How accurate is glow??

Glow says I’m supposed to be ovulating right now, but I’ve got hardly and CM and it’s a mix between watery and lotiony. I know you have to track your BBT and stuff to truly know when you’re ovulating, but I was just wondering how useful glow can be in <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a>? Is this cycle late/our if sync or is Glow often wrong for you girls too? 😊