One day

"One day" is a task management and schedule sharing app for individuals, families, and teams. From creating to-do lists to automating recurring tasks and managing schedules on a calendar, it simplifies and streamlines your daily tasks. Try it with a free one-month trial.

■ Task Management & To-Do List
Easily create, edit, and delete tasks. Flexible management is possible, including start/end dates, priority, and category classification. Add subtasks (steps) to track progress in detail.

■ Automating Recurring Tasks
Supports various recurring patterns, such as daily, weekly, monthly, and yearly. Once you set up a regular routine, it will automatically be reflected in your schedule. Detailed customization of days and weeks is also possible.

■ Schedule Management with a Calendar
View your task schedule at a glance with three views: month, week, and day. It also supports Japanese public holidays.

■ Group Sharing & Collaboration
Create groups with family, friends, and team members using invitation codes. Share tasks, check progress together, and collaborate.

■ Notifications & Reminders
Receive reminders at the start time of your tasks. Choose the timing that suits you best, such as 5 minutes, 15 minutes, 30 minutes, 1 hour, or 1 day in advance.

■ Customization
Switch between light and dark themes and set background images to personalize the look.

■ Recommended for:
・Those who want to manage to-dos and tasks simply and concisely
・Those who want to share schedules with family or partners
・Those who want to automate recurring routines
・Those who want to manage tasks alongside their calendar app