Hey To Do: Calendar,Hashtag

- detail of fuction
- Add hashtags to ToDo (tasks) and collect tasks by hashtag.
- You can add multiple hashtags to ToDo.
- You can manage ToDo’s deadlines on the calendar.
- If you want to be notified on ToDo's deadline, you can easily turn on the notification and you will be notified on that deadline.
- Try adding additional explanations to your work through notes.
- Back up your work and restore it at any time.
- You can change the app theme to the color you want.
- You can edit or delete the hashtag name in Hashtag Management in Settings.