None of Their Business - How to Choose a Private Cycle Tracking App

One of the easiest and most practical ways to track your menstruation and related health indicators is a cycle tracking app (also known as period trackers or fertility tracking apps). They allow you to keep track of many intimate facts about you such as eating, sleep, mental health, sexual activity, contraceptive methods, and your fertility choices.With all these tracking options, the companies behind the apps know a lot about you, but what do they tell you about how the apps function and what do they do with this data?