Chainday: Habit Tracker

Chainday is a simple, beautiful habit tracker that helps you build good habits and keep them. Check off a habit with one tap, watch your streak grow day after day, and don't break the chain.

Whether you want a morning routine, more reading, daily water, regular workouts or less screen time, Chainday turns small daily actions into progress you can see.

ONE TAP A DAY
• Check in with a single tap from the Today screen
• Track any habit your way: yes/no, counts (like 8 glasses of water) or minutes (like 20 minutes of reading)
• Daily habits, chosen weekdays, or a goal of X times per week
• Organize your day into morning, afternoon and evening routines
• Missed logging yesterday? Go back through the week and fill it in
• Start in seconds with ready-made habit ideas

STREAKS THAT FORGIVE
Life happens. Chainday keeps you motivated instead of punishing one bad day.
• Rest days: plan a break without losing your streak
• Streak freeze: allow one missed day a week
• Streak Shields: repair a recently broken streak
• Vacation mode: pause every habit while you travel

SEE YOUR PROGRESS
• Current and best streak for every habit
• Completion rates for the last 7, 30 and 365 days
• Monthly calendar and an activity heatmap
• Your strongest and toughest days of the week
• A weekly summary of how your chains grew

REMINDERS THAT RESPECT YOU
• Set one or more reminders for each habit, at the times you choose
• Reminders skip habits you've already done
• One notification per reminder, never spam

HOME SCREEN WIDGETS
• See today's habits right on your home screen
• Check off habits from the widget without opening the app
• A compact widget for today's progress and your top streak

STAY MOTIVATED
• Earn awards for streaks, check-ins and perfect days
• Celebrate a perfect day when every habit is done
• A short encouraging message every day

PRIVATE BY DESIGN
• No account and no sign-up
• Works offline
• Your habits and notes stay on your phone
• Export your history to CSV, or back up and restore a file you control

BEAUTIFUL AND FAST
• Clean, modern design with light and dark mode
• 8 accent colors and 48 habit icons
• Built to open fast and check in faster

Chainday is a habit tracker, routine planner and goal tracker in one simple app. Start small, stay consistent, and build the habits you want, one day at a time.

Chainday is free and supported by ads. It is a general self-improvement tool and does not provide medical advice.

Recent changes:
• Done and Snooze buttons right on your reminders
• New: built-in timer for minute-based habits
• Nudge again if a habit isn't done yet
• Send a test reminder from Settings
• Reminders now arrive closer to their time
• Clear alert when notifications are turned off