Do you seriously think a web based, AIM bot from 2003 is "exactly the same app" as a mobile, iOS, push notification based app of 2016? Your takeaway from this shouldn't be thinking you would have succeeded if you had the drive and kept working on it. There are probably at least tens of thousands of other people who tried solving the same problem, counting myself. I honestly have no idea how this took off because I've seen so many apps that tried to do the same thing and never took off, but these guys did. So I give them credit for the execution.