just bought 2015 legacy with Navigation system. Want to add apps to system. I was told I needed smart phone to install the apps. I have a flip phone. My question, can I install apps using my home computer using some kind of link? Or just forget it.

I have the 2015 Legacy Premium, but I don't have the navigation system.  It has the same Starlink system, though (http://www.subaru.com/engineering/starlink.html).   The apps work in conjunction with your phone, so when I launch Pandora or Aha radio on my dash, it actually opens the app on my phone (and uses my data) through the smartphone.  They aren't standalone apps because the car by itself has no way to connect to the network to stream content.