PrismKitCalculatorsTip CalculatorTip CalculatorRuns in your browserLocalCopy linkMarkdownWork out the tip and total on a bill, and split it evenly between any number of people.Alarm ClockSet browser alarms for a date and time, chosen weekdays or a cron schedule in any time zone, with sound and notifications while the page is open.Amortization CalculatorCalculate the monthly payment on a loan and see the full principal/interest schedule.