goDutch is a handy application for calculating a gratuity, equally sharing a restaurant tab with tax and tip, and/or splitting a tab according to individual consumption . There are three modes of calculation - Quick, Split and Shared: Quick is the basic calculation of the gratuity for the total tab. Split mode is where it splits a check between the members of the dining party. Shared mode calculates the actual consumption for each member. No set-up is needed -- all necessary information is available all the time, right at your fingertips. No limitations to the number of guests you want to Split or Share the tab.