AVA BRACELET

Jenika
Has anyone used the Ava Bracelet to <a href="https://play.google.com/store/apps/details?id=com.glow.android">track fertility</a>? We have been TTC for almost a year. Everything checks out with the doctor as not infertile so I'm wondering if it may help. 
If you've used it, did it work? And how long did it take you to conceive? Prior and then with it.