Small calculators we keep because they are useful. No signup, nothing stored, no upsell.
Cash App fee calculator: what lands in your account after an instant transfer, and what the fee costs you.
Depop fee calculator: what you actually keep on a sale, using the current fee structure rather than the one everyone still quotes.
Venmo fee calculator: what each type of Venmo transaction costs, from instant transfers to card payments.
Fractional CTO cost calculator: part-time against full-time technical leadership, by company stage. Rates are indicative and editable: they vary widely by country and by market conditions.
Fee structures change, and they change without announcements. We check ours and print the date, but confirm anything that matters against the platform before you rely on it.