—it’s about building a community around books.
Owned by Amazon, it’s the world’s largest social platform for readers, where you can track the books you’ve read, create reading lists, and see reviews from millions of other users.
The Goodreads app lets you scan book covers, discover new titles, and join discussions with like-minded readers.
While it’s not an eBook reader in the traditional sense, it integrates seamlessly with Kindle, making it easy to add books to your shelves.
The app is completely free and a must-have if you enjoy sharing recommendations, setting yearly reading goals, or simply keeping your reading life organized.
If you believe reading is better when shared, Goodreads is an essential companion to your eBook apps.
20. Inkitt
Inkitt is another app focused on discovering new and upcoming authors.
It works a lot like Wattpad, but with a more curated feel—stories are selected based on reader engagement, and popular ones often get published by Inkitt’s own publishing arm.
The app is completely free, offering access to thousands of novels across genres like romance, fantasy, sci-fi, and thrillers.
Readers can personalize their experience with adjustable fonts and themes, while offline mode makes it easy to keep reading on the go.
One of Inkitt’s unique features is its data-driven approach: the platform uses reader feedback to decide which books deserve wider distribution.
If you love being the first to discover hidden gems before they become mainstream hits, Inkitt is a fun place to start.
21. Hoopla
Hoopla is a fantastic choice if you’d rather borrow books instead of buying them.
Partnered with thousands of libraries across the U.S. and Canada, Hoopla gives you instant access to eBooks, audiobooks, comics, and even movies and TV shows—completely free with a valid library card.
The app works on iOS, Android, and even smart TVs, so you can enjoy your borrowed content anywhere.
Hoopla’s interface is clean and easy to navigate, and books can be downloaded for offline reading.
While availability depends on your local library’s catalog, it’s still one of the most convenient ways to read without spending a dime.
If you love the idea of borrowing digital books as easily as physical ones, Hoopla is a must-have app.
22. ManyBooks
ManyBooks started as a free online library and has grown into one of the most popular sources for classic and indie eBooks.
The app and website give you access to over 50,000 titles, most of which are in the public domain or offered for free by independent authors.
You’ll find classics from authors like Jane Austen, Mark Twain, and Arthur Conan Doyle alongside new works from up-and-coming writers.
ManyBooks also offers personalized recommendations and book deals if you’re looking to expand beyond free titles.
It supports common formats like EPUB and PDF, making it compatible with almost every device.
For readers who enjoy mixing timeless literature with fresh discoveries, ManyBooks is a reliable and budget-friendly option.
23. Project Gutenberg
Project Gutenberg is the pioneer of free digital libraries, and it’s still one of the best places to find classic literature online.
With over 60,000 free eBooks available, it focuses on titles that are in the public domain.
The selection includes everything from Shakespeare and Dickens to early science fiction and philosophy.
You don’t even need to download an app to access it—though many third-party apps integrate with Gutenberg’s collection for easier reading.
Books are offered in multiple formats, including EPUB, Kindle, HTML, and plain text, so you can choose whichever works best for your device.
If you’re looking for a completely free way to build your personal digital library, Project Gutenberg remains a cornerstone of the eBook world.
24. BookBub
BookBub is a bit different from traditional eBook apps because it doesn’t focus on reading—it focuses on helping you find the best deals.
Once you sign up and choose your favorite genres, BookBub sends you daily alerts about free and heavily discounted eBooks from Amazon, Apple Books, Kobo, and other platforms.
Many of the books featured are from well-known authors, making it a great way to expand your library without overspending.
While BookBub doesn’t have its own built-in reader, it directs you to the right store to claim the book, and you can then read it on your favorite app.
If you’re always hunting for a bargain, BookBub is the ultimate tool for stretching your reading budget.
25. Storipod
Storipod is an up-and-coming platform that combines reading with social interaction.
It’s designed for people who enjoy both consuming and discussing stories, with a focus on fresh, modern writing.
You can explore works from new authors across genres like romance, adventure, and fantasy, while also sharing your own stories with the community.
The app includes offline reading, bookmarking, and customizable text settings, but its real strength lies in its social features—comments, likes, and direct feedback make reading more interactive.
While it’s not as established as Wattpad or Inkitt, Storipod is carving out a niche for readers who want a mix of community and discovery.
If you like being part of a conversation around books, it’s definitely worth checking out.
26. Cantook (Aldiko)
Cantook, also known as Aldiko, is one of the oldest and most trusted eBook readers on mobile.
It supports a wide range of formats, including EPUB and PDF, and it’s especially popular for its clean design and easy-to-use library management.
Unlike some apps that push you toward buying books from their store, Aldiko focuses on giving you full control of your own collection.
You can import eBooks from your device, customize the reading experience with themes and fonts, and even access free catalogs of public domain works.
It also has strong international support, with books available in multiple languages.
Whether you’re new to digital reading or just want a straightforward app without extra clutter, Cantook is a reliable choice.
27. Kindle Unlimited / Kobo Plus / Everand / Perlego
If you’re a heavy reader, subscription-based eBook services might save you a lot of money.
Kindle Unlimited, Kobo Plus, Everand (formerly Scribd), and Perlego all offer unlimited access to thousands—sometimes millions—of titles for a monthly fee.
Kindle Unlimited is best if you’re already deep in the Amazon ecosystem, while Kobo Plus works well for readers who like EPUB compatibility.
Everand offers not only eBooks but also audiobooks, magazines, and documents, making it a versatile choice.
Perlego, on the other hand, is geared toward students and professionals, with a huge catalog of academic and nonfiction titles.
Instead of paying per book, you can read as much as you want for one flat rate.
For book lovers who read constantly, these services can be a game-changer.
My Final Take
Here’s the truth—there’s no single “best” eBook app that works for everyone.
Some people just want a simple, free way to borrow books from the library, while others love customizing every little detail of their reading experience.
And then there are readers who burn through books so quickly that a subscription service makes the most sense.
For me, the magic of these apps isn’t just about convenience.
It’s about always having a story ready—whether you’re stuck in a long line, waiting for a bus, or winding down before bed.
Books fit into your life more easily when they’re just a tap away.
So try a few of these apps, see which one clicks with your style, and don’t be afraid to mix and match.
Because at the end of the day, it’s not about the app you choose—it’s about the stories you get to carry with you.
