This is a free application based on the general situation of everybody. Where you want to change the mobile from silent mode to general mode or vibrate, vice versa when mobile is not there with you.
Consider a situation, where you kept your mobile silent mode and forgot where you placed the mobile in your room. At that situation even you do call to that mobile you can't find where it is because it is in silent mode. So if this app is there in your mobile you can easily convert your profile silent to ringing mode by sending a simple message to your mobile by that you can find where it is.
You can enable/disable the application as per your requirement through the settings options.
The simple message is nothing but profile name('SILENT', 'GENERAL', 'VIBRATE'). If you send it from another mobile to your mobile it will change the profile to your preferred profile type. Such as General or Silent or Vibrate.
For more details you can refer help option in the application