I was looking for a referral app that could meet these criteria: Uncomplicated to use for customers // Modern and customizable appearance // Not too flashy on the storefront. After testing several referral apps, I almost gave up hope until I found this one. PROs: Very well-thought-out app //Easy to set up // Various customizable options to integrate widgets in the store. I am using a subtle widget which is not right "in-your-face". Widgets can be flashy and obvious if wanted. // Beautiful & modern design // Fast, friendly and competent support. Thanks, Mostafa! CONs: None