How accurate is the fertile window on this app?

[Mz_Thicc]

I've been using this app for a long time my period seems to be very accurate, but I believe my fertile window is off. Can anyone tell me if they notice the same thing?

[pilotswife12]

This app was always right about my period but it told me I'd ovulate on day 11 when in fact I ovulated on day 15 this month.
I tested with an OPK because I was curious how accurate it was.

[TeamNguyen]

Interesting! I took an OPK for 7 straight days during fertile week and tested negative on every day including my "ovulation day". I bought more tests to keep trying for a positive just to see how accurate the test is

[catwoman276]

Yep, it's not very accurate for me either at the moment but I guess everyone is different. Have been comparing two apps and started using clear blue ovulation kits to test my actual ovulation dates for the past two months. Good luck!

[mcsto]

I don't think it's very accurate. I've been using the app for a few months now and it's been wrong on my ovulation date every time (according to OPK results). It seems to tell me ovulation is happening 2-3 days before it actually does.

[annienarcisa]

I would say it is pretty accurate for me but when I was trying I used two apps and I learned how tell when I was ovulating by paying attention to my vaginal mucus. We got pregnant within the first month of trying so my best advice is to use two apps, Google vaginal mucus and people say it is an old wives tale but elevate those hips.