aTimeTool is a time tool app for iPhone. It can auto on/off iPhone Airplane mode, Wi-Fi, Edge, 3G, Location, SSH, Bluetooth, Power and iPod as preset, the settings can be circled by week. This can effectively save the battery life. It also can auto send sms at pre-defined time, support group send, can be circles by week. 1.5 version add auto launch app at pre-defined time, can be circles by week. One of the app you mush have.