Stop or remove

• Stop the emails: sidebar, bell icon, untick the daily email, Save.
• Stop the calendar: sidebar, calendar icon, Stop syncing. The calendar stays in Google Calendar; delete it there if you no longer want it.
• Remove the script's access: at myaccount.google.com/permissions, remove Tidyfield Grant Tracker. Your tabs and formulas stay.
• Free your license: sidebar, License, Remove key.
• Delete everything: delete the spreadsheet.