Metricks is a powerful tool allowing you to automate customer affiliate programs for your WooCommerce store. Get more sales from word-of-mouth Reward customers for referring their friends to your store Easy install. 14 day risk-free trial. Get up and running today! Boost your sales with a affiliate marketing program Metricks helps you increase your sales by rewarding your customers when they refer people to your store. We give your customers a personal affiliate link that they can share with their friends. Easily add a refer-a-friend program to your store Simple to get up and running today — no developers needed!