Hello everyone. I am hoping someone may have an idea of an application for an aging mother that she can put on her phone to notify her children when something is awry. She is very active and uses her phone often, and she does live alone. She is mentally and physically in good health, but the fear is that if she were to fall or be otherwise unconscious we may not realize quickly enough. We do not want something that she has to actively engage with, because we do not want it to constantly remind her that she is aging. Ideally, this would be a phone app that runs passively in the background (and could check that she is using/moving her phone ), though other suggestions are appreciated!
For example, it could be something that sends a notification when she hasn't moved her phone in 18 hours. The closest we have gotten is the app ManDown, but it requires that she remember to turn the app on periodically and it seems to drain battery quickly.
Thanks in advance!