OnCall Defender Medical Alert (available via iTunes) is an iPhone app that features 3G connection to a 24-hour security monitoring service. Via a subscription service, you can use your iPhone to send an emergency notification to the service after which local law enforcement or EMT services, depending on the type of alarm, will be dispatched.
The advantage over using 911 is that the monitoring service automatically receives GPS localization of your whereabouts and that you can cancel the emergency call within 15 seconds. The service costs $16.99 a month or $9.99 with a one-year subscription. Read more »
*This blog post was originally published at iMedicalApps*