Lost my phone

This is an awesome rule where you can find your phone by just sending a message "Where are you galaxy" (customizable) and there will play a sound on your phone (which you have to select).

Battery 20% left

Your phone will shut off wifi, data connections, bluetooth and will put your screen on the battery save mode, so your battery doesn't die quick.

Start navigation when gps is online

Automatically start an offline app when your GPS is turned on. (requiers the app below)