When you sign up for a Day One account, you are assigned a User ID. This can be helpful when troubleshooting issues with our support team. Here is how to locate the User ID:
iOS
Open Day One > Settings > tap your name at the top > User ID
Android
Open Day One > Settings > Account > Day One User ID
Mac
Click Day One > Settings (in the file menu) > Sync > User ID
Web
Sign in to the Web app (beta) at https://dayone.me/settings. If the settings menu does not appear automatically, click Settings below the list of journals on the left sidebar.
Look for Day One ID.
