When you are under debris or in emergency situations, it determines your location by making a whistle sound and informs you whether you are safe by sending an SMS to the numbers you have previously specified.
If you lock the screen when the whistle is rung in the application, the whistle will continue to run. In this way, battery can be saved.
Our application does not contain advertising. and is not made for the purpose of gaining any financial income or collecting data, but for the sake of humanity. I would be happy if you make your comments and criticisms in this context.