It"s very simple and easy to use!You can easily add one task to another!Displays the progress of the tasks!You can add categorized icons in each task!It crosses out the completed tasks so you'll know which tasks are completed by a glance!Assort tasks/Display by the category/mark for important tasks!Select the color Green or Pink!Functions1 Add new tasks(memo/add icon/categorize/deadline/time/alarm).2 Assort by date/by category/by alphabet.3 Display by category.4 Display all the completed tasks.5 Edit tasks(mark for the important tasks/share/delete/copy).6 Help (Move to Speed Do description page of our website).7 Menu button (of your phone)「Setting」: Display on the status bar (Launch Speed Do from the status bar.)/Select colors etc...「Password」: Password setting.「Backup」: Import SD card/Export SD card/Export Cloud( Back up the data to Gmail/Drive/Dropbox/Evernote)「Recovery」: Recover to previous data etc...「Exit」: Exit the app.8 Expired tasks'll be displayed with a red square border.9 Cross out the completed tasks.