Oct 10th, 2013 Amazon presents its own third-party payment method
And, Amazon AppStore makes one paid application available for free every day. It's an excellent incentive to periodically launch the app.
Amazon AppStore has a wide variety of applications, rivaling Google Play. What it lacks in quantity, it makes up in quality. The store will also remember the apps you buy and link them to your Amazon account.
Amazon AppStore is one of the best app markets out there, and acts as a good complement to Android's Google Play default.