VeeDon't be on any ovulation tracker app OR site or anything that's not pen and paper. It's easy enough.
xbezdick
Daniel Django 
(Akkoma)@xbezdick
I use https://f-droid.org/packages/de.arnowelzel.android.periodical/ which is another app, that stores the data only locally and does not require a login. I recently moved the data to another device, which worked well.
@VeroniqueB99
I use https://f-droid.org/packages/de.arnowelzel.android.periodical/ which is another app, that stores the data only locally and does not require a login. I recently moved the data to another device, which worked well.
@VeroniqueB99
