Ava is a medical device and measures multiple physiological parameters to detect your body's signals to recognize when you're entering your fertile window in real-time.
In conjunction with the Ava app, five physiological parameters are displayed in the app as charts so that you can see the patterns and changes throughout your cycle.
Ava gives you fertile window and ovulation predictions based on your physiological data, giving you more fertile days than other devices, and more personal physiological information than other apps, to plan around conception.