Clue Detective Notepad Downloads & RevenueClue Detective Notepad · App Store

Turn your detective notepad digital. This deduction assistant is the ultimate companion for classic murder-mystery board games — track every suggestion, log what you learn, and let the app calculate the odds of who did it, with what, and where.

Compatible with Cluedo / Clue-style deduction board games.

HOW IT WORKS
Instead of scribbling X's on a paper pad, you log each suggestion and reveal as it happens. The app's deduction engine analyzes every possible card distribution still consistent with what you know and shows you the probability of each card being in each player's hand, the community pile, or the solution envelope. The more you log, the sharper the odds become — until the answer is certain.

KEY FEATURES
• Smart deduction engine — automatically cascades logical conclusions so nothing is missed
• Probability grid — see the likelihood of every card in every location at a glance
• Tap any cell — get a plain-English explanation of exactly how that conclusion was reached
• Suggestion & fact logging — record who suggested what and who showed a card
• Contradiction warnings — get alerted when an entry conflicts with what's already known
• Custom games — supports the classic set or your own custom suspects, weapons, and rooms
• Community/shared card piles — full support for variants that deal cards face-up
• Save & load — keep multiple games in progress with auto-save
• Export logs — share a full game log as text or a formatted PDF
• Interactive tutorial — learn the app in minutes
• Light & dark mode, portrait & landscape

Whether you're a casual player who wants a little help or a hardcore sleuth who wants to win every game, this is the notepad that thinks with you.

Not affiliated with, endorsed by, or sponsored by Hasbro. "Clue" and "Cluedo" are trademarks of their respective owners; referenced only to describe compatibility.