The GoodSAM app alerts trained responders to incidents nearby.
The idea is that the responders can get to the scene of an emergency before the ambulance crews.
For every minute that a cardiac arrest patient doesn’t receive CPR or defibrillation, their chance of survival falls by 10%.
Plymouth beat Liverpool in cup fourth round
Match Report: Plymouth Argyle 1-0 Liverpool
Call for filming of violence to be made illegal
Violence by girls rose last year in Plymouth
Motorcyclist seriously injured in Plymouth crash
Police are appealing for witnesses
Developers will pay more for Dartmoor plans
Fees and charges to rise across the national park
Doubt over benefits of new Dartmoor phone mast
Site visit arranged as locals say new mast not needed
Illegal vapes and cigarettes seized from Devon shop
Police say they are a risk to humans
