TapNotify by Splinkware
TapNotify simplifies sending a short, canned message to a preferred contact that also includes a map of your current location, for example: “I’ve arrived safely” or “I’m running late.”. The TapNotify buttons can be customized by the user, and the message can be sent as a txt or email. Setup is easy and once setup it is a single tap to notify a friend or family member.
Developer Website: http://www.splinkware.com