About Deadman
Historically, the «dead man switch» is a system which triggers an emergency shutdown when a locomotive driver stops to perform a periodic task.
Deadman triggers sending of messages when the application is not reactivated after a customizable time.
For more details: https://www.auvercloud.com/deadman.html
by K####:
This is a very underrated service for people to have access to and it's good to see an app for it available.