Have discovered the app randomly and equally brought out of curiosity on your mobile phone. If I have times no room for the Kindle in my purse, I can now easily read all my Kindle books on mobile phones. If I want to read the same book at home on the Kindle, I get even a hint where I left off on the mobile phone to read. Conversely, of course, exactly. Handling is similar to the Kindle. Great Thing! Highly recommended !!