Bolso
Tools · Bolso

Three calculations worth doing before you change app

Calculators for the decisions that usually come before tracking anything: how to split bills when incomes differ, whether the month closes on paper, and whether the best-known budgeting rule fits you at all.

All of them run in your browser. Nothing is sent to a server, nothing is stored, and the figures disappear the moment you reload the page.

  1. 01
    For couples on different salaries

    Split expenses by income

    Splits shared costs in proportion to what each person takes home, rather than down the middle. Shows each share, each amount, and the working behind it.

  2. 02
    To see whether the month closes

    Monthly budget planner

    Income minus fixed costs, variable costs and your savings target. Tells you what is left — or what is short, which is when the sum earns its keep.

  3. 03
    To test the rule against your rent

    50/30/20 calculator

    Applies the rule to your income, then compares it against what your essentials actually cost. Past 50%, it rebalances the remainder on the same ratio.

The maths is the beginning.

Bolso follows the month after the decision — budgets, scheduled payments and shared expenses, with no bank accounts connected.

Download on the App Store