Are you looking for an App with which you can feel safe when you're out alone? then this Application is exactly what you are looking for!

If you feel insecure, just open GoSafe and keep the button titled "Hold when frightened" pressed. The momend you let go, a Countdown of 20 seconds will start. If you don't abort the Alarm within the timespan, your location will be sent to your selected contacts via SMS. If wanted, the location can also be sent repeteadly.
If you abort the Alarm, before the Countdown ends, nothing will happen and nobody will know you used GoSafe.