Can I log symptoms or medications for a past date?

Yes, you can log data for past dates. When performing a check-in, tap on the date at the top of each card with the clock icon and adjusting the date. You can also change the dates of all cards by tapping the calendar icon on the top right of each Tracker screen where you can select the desired past date. Once changed, all cards that were not checked off previously will have their dates changed within that Tracker. This feature is useful if you forgot to log information on the day it occurred.