Does anyone know the maximum number of devices that can use this app at one time when Chromecasting it?

When more than one device is using it, does it look like a montage on the screen? Thanks!´╗┐

Post has shared content

Any way to fix orientation? On my Note 3, the image is rotated when I use Chromecast´╗┐

Post has attachment
Photo
Wait while more posts are being loaded