POWr Apps Tutorials Wix Mailing List - Select - English German Spanish POWr Plugins have been installed over 3,000,000 times Add a Mailing List App on Wix in just a few easy steps Beginner tutorial from POWr - Updated: 02-13-2017 - Published: 01-04-2014 Demo and Pricing Sign Up STEP Search Wix App Market Open the Wix App Market and search for POWr Mailing List. Add it to your site. I'm stuck on this step STEP Edit App Double click the POWr Mailing List to open its App Settings. You can now customize the app. I'm stuck on this step STEP Publish Site Click Save and Publish to update your live site. I'm stuck on this step That's it! You're done!