A video that shows the Instagram app in 2011 has gone viral on TikTok and it’s got everyone feeling nostalgic. It was shared by a user called Nostalgia Birds, who shows off ancient apps which he still has downloaded on old iPhones and iPods. Instagram app in 2011In the viral video which has had more than 8.7 million views, he opens up the Instagram app on a white iPod Touch 4, which was released in September 2010. The social media app has its original logo, a brown vintage camera with a rainbow square in the corner. After clicking on the icon, the sign in screen appears, which is covered in sq…