Was working great at first...
...I loved the aesthetics of this app and the function was amazing. The prediction was bang on, but once I tried to sync Clue to the health app (and sync the previous app I used to track my menstrual cycle) it stopped working. Im so disappointed, as I was really looking forward to using it!!
Ill wait for an update to come out and then try again.
SadeC about
Clue Period Tracker & Calendar, v2.6.2