Did I ovulate?

We've been trying now for almost a year and I have only just started using bbt.

I was trying to get my head around it all this month and it's confusing me...can someone help me understand if I have ovulated from my strips and bbt? l

Looking at bbt I thought I ovulated when it dipped on 13th Aug but that's earlier than what the app predicted...just want to make sure I am reading it right. My strips look as if I didn't get a peak this time so I'm just very confused!

Thank you - this community is the best full of supportive women 💕