Cluesheet Companion is a utility application designed to function as a private, logic-assisted controller for the digital version of the board game Cluedo on Nintendo Switch and Steam. It enables local multiplayer by allowing up to six players to use their smartphones as personal, hidden clue sheets, effectively digitizing the traditional pen-and-paper experience. The app is targeted at families and social groups who own the primary game on console or PC and seek a seamless, "big screen" multiplayer experience. Its primary differentiator is the innovative logic-assisted virtual clue sheet, which automates note-taking and deduction. Despite a strong conceptual value proposition, the app currently faces severe technical hurdles that undermine its core utility.