Square - Square helps millions of sellers run their business-from secure credit card processing to point of sale solutions. Get paid faster with Square. Sign up today!
UI Sources - Mobile design patterns & interaction videos
Lightspeed - retail and restaurant point-of-sale, ecommerce, and omnichannel solution
Product Hunt - A website that lets users share and discover new products
ITSCircle POS - ITSCircle POS is a point of sale solution for retail stores.
Page Flows - User flow design inspiration for mobile & desktop