Add the S&H Green Stamp app to your phone
Once you've created an account here, use your mobile phone to navigate to app.greenstampsforgood.com
NOTE: Before you log into the mobile app using your email and password that you used when you created your account, add the S&H Green Stamp icon to your phones home screen as a favorite by following the instructions below. If you log in first, you will need to log out and re-navigate to app.greenstampsforgood.com to add the icon.
iPhone
You can add the S&H Green Stamp icon to your iPhone Home Screen for quick access to the S&H app.
Once you get to app.greenstamps.com, tap 
at the bottom of the screen, then select Add to Home.
Android Phone
When you get to app.greenstampsforgood.com tap the 3 dots in the upper right of the screen and select add to home screen.
When you make a purchase at a participating merchant, use the app to scan the store code.