From Playstation:
Today we’re launching a PlayStation Communities app on iOS and Android, making it easy to stay in touch with your fellow PS4 gamers while away from the console.
PlayStation Communities are places where you can find players who have similar interests and preferences.
Within a Community, you can join parties and launch into games with other Community members, or talk about your shared interests. For instance, if you’re having trouble finding players to tackle Destiny’s newest raid, Wrath of the Machine, a Destiny community may help you fill out your fireteam.
In the app, you can check out community profiles, view a list of communities you’re a member of, and see who else is in your community.
You can also discover and join new communities directly from the app, which provides recommendations based on the games you’ve played and highlights which communities are trending.
The app’s streamlined design makes it easy to post text and images on the community wall. You can also choose to receive push notifications to stay-up-to-date on posts and replies.