FREE $5 Amazon Credit for New Users to their App! Here's a hot way to add an easy $5 to your Amazon account with a free Amazon gift card! Those who have not previously signed into the Amazon app can earn a free $5 Amazon gift card, valid with the Amazon App or Underground App app. Directions: 1. Download the App HERE 2. Open it and Sign in with your Amazon ID and Password 3. You'll Get View Post