To install the app, first go to Settings – Security / Applications -Check the Unknown Sources box. Now browse to the “downloads” folder and look for the Amazon_App.apk. Tap on this file, install the app and sign-in using your Amazon account.
Inside the app, tap on the three lines on top left corner of the screen and look for “UNDERGROUND APPS” Section to access the Apps and Games section. If Its Missing Then head over to App’s settings, then change your region to the USA (America) and you’re good to go. The games and apps tagged under ‘Actually Free’ banner are the ones that are FREE Or offer free in-app purchases.