Duo - Habit Tracker

A calm habit tracker for small daily routines, gentle reminders, and private check-ins that stay on your device.

Duo is a calm habit tracker for the small routines you want to keep. Create daily, weekly, monthly, or yearly loops. See only what is due today, check in with a quiet hold gesture, and watch your rhythm build over time. It can also used as important date tracker. duo is designed to feel light, private, and easy to return to. No account is required. No server sync is used. Your routines, check-ins, reminders, and notes stay on your device. What you can do with duo:

• Create repeating routines for daily, weekly, monthly, or yearly rhythms
• See a focused Today view with only the loops that matter now
• Check in with a simple hold interaction
• Track current streaks, longest streaks, and total check-ins
• View a 365-day heatmap of your progress
• Add private notes to past check-ins
• Set local reminders at the time you choose
• Switch between light and dark appearance

duo is built for people who want consistency without pressure. It helps you keep small promises, one check-in at a time.