Cost: Free for 30 days; subscriptions start at $10 for one month
When you open the app, Flo's simple and bright design will immediately tell you where you are in your cycle, but that's just the beginning of what it has to offer. You'll also find information about ovulation and fertility, how your cycle might affect your mood, and any patterns in your symptoms. You can even import data from your Fitbit or Health app.
If privacy is a concern, you'll love that you can use your fingerprint or face to unlock Flo. And while the app allows you to connect with others who may be experiencing similar issues, the chat rooms are anonymous, with zero tolerance for racism, sexism, homophobia, transphobia, or any other hate speech.