Calculators

One sum each, with the working underneath it. Every amount reconciles to the cent, nothing here asks for an account, and there is an answer on screen before you have typed anything.

Splitting a billNo calculator for that one, because it is the whole app. A bill wants everybody who was at the table, and a figure sitting in a form is a figure one person has to retype into the group chat.Start a split

Takes ten seconds. No email, no password, no download.

Rent split calculator by room sizeSplit rent between flatmates in proportion to room size, with a slider for who is better off. The amounts reconcile to the cent.
Mileage split calculatorCost a drive at the official mileage rate, which prices the whole car rather than the petrol, and split it between everyone who was in it.