Install the application on your child, teenagers or girl friend mobile device then type your email address which you want to receive notification of sms at the first app launching.
The application will be hidden and no icon is displayed but it will track all sms messages automatically.
Guide: download and install the application, then at the first launching, type your email address and touch at button Track. The application will be close and start to track automatically. If you want to change the email address, uninstall the application and re-download to setup.