Wallchart Habit Tracker

Wallchart is a wall calendar you mark once a day, sitting on your Home Screen. Tap a habit on the widget and it's logged. The app doesn't open. There are no notifications and no account to make. The widget comes in three sizes, holding three habits, four, or ten. Every row is a control: yes/no habits take a checkmark, and counters count up, so "water, 5 of 8" is one tap from 6. Open the app when you want to change something or look at what you've built. Each habit keeps a calendar showing the days you marked, your current streak, your longest one, and how often you've managed it over the past month. Tap any past day to fix it. Everything stays on your iPhone. There's no account, no analytics, and no server of mine holding your data. If you run your own server, there's an optional setting to sync there instead; it points wherever you tell it, and does nothing until you fill it in.