Glow vs Ovia

Ovia is usually very on point with predicting af especially since I have very regular cycles. Last month I had a chemical. I don’t track ovulation with opk because they’re just too confusing for me. But the two apps have pretty different predictions for my fertile window. According to glow today is my most fertile day and I’m supposed to ovulate tomorow. According to Ovia today is the third day in my fertile window and looks like it’s predicting ovulation for Friday. Cervix is super high like hard to reach high and very soft but cm is more creamy then ewcm. I think I may have ovulated earlier because a few days ago I had a lot of ewcm for a few days.

If you don’t use opk or track with bbt which app do you find more reliable to track O