If you read ebooks a lot, you may have noticed that EPUB is the most widely adopted ebook format. Almost all mainstream eReaders, computer operating systems or ebook reader apps support this format except some Kindle devices (If you have epub books that you want to read on your Kindle, you can send epub to Kindle). In this article, I will share with you the best 10 free epub readers for Android smartphones or tablets to help you read epub ebooks on the screen with the most pleasant reading experience.