I got tired of managing habit trackers in Google Sheets—monthly copying, broken formulas, and lost data. Existing apps were too complex or expensive. BuildHabit gives you spreadsheet-style clarity in a simple web app: - 35-day calendar view - One-click tracking - Automatic streaks & analytics - Mobile responsive - Free forever Built in 3 days based on my own frustration. Perfect for people who love spreadsheets but hate maintaining them.