Ovulation Questions

Hello! I'm new to Glow. I have been using Ovia to track my period and avoid pregnancy for years we recently started TTC so I downloaded Glow as well. I make sure to log the same info to each app everyday. Ovia says I am currently Ovulating while Glow said I was last week. Which app do you all feel is more accurate? I skipped checking CM over the weekend and now I wish I had. Any advice is helpful. TIA