Free tools
Small calculators for real money decisions.
Each tool does one job well, runs entirely in your browser and takes a couple of minutes. Use them alongside the guides, then carry the numbers into the Furt app.
Budget calculatorEnter your take-home pay and monthly costs to see your needs, wants and savings split against the 50/30/20 guide, plus what is left unassigned.Open tool Sinking-fund plannerTurn yearly, quarterly and one-off costs like insurance, travel and gifts into a calm monthly set-aside with this free sinking fund calculator.Open tool Safe-to-spend estimatorSee how much you can safely spend per day for the rest of the month from your budget, what you have spent so far and any bills still due.Open tool Subscription auditList every recurring charge with its billing cycle to see the true monthly and yearly cost, then flag what to keep, review or cancel.Open tool
Private by design
Nothing you enter is sent to a server. Your numbers are kept in this browser only, so you can pick up where you left off.
Any currency
Pick the currency you think in. The tools only format numbers; they never convert between currencies.
Built from the guides
Each tool applies an idea from the library, such as sinking funds or the 50/30/20 split, so you can try the method before reading about it.
Meet the app
Turn the idea into a habit.
Track spending, plan budgets, and understand where your money goes—privately and without the spreadsheet headache.