Duet Display External Download Turn your mobile device into a responsive second display to boost productivity and multitasking External Download Turn your mobile device into a responsive second display to boost productivity and multitasking Vote (1 votes) Program license Free Developer Duet Inc. Version 0.6.2.0 Works under Android Also available for Mac Vote (1 votes) Developer Duet Inc. Works under Android Android 13.0 Program license Free Version 0.6.2.0 Also available for Mac