What Can I Sing (WCIS) is a free Android App that allows patrons to find nearby karaoke venues via a geo-location map and request songs on-demand. The App's user interface is simple and easy to navigate, allowing patrons to view the host's songbook and make requests, including key change requests. Patrons can also see a list of their requests and whether the host has accepted or rejected them.

The App eliminates the need for patrons to search for a songbook or wait for one to become available, and hosts can manage their songbooks, venue details, hours of operation, and requests all online. The App also eliminates the need for hosts to collect paper requests, which can often be hard to read in darker environments. Hosts can send notifications to patrons to let them know when it's their turn to sing. Overall, What Can I Sing is a great solution for karaoke enthusiasts looking for an on-demand karaoke request App.