About

About HabitCost

HabitCost helps you see what small, recurring habits actually cost — not per cup or per pack, but per year, per decade, and as an opportunity cost if the money were invested instead. It's a financial-awareness tool, not a habit tracker: the goal is clarity, so you can decide what's worth it.

How we calculate

Yearly cost is simply price × how often per week × 52 weeks. The “if invested” figures treat what you'd have spent as a yearly contribution growing at a rate you choose (default 7%) — an ordinary annuity. These are estimates to show scale, not predictions or guaranteed returns.

Privacy

Everything runs in your browser (and on your device in the app). Nothing you enter is sent to a server. See our privacy policy.

Contact

Feedback or corrections? [email protected].