Tủ Sách is a free Android app developed by Tran Phuoc Tu that offers thousands of ebooks, ranging from classic literature to high-level economics and philosophy books. With Tủ Sách, there's no need to search for books on different websites or download ebook files, as everything is readily available within the app.

The app's features include categorized book lists, regular updates of new books, personalized bookshelves, detailed book information, community reviews, downloading and reading ebooks, offline reading support, reading progress saving, book rating, and more. Tủ Sách aims to provide users with a user-friendly and modern interface, making it a reliable companion for those who enjoy reading books every day.