'I am busy!' is a great and simple app which allows you to program your device to send auto response message to your friends while you are at work or school. You can customize response to all of your contacts. You can also set ringtone and vibration to people who are important to you.
![Busy Signal - Perfect Spot [Visualizer] screenshot 3](https://i.ytimg.com/vi/Js0MsclcQp8/mqdefault.jpg)
9Apps 4.9
