Some of our friends have a (volunteer, but expert) project to provide cheap and simple medical 911 systems to Third World countries. They plan to begin with Haiti and Latin America.
Beacon: 9-1-1 where there is none
Here's their recent press release.
It's a good cause. Roll them a coin if you can, and tell friends who might be interested. It's not an app, it's a phone feature. God bless those who put their time, brains, and energy into such positive and inventive pursuits.
Few of us in the First World have any idea what it's like out there. And still people in America complain about medical care. They always will. Prosperity and the world's best medical care have turned us into babies.