A walk through
See inside first.
Every screen, before anything is asked of you. No account, no email, nothing to dismiss.
The day
It opens on the day you are actually in.
One number, the season it belongs to, and a line about what this part of your cycle tends to ask of you. No streaks, no score, nothing to catch up on.

A sample month, drawn from invented days. Your own pages start empty and fill as you tend them.
One payment, and it is yours.
$37 once, not every month. Thirty days to change your mind, no questions asked. Your data is yours: export it or delete it whenever you like, and deleting means gone.