YouTube 's latest iPhone update enables vertical videos to be viewed on iOS without black bars , the Google - owned company said on Twitter . But if you've ever played a vertical video on YouTube, two giant black bars filled most of your screen. The tweak applies to all formats of video , which can be automatically loaded to all iOS smartphones , bringing it in line with Snapchat and Facebook .
YouTube 's latest iPhone update enables vertical videos to be viewed on iOS without black bars , the Google - owned company said on Twitter . The tweak applies to all formats of video , which can be automatically loaded to all iOS smartphones , bringing it in line with Snapchat and Facebook .