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.