A fall detector and a panic button are common for personal safety systems. And inactivity monitoring is one to enhance the possibilities of unobtrusive monitoring. Your parents of senior age, or your loved-ones living alone won't be happy with too many phone calls or software constantly sharing their location. That's why an app with an inactivity monitoring feature may be your best choice. It alerts an emergency contact only in case of the phone is inactive longer than a pre-determined time. And GPS coordinates are also sent only in case of possible danger. 
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