Did you have a kindle fire and upgrade your tablet or phone to android, but didn't want to pay for all of those apps again? If the answer is yes, I have just what you need. I will walk you through the whole process (which is quite simple) of installing the amazon appstore on your android device and saving several gift cards worth of money.
Preparations: Go into Settings-Security-Unknown Sources and check it. You will need this to install the appstore itself and any apps in it.
Step 1: Go into your browser and type "install amazon appstore" in the search bar. Select the first result. Click "download".
Step 2: Once the install is finished, go into the app and log in to your regular amazon username/email and password. You can browse around the store if you want, but if you are following this guide tap the button with 3 lines next to the amazon logo in the upper left hand corner. In this menu you will find a button labeled "my apps". When you go into it and select "cloud" at the top, you will find all of the apps that you bought on amazon.
I hope you found this useful, and if you enjoyed it, please reshare and spread the good news!