Syncing glow apps

I don't understand why glow has a record of my account I can use to sign into other glow apps but can't sync information (interests, day of period, etc) when needed. I used eve and had to sign up with nurture when I got pregnant. I had to enter everything again! Then I gave birth and downloaded glow baby. Now I've downloaded glow, and don't see the difference between that and eve.....and I can't sync both apps. I have to re enter everything🤦🏻‍♀️.

Interestingly, these apps were advertised in-app.... why don't you make life easy? 😫