I'm on OS X 10.9.4, with iTunes 11.3.1. I got a new phone and am trying to get it set up on a new mac. Previous to this, I already sync'd the phone to an older mac (to get all my old apps and data from the backup), which my previous phone was sync'd to. That appeared to go fine.
Now I'm trying to sync the phone to a newer mac, because the old one is very slow. When I tried to sync, I got the message that 'this phone is already sync'd on another computer, do you want to erase and sync from this one?" I said yes. It appeared to sync. But I know I need several updates, and I can't figure out where to do that.
When I look at the Apps tab in iTunes, with the phone selected, it displays the apps on a list on the left, and the home screens on the right. The only button next to each app is 'Remove'.