The app is free to download and use ... However, you can get the Kindle app from the Amazon Appstore and use your Fire tablet ...

Amazon's Fire tablets run on Fire OS, a forked version of the Android operating system. Because the core software is Android, substituting or replacing the Amazon App Store with the Play Store ...

Amazon's operating system and apps Amazon's operating system (OS) on its Fire HD tablets is a highly modified version of Google's Android OS, but you don't get access to a huge range of popular ...

However, there's one important thing you need to know before buying a Fire tablet: You're limited to the apps available in Amazon's App Store, which means you're not going to have access to Google ...

Unlike Nook's tablet, Amazon's Fire tablets are firmly locked into the Amazon ecosystem. For example, it's not possible to download the Nook app onto a Fire device from the Amazon App Store.