3. Sumatra (Windows) Sumatra is a popular, free, lightweight, and portable PDF and ebook reader for Windows 10. While it may not be cross platform, Sumatra has a a few other aces up its sleeve. For example, it supports the ePUB ebook format (unlike other tools). Aldiko is one of the best book reader app with tons of features and flexibility. It is undoubtedly one of the best epub reader app and pdf reader app. The app supports most ebook formats, including EPUB, PDF files, and Adobe DRM encrypted books. Some of the best PDF readers for Windows and Android that you can look at include- 1. KITABOO KITABOO is an interactive eBook reader for Windows and Android users that supports multiple formats, including PDF. Among some of the key features of the KITABOO eBook reader are- Google Play Books. Google Play Books is a good eBook Reader app coming from Google and is completely free. This reader app does support tablets allowing you to read the books from Google's servers and customize the display options. With a collection of more than 4 million books, Google Play Books app offers many genres to the users and let The Best Prime Day eReader Deals This Week*. *Deals are selected by our commerce team. Kindle Essentials Bundle. (Opens in a new window) — $124.97 (List Price $139.97) Kindle Paperwhite 8GB 3. Bookari. Bookari Ebook Reader was formerly called the Mantano Reader. It is one of the best reader apps available on smartphones. Similar to the kindle services like an exclusive ebook store is available along with cross-device syncing. It supports many formats like EPUB, PDF, etc. YunnLow Power Consumption E-book Reader. The Yunn e-book reader comes with a 6" E Ink screen with 800 x 600p resolution, 167 dpi, and black and white display effect. The E Ink makes the screen look like ink on paper in order to ensure a comfortable reading experience even in direct sunlight. Best all-around e-book reader $140 at Target Kindle Oasis Best premium e-book reader $250 at Amazon Amazon Kindle 2019 Best budget e-reader $90 at Amazon Kobo Libra H20 Best non-Amazon e-reader Best PDF Readers For Android 1. Adobe Acrobat Reader For many people, Adobe Acrobat Reader is the default choice PDF reader for Android. You can view, edit, sign, comment, and even export documents from your Android device. And you can store your file safely online and still access it on the go using this PDF reader. Importing files into this app is also fairly simple with its one-click import feature. 9. Wattpad. Wattpad is a simple eBook reader with a friendly user interface. Getting an eBook is easy with this app: you can either find the book via the app's internal browser or key in the book code. 2 Lithium. Lithium, as a professional Epub reader, is a relatively new app in the block of ebook readers with fewer functions or features. If you are looking for a much simple reader to read your epub books without any added frills, Lithium, trust me, can serve your need. The greatest feature of this epub reader can be summarized as one word The basic app is free, but a $4.99 premium flavor kicks in a text-to-speech reader, a translator, and built-in support for PDF and comic book formats. 8. KyBook. Designed for iOS and iPadOS The basic app is free, but a $4.99 premium flavor kicks in a text-to-speech reader, a translator, and built-in support for PDF and comic book formats. 8. KyBook. Designed for iOS and iPadOS The Remarkable 2 has a passionate following an