I would like to install a "panic button" on my phone's home screen or lock screen that would send a predefined sms/text message to a selected group of people.
I am NOT looking for a group sms app where you first need to wait for the app to start up, then need to select the group, then type a message, then handle various menus/screens/popups/confirmations to send it.
It should be quick and easy (with hopefully only one or two clicks or swipes) to send the predefined message to a group in a life threatening situation. It should enable me to notify e.g. my neighbours, police, security, family, etc. immediately and simultaneously in a case of emergency.
Is anyone aware of such an app or any way to customized an existing app/feature to get this type of behaviour?