Do Oura Ring & Natural Cycles sync both ways?

I got the Oura Ring primarily to use with NC. I love it but I’m wondering if the data from NC syncs the other direction to the Oura app? I don’t know why I’m confused… I don’t want to have to enter period data etc. into both apps but I also don’t like the Oura app giving incorrect predictions/data because it doesn’t know the correct details of my cycle.