To use Ava Fertility, you need to download the Ava Fertility app from the App Store™ or Google Play™ store and create an account. Follow the on-screen instructions to create your account.
If you ever want to delete your Ava Fertility account, navigate to the "More" section in the app, tap on "My Profile" and scroll all the way down to the bottom of the screen. There, tap "Delete account".
Please note that deleting your account means erasing all data you ever recorded with Ava Fertility and that this data will never be retrievable.