Ava Fertility is a free lifestyle app available on Android that helps women increase their chances of pregnancy. The app is designed to work with the Ava bracelet, which is FDA-cleared and CE-certified. It collects physiological data overnight while the user sleeps and syncs with the app in the morning to provide instant results. The app detects the user's five most fertile days with 90% accuracy, tracks temperature, resting pulse rate, sleep, and HRV ratio, and provides insights about the menstrual cycle.

In addition, Ava Fertility helps women discover patterns in their health over time with charts, graphs, and trend analysis, and learn about changes in their body during pregnancy. However, to use Ava Fertility, the user must have a cycle length between 24 and 35 days and purchase the Ava bracelet.