From the official site:
With the PlayStation®App installed on your mobile device, you can:
· See what your friends are playing, compare trophies, and view your profile or recent activity.
· Chat with your friends; receive notifications, game alerts, and invitations, and then use your mobile device as an on-screen keyboard for your PS4™ system.
· Browse PlayStation®Store, pick-up the latest hit games and add-ons, and then push them to your PS4™ system so they are ready when you get home.
· Take advantage of the in-app second-screen features, when available, for greater challenges and control.
· Quickly access PlayStation® system guides, manuals, and PlayStation.Blog.
Latest Version : 1.70.51
Notes for this version:
Adds support for Playroom new sharing features
Find download links for Playstation App below.
(Some additional versions are pending review)
In this section you will find additional links related to this application
We didn't reference any discussion on our forums about this homebrew yet, but you can