Habit trackers and budgeting apps have always lived apart, and both rely on you being honest with yourself. Maintrace connects them: habits can link to your spending and verify themselves, so a "no-spend day" can't be faked. Instead of journaling, you rate each expense in one tap — necessary, could reduce, regret — and see if the month was worth it. And unlike most finance apps, Maintrace is shared from day one, with one net worth for everyone you invite.