This is official Summing Up application to simplify setup of wonderful magic effect by Marc Paul. If you don't know what this is or don't know who Marc Paul is, this app is not for you. You will only benefit from this application if you ever attended Marc's lecture or purchased his latest Penguin magic video - Marc Paul LIVE (Penguin LIVE). The algorithm is exactly the same as the one online version is using.Of course nobody is forcing you to buy this app - you can keep happily using the website. This has been developed for those who were complaining about not being online all the time. This application doesn't need internet connection to do the calculations!