That is fucking insane, considering there are a million reasons why someone might not have a period (stress, could just be an irregular person, or literally no reason at all. Humans are not all the same). Or they could simply forget to input data into their calendar one time. Or they could simply decide that they don’t want to use the app any more, then change their mind a few months later. This data would be circumstantial evidence at best, and if anyone is being convicted of a crime based on this data, I am extremely suspicious of the court system in that country/state.

And that’s BEFORE we even talk about how it’s a huge invasion of privacy.

And which governments are doing this?