Most financial calculators solve one problem in isolation. Keyfinio shows your complete picture — mortgage affordability, Buy vs. Rent comparison, RSU vesting, childcare costs, 529 tracking, and wealth projections all in one free dashboard. Also launching: a standalone Buy vs. Rent calculator (keyfinio.com/buy-vs-rent) with zero login required. Drag a slider to see how the math shifts over 1-15 years. No subscription. No credit card. Free forever.