The goal of the Gromo App Refer and Earn program is to incentivize current Gromo app users to invite new users to sign up for the service. Gromo isrummy vip new a smartphone app that makes it easier to find and reserve local events, activities, and experiences. By successfully referring new users to the app, current users can earn rewards through this program, such as cash bonuses or booking discounts. There are various uses for this referral system.