High v Low LH???

Hey guys! So I use several different tracking apps just for comparison’s sake, and two of them are Premom and Femometer. When i enter my OPKs into both apps, they usually give me an LH level estimation within 1 point of each other... BUT Premom says my LH levels are “Low” and Femometer says they’re “High.”

I know ultimately it doesn’t matter because I haven’t ovulated yet, but I’m curious as to what kind of negative line indicates lower and higher levels.

This is my first cycle off of my Mirena IUD going back to using OPKs (used to use digital), and I’m really trying to figure out what to think of these easy@home tests... Are they too light? Should I stop for a few days? Or are the lines dark enough to warrant taking them until I O? Help!