The PlayStation App is a PlayStation focused mobile application for the iOS andAndroid mobile operating systems developed by Sony Computer Entertainment. Version 1.0 of the application was released on January 11, 2011 in Australia and Europe, and released in North America on November 14, 2013, before the launch of the PlayStation 4 in that region. Currently, the application can be used on devices running iOS 6 and above or Android 4.0 and above.
The PlayStation App can be used as a second screen for the PlayStation 4, provide connectivity features, access to the PlayStation Store, view manuals and guides, send and receive messages between PlayStation 3, PlayStation 4, andPlayStation Vita systems, compare trophies, view recent activities, maintain friends lists, and keep up to date with news from the PlayStation Blog. The PlayStation App does not have any gaming functionality.

Functions
The application allows users to check their PlayStation Network trophies, friends lists, recent activities, and use second-screen and connectivity features with the PlayStation 4. It also provides a news feed regarding news involving the PlayStation 4, PlayStation Vita, and PlayStation 3 gaming systems, in addition to being able to read post comments on the PlayStation Blog. The application also allows users to watch any videos embedded in the news posts via the application on their mobile device. Users are also able to share news or products on theirFacebook, Twitter or email accounts.



Πηγή: Wikipedia

STAY IN THE GAME
Take your PlayStation experience with you on your mobile device with the new PlayStationApp! Always be ready to game with features that keep you connected to your gaming friends and the games you love to play. Push games from PlayStationStore to your PS4™ system and be ready to game at home.
With the PlayStationApp 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 PlayStationStore, 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.
A Sony Entertainment Network account and PS4™ system are required to use all of this application's features.