Can someone help me .. OPKs

Melissa

I need some input on opk testing..

What is more accurate ??

Clearblue digital advanced OPKs or cheapie strips??

The clearblue keeps giving me an empty circle (low fertility)

But the strips keep giving me “high” when I input it into the app.. (the lines are the same color)

Been TTC for a little over a year & this is my first time trying clearblue digital OPKs. I’ve always used the little cheapie strips from amazon.