Pi is a new digital currency being developed by a group of Stanford PhDs. For a limited time, you can join the beta to earn Pi and help grow the network. To join Pi, follow this link https://minepi.com/dunsky and use my username (dunsky) as your invitation code.
Interface is sucks as it is still in beta but let's give it a try, why not? You just have to install it and press "Mine" once in 24 hours. No resources of your phone are used to mine so your battery won't drain.