We want to be sure that you get the maximum value out of Ava Fertility and that you are using the newest features. The first time that you open the Ava Fertility app after you update it, you will receive a pop-up about what's new in the app.
In addition, you can always see what is new if you visit the App Store or the Google Play Store, search for Ava Fertility and consult the “What’s new” section."