In order to make this app work you need to create a Config class with this: package com.emergency.button; public class Config { static String secret = "your secret code here"; } So that way the webserver knows it's your app sending the messages. What's New ============= 2012-03 Email address validation. 2012-01-26 Beautiful UX Redesign by Derek Keeler - derekfordesign@gmail.com Added a new email sending server. Coming soon: multiple email/sms recipients! -------- 2011-11-01 Improved widget graphics. Fixed a bug with orientation changes while sending emergency messages. Fixed a rare bug when sending SMS's failed. Maximum wait for location increased from 20 to 40 seconds.