Small tools · saved locally · easy to reuse

Calculators

A collection of self-contained calculators for everyday planning and shared decisions.

Group Expense Tracker

Split shared costs by group, headcount, date ranges, and prior payments. Share a snapshot or a live cloud tracker that anyone can edit.

CSV import/export Share links Cloud sharing

Retirement Planner

Project savings year by year and run a thousand market simulations to see how likely your plan is to last.

Monte Carlo Private / on-device