A couple days ago, I was playing around with a friend's iPhone and their Facebook app. I've noticed something strange about it... My friend and I both have the same iPhone model (iPhone 6) with both Facebook and Messenger installed. But for some reason, her Facebook's UI is slightly different than mine, as seen in the photo below. As far as I know, there's no settings to get my Facebook to look like her's. What's strange is that we're even on the same version of Facebook. Does anyone have the UI with the "Post" tab and the messenger icon in the top bar? If so, how did you manage to get that version of Facebook. Thanks!