Basically the application substitutes the necessity of manually setting the ring volume from the device's OS in different locations. The application requires the GPS location to be enabled. To make things easy please enabled the GPS location before to install the application. In order for the application to work it is necessary for it to run in background or foreground. If the application is closed then the user can set the ring volume again from the devices's OS.
The application enables the user to set custom ring volumes for different geographic locations. A default ring volume is also set for the situation when the device is outside of a custom defined location.
No Internet connection is required but the user must allow access to the devices's GPS location. More information can be found in application and in its 'Help' section.