I am using this amazon kindle app on my samsung phone j7 series which is awesome. It will give a chance to explore a lot of books and there are free ebooks also by the name samsung book deals which gives you opportunity to read some books free. The deal is you got one book free for every month. Amazon Kindle gives a lots of books in reasonable prize and there are offers too. I will suggest new readers to use this app as it is a fair of new books.