(Submitted for US only) A tip is no longer just a number. Dumb Waiter is a tip calculator... with a twist. Calculate the tip based on the actions of your waiter. Were you given exceptional service? There?s an option for that! Did it take an hour to get your drinks only to find that they were wrong? There's an option for that, too! Only Dumb Waiter lets you customize the most appropriate tip based on an array of different factors.

Dumb Waiter screenshots: