I don’t think period trackers can be used for that because schedules and such are supposed to alert you to something. But with period trackers you tell them when something happened. Specifically when the first blood and the last blood appeared. I don’t think any of them give you a message of “expect to feel awful today”.

But maybe they can be used to track natural occuring cycles like when a fast growing plant is ready for harvest maybe.

Edit: I often use Did I take my meds as a flexible scheduler.

Don’t, just don’t, or maybe do. A lot of those apps phone home with your period info to help marketers and the secret police infer when you might be pregnant. So if you’re going to use such an app at all, use it for anything except actual period tracking. That should at least confuse them.

I’m not familiar with how they work or what kinds of data they track and return.

Uh, they track menstrual cycles. So unless you have a thing that runs on a roughly 21-35 day cycle, there’s not much dual use to get from a period tracking app.

Are you trying to think of an alternative use for when cops try to use the app data to prosecute a woman when she miscarries? There are probably some plants that need to be watered ~monthly. Like a cactus or succulent.

Lunar cycle

Monthly hot tub maintenance. ;)