I recently got a request to review the social netwoking app 'SUP!' and I've got to say, it's one of the nicer social calendar apps I've tried. It's got nice custom graphics and very easy navigation with five clear buttons on the bottom and then the on calendar buttons as well. The registration for this app was very quick and easy, took less than two minutes to get up and running. I loved the quick tutorial; it was only about 2 minutes at the most but gave me a good understanding of the app and how to use it without wasting my time describing every tiny detail of the app. Creating an event was nice and easy with quite a few built in event types along with the custom option.