Margin: Profit Calculator

See your real monthly profit in seconds. Add income and costs, Margin does the math and charts.

Margin turns your income and expenses into a clear monthly profit — automatically.

Just add what comes in and what goes out. Margin normalizes every amount to a monthly figure (yearly costs divided by 12, quarterly by 3) and instantly shows your profit, margin and a full breakdown with charts.

WHAT YOU GET • Profit dashboard — net profit per month, per year and per day at a glance • Margin percentage — know exactly how much of your revenue you keep • Income & expense list — add, edit and delete entries in seconds • Flexible frequency — monthly, quarterly, yearly or one-time • Categories — group costs (tools, infrastructure, staff, office and more) • Charts — bar chart of revenue vs cost vs profit, plus a donut of your cost breakdown • Ranking view — see which costs eat the most, sorted with percentages • USD ⇄ VND converter — built-in currency tool with an editable exchange rate

BUILT FOR • Indie makers and solo founders tracking app or product income • Freelancers checking real take-home after their recurring tool costs • Small businesses watching monthly burn and margin • Anyone who wants a fast, private profit calculator

PRIVATE BY DESIGN All data stays on your device. No account, no sign-up, no tracking, no ads. Margin is completely free, with no in-app purchases.

Add a few entries and Margin shows you the number that matters: what you actually keep.