The details about playing video on full screen and horizontal screen are below.
- OS ver 7,8 : 2015/5 Goocus iOS ver 1.0.0 or above
- OS ver 9 : 2016/3 Goocus iOS ver 1.1.3 or above
* Ver 7,8 is unavailable for playing YouTube.
As for Android, playing video on full/horizontal screen is on the stage of development.