Plan your money, decide with confidence
Fifteen free tools for retirement, home-buying, cars, solar, equity comp, and moving abroad. No jargon, no tracking, nothing saved unless you sign in. All the math runs in your browser.
Plan your retirement
Will my money last?
Retirement Planner
The big one. Works out whether your savings can cover your spending from now through retirement, including taxes, healthcare costs, and different ways to draw money out.
Monte Carlo Stress Test
Runs your plan through 3,000 possible futures (good, bad, and ugly markets) and tells you the odds your money lasts.
Track your savings
Am I on track?
Compound Interest
Enter what you invest monthly, an expected return, and how many years. See the projected future value.
Equity Comp
Turn RSUs, ISOs, NSOs, or ESPP shares into the dollars that actually land in your bank after tax. Flags AMT on ISO exercises and the hold-period rules that change the tax rate.
Big purchases
Cash, borrow, or lease?
Mortgage Calculator
Enter the loan amount, rate, and term. See your monthly payment, total interest, and a year-by-year payoff table.
Car: Lease vs Buy
Compares paying cash, taking a loan, or leasing a new car every few years. Picks the option that leaves you wealthiest at the end.
Solar ROI
Works out how long solar panels take to pay for themselves, and compares the 25-year gain against simply investing the same money. Adds EVs and batteries if you have them.