The standard phone book app in our phones are positively archaic compared to Humin. This app lets you look up contacts not just by name, but by when you met them, where, who they're friends with and more. So the next time you're looking for that person you met at your friend Tom's party last month but can't recall the name of, all you have to do is ask Humin, "friends with Tom" or "met last month." Humin uses your phone book, Facebook, Gmail and other accounts to pull contact information. The app also guesses who you might be looking for based on where you are, what time of day it is and other factors.