Ava Women?

I’ve been flooded with ads for Ava Women but can’t seem to find reviews outside of their own site.

My hubs is in med school so I had him read the medical journal and their one clinical study seemed kinda like a stretch. Basically: The sample size was very small (less that 100), avg BMI of 21%, and only in Swedish caucasian women.

In the study they only correlated pulse to ovulation (although they track a total of 7 metrics) and had the women using the Clear Blue Advance Digital test to confirm the LH spike, no blood work.

Overall it’s like $250 for this monitor and the study seems iffy?

Has anyone used this or have any experience with it?