Glow VS Ovia?

I've been using the Ovia app to help my predict my fertile window and I have been unsuccessful for 6 months using it we were trying for 2 months before I started using Ovia so 8 months all together of TTC. I'm new to glow I'm just wondering what other women think who have used Ovia. I've also used fertility friend I didn't care for the app so what do you ladies think about the Ovia app VS glow?