Full Crossplay Support Comes to PS4 Starting With 'Fortnite

The open beta allows crossplay, progression, and commerce across the PS4, Android, iOS, Nintendo Switch, Xbox One, PC, and Mac platforms. 

OcUK Ultimate Crossplay Guide - Overclockers UK

Sony Relents and Opens the PS4 for Fortnite Cross-Platform Play

PlayStation chief on why Sony took so long to enable console cross-play

Fortnite' Crossplay: How to Enable Switch, PS4, XBox, PC and Mobile Cross Platform Play [UPDATED]

When is Fortnite Android going to be released, will it be on Google Play and does it have crossplay with PS4, Switch or Xbox One?

Sony Gets With the Times, Adds PS4 Cross-Play Support for 'Fortnite

Cross-platform play - Wikipedia

How to play Fortnite cross-platform with Nintendo Switch, iOS, Android, PS4, Mac, PC, and Xbox

Fortnite Mobile UPDATE - PS4 and Xbox One cross-play BOOST, Gaming, Entertainment

Sony enables Fortnite cross-play between PS4, Xbox One and Nintendo Switch

Sony's walled garden cracks open: Cross-console play comes to PS4

PS4 Cross-Play Confirmed; Fortnite Beta Is Live - GameSpot

Fortnite Battle Royale coming to mobile, cross-play and cross-progression between PS4, PC, Mac, iOS and Android : r/PS4

Fortnite PS4 Is Getting Cross-Play, Beta Starts Today

Sony Finally Enables Fortnite Cross Play Support On PlayStation 4: Open Beta Begins Now