Ambsist is a app to assist the operation of ambu bag. In this app we enter some parameters of ventilation which can be described by doctor once and app provides help about how much and how many times we press the ambu bag for the proper ventilation process. This app is very useful for some critical situations where no ventilators is available such as in ambulance and no doctor is available at same time. It is user interactive app where user can easily use this app and it has great feature like when ambu bag is pressed it can be determined by phone vibration at regular intervals.