Family Tree vs Family Search

I'm sure this is a very simple question, but is Family Tree the mobile version of Family Search? If so, can you do everything in Family Tree that you do in Family Search? and I add names, etc., to one, does it automatically show in the other?

"The FamilySearch Tree app makes it easy to add to, edit, or share your own family’s history anywhere you can take a phone or tablet. Since the app syncs with the FamilySearch website, changes or additions you make are available on any device.

https://play.google.com/store/apps/deta ... bile&hl=en