While the app is entirely free to download and use , it requires a paid F1 TV Pro or F1 TV Premium subscription to access live race content.
F1 is aware of MultiViewer for F1. Surprisingly, they have not sent a cease & desist letter. Why? multiviewer for f1 free
You can use MVF1 with a friend’s F1 TV Pro login. F1 TV allows multiple streams simultaneously (usually up to 6 devices). If a friend shares their password, you get the multiviewer experience for free. While the app is entirely free to download
MVF1 authenticates using your login credentials. It pulls the direct HLS streams (the video files) from F1’s servers and displays them in a tiled, customizable window. multiviewer for f1 free