Roland GO:LIVECAST Live Streaming Audio and Video Studio for Smartphones and Tablets - Manual (Page 27)

to
beginning
Live Broadcasting
Now let’s try actually live broadcasting.
MEMO
You can also record the video content on your smartphone (p. 37).
Specifying the Screen Orientation
In this document, we explain the various screens of the GO:LIVECAST
app in vertical orientation (portrait mode), but you can also use and
broadcast the GO:LIVECAST app in horizontal orientation (landscape
mode). The live broadcast video is also broadcast as a vertical screen
when using portrait mode or as a horizontal screen when using
landscape mode.
Portrait mode Landscape mode
iOS only
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