Has anyone ever heard of a device, app or software that sends out an email or text when you die or don’t respond in time to disable it? It is called a dead man's switch (or a digital dead man's switch). Any you use or know of people using that seem good?

Has anyone ever heard of a device, app or software that sends out an email or text when you die or don’t respond in time to disable it? It is called a dead man's switch (or a digital dead man's switch). Any you use or know of people using that seem good?