PocketBook Reader is a free app that allows users to read e-content, including books, magazines, textbooks, and comic books, as well as listen to audiobooks. The app supports 26 book and audio formats, such as mobi, epub, fb2, cbz, and cbr, and allows users to read without ads and with total comfort. It offers support for 19 book formats, including popular ones like EPUB, FB2, MOBI, PDF, DJVU, DOCX, RTF, TXT, and HTML, as well as comic book formats CBR and CBZ. Users can listen to audiobooks and other audio files in MP3, M4B, and take notes in them.

Downloading and syncing content is easy with the app's built-in bookstore, which has a large and regularly updated assortment of e-content that users can purchase online in a few clicks. The app also has a free PocketBook Cloud service for synchronizing all books, including audiobooks, as well as reading positions, notes, and bookmarks on all devices. Users can connect their files from Dropbox, Google Drive, and Google Books services to the app to create one consolidated library. The app also supports OPDS catalogs, which provide access to network libraries, and has an ISBN scanner for quick search of electronic versions of books by barcode.

The app has an intuitive interface, easy navigation, and minimalistic design, and users can choose one of the seven interface color themes, reassign the buttons and display areas, and customize the home screen with widgets, navigation, and calling functions. Users can adjust the font style, font size, line spacing, and margin size, and customize the animation of turning pages. The app also allows users to crop margins to make the page look exactly the way they want. Users can create widgets on the home page for quick access to cloud services and libraries in one click, and all files are quickly found and instantly opened, even with built-in audio and video fragments.

PocketBook Reader also has built-in dictionaries and a translator, convenient search in Google and Wikipedia, the ability to download custom fonts, and quick feedback and prompt assistance in the Play Market, guaranteed help via the User Technical Support Service. Users can make bookmarks, take notes, and add comments, and quickly find all their notes and share them with friends via email or messengers. They can also collect all their notes, bookmarks, and comments into separate files for even greater convenience.

Overall, PocketBook Reader is a versatile and user-friendly app that offers a wide range of features for reading and listening to e-content, as well as customizing the reading experience to suit individual preferences. With its built-in bookstore, cloud service, and support for various file formats, the app provides a convenient and comprehensive solution for managing and enjoying e-content on multiple devices.