8 hours development completed the most boring social application yo it's fire

This should be the most boring application in the history of--yo, but it has unexpectedly received 1 million dollars in financing. With this application, you can add your address book buddy and send Yo to say hello, and if a friend greets you, you will receive a push yo with a voice. This is the full function of the application. It's yo, and then it's gone. Is that this application, since the April Fool's Day, has accumulated 50,000 active users, the user has sent more than 4 million times Yo. It is said that Yo "this: robot voice is actually the voice of its developer Or Albert (Or Arbel) himself." The app, which took 8 hours to complete, was rejected by Apple when it was first submitted to the store, citing the belief that the application was still being developed. At first Albert received the suggestion to develop a one-click Notification application for use as a personal assistant. Arles began to have no interest in it, thinking that not many people needed it, but now it's on fire. For yo "Why can get investment, or Arbel said Yo is a multi-functional context communication mode", can contain different meanings in different scenes, thus stimulating the user's pure desire to use. Anyway use it does not need friend verification, as long as you enter a person's user name, you can Yo him.