Tipsie Calc is a free tip calculator that is also completely ad-free. You can simply enter the bill amount and select the tip percentage to get the total amount to be paid after tip. You can also do things like splitting the amount amongst up to 100 people, round up or round down the final amount, and enter custom tip percentage amount. The app has no distractions and simply does what it is meant to do. The app shows information like the tip amount you are paying, the amount and tip per person to be paid and much more.