If you haven’t already done so, download the Ava Fertility app from the App Store™ or Google Play™ store and set up your account. Click here. Make sure you have your Ava bracelet at the ready.

When you first start using the app, it will ask you a few questions that are necessary for Ava Fertility to function optimally (e.g. regarding your cycle history). Correct answers are important – please make sure you set aside a few minutes to go through these questions carefully. 

Follow the onscreen instructions to pair your Ava bracelet with the app before wearing the bracelet for the first time. Also, make sure that you charge the bracelet for at least 4 hours before its first use and for at least two hours daily, until its LED light turns solid green.

Before bed, attach the Ava bracelet to your non-dominant wrist. The white sensor pod should sit behind the wrist bone, flush to your skin. Tighten the band to a snug fit that doesn’t slide. 

When you open the app in the morning, you’ll see the day’s predicted fertility indication. Tap the “Sync my data” button on the home screen to confirm it.


After syncing, the app displays your fertility indication (low, high or peak fertility). Consistently wearing the bracelet and syncing your data will result in the most accurate fertility indications.