A founder built a SaaS making $100K a year in profit by helping people track their daily habits. And it's been around since 2013! The app helps people track everything from sleep and exercise to mood, productivity and personal goals. Pretty simple idea with some impressive numbers. > $118K TTM revenue > $100K TTM profit > $105K ARR > 1,000+ customers > 85% profit margins All bootstrapped. More than a decade of building a profitable business around helping people understand their own…