Find the crosses hidden in the colours — and unbuild them in reverse.
Create online quizzes and custom trivia games for parties, celebrations, and team events
Stage
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Pricing model
Freemium
Freemium
Pricing
Free with ads; premium one-time purchase removes advertising and unlocks larger boards.
Free: Build and test unlimited quizzes with up to 5 live players or 5 self-paced submissions. Premium: $19 per quiz to unlock for up to 200 players with no subscription.
Key features
Reverse-order puzzle solving with visual stack unwinding
Budget-based scoring system with vessel metaphor
Two-tap control interface with visual feedback
Difficulty selection with variable cross counts
Musical scale progression during gameplay
Hint system with cross visualization
Six language interface support
Interactive help tour
Adjustable board size for varied challenge
Ready-made question templates with AI generation
Customizable themes, colors, and typography
Live and self-paced play modes
No account or app required to join
Presenter mode for TV or projector display
Real-time leaderboards and scoring
Create from phone, unlimited questions
Password protection for self-paced quizzes
Image support with Premium plan
What makes it different
Plays the game's deal sequence backwards as sound when solving
One-time purchase with no subscriptions or additional in-app purchases
Score system uses visual vessel metaphor instead of climbing counter
Clean minimalist UI with readable typography and strong UX
Pay once per quiz with no subscription or recurring fees
Test unlimited quizzes for free with up to 5 players
Works on any device with a browser; no app download needed
Host from your phone while hosting or presenting anywhere
AI-generated starter questions to build quizzes faster
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