Tinder! The app that gives single people some hope, one right swipe at a time. Some have argued that the app isn't that great, while others complain that there are slim pickings out there. Whatever be the case, Tinder has taken the world by storm and revolutionised the dating cum 'hookup' world.

The algorithm of the feature takes into account what type of photos the user is likely to swipe right to. If a photo that features your pet is likely to get more right swipes, it will automatically become your primary photo. However, if there is a particular user who swipes left for such photos, he/she will be shown your second best click.

Tinder CEO, Sean Rad said, "First impressions matter. With Smart Photos, we're empowering users to put their best foot forward when forming new connections by implementing a sophisticated algorithm. This is our latest innovation to improve profiles which ultimately increase matches."