-psst- NO menstruation app is going to work for them.

You can wish as hard as you want, but objective reality isn’t going to change your chromosomes to suit your insanity.

Period tracking apps failing users in basic ways, study finds
Other users complained that the iconography used in the apps assumed that a woman’s sexual partner would be male, failing to account for those in same sex relationships, and also assume all users identify as female, which excludes transgender users or those with non-binary gender identities. (emphasis added-cb)

Seriously. They expect guys in drag to menstruate.

Oh. And yes:

The research was funded by the Intel Science and Technology Center for Pervasive Computing, the University of Washington, the Agency for Healthcare Research and Quality and the National Science Foundation.

That is your tax dollars at work.

If they’ll give me a couple hundred thousand dollars, I’ll tell ’em exactly why period tracking app don’t work for “women” with XY chromosome sets.