I don't no what <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> to go by ?ive been doing one for so long and it's the .app ,,no I'm going whith glow and this one say this month I'm do for my AF.... On the 14th I'm like so confused about the whole app thingy. Both apps have the same start and finish days of my AF of last month ?? But no I have to start dates !!!!???? Hummmm  how could this be??? Any one plz!?