"Bylgja" is a application for setting a 'Airplane mode' and 'Wi-Fi, Bluetooth' ON/OFF.
"Bylgja" can create 'shortcuts' to set those mode on your home screen.
'Open dialog for set Airplane mode, Wi-Fi and Bluetooth',
'Set those mode ON/OFF directly',
'Toggle those mode between ON and OFF',
'Open dialog for set GPS ON/OFF'.