An app to help you find more of what you like

This would be similar to the algorithms that find movies and TV shows you might like on Netflix, but for apps themselves. For example, if you've been using Facebook and Snapchat and Instagram, it would try to find other social media apps you might find interesting. <br><br>This is of course a common concept now, but I see it as being best realized more as a niche service dedicated to this particular end, which could also include the ability for friends to recommend apps to you.