'Nine' is an app that takes a page from Tinder in order to help people online make real-world connections. Rather than being strictly for the purposes of dating, Nine has a unique premise that's all about helping Instagram users connect based on mutual interests.
Once logged in via their Instagram account, Nine collects a user's top nine posts. In terms of describing themselves, users express themselves in hashtags in order to find the most relevant matches.
Just like Tinder, users are able to swipe in order to identify which users they'd most like to connect with. If there's a mutual match, the two users will be able to begin chatting to learn more about what else they may have in common.