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Powerplay Systems Inc. is a Toronto-based venture studio founded by John House that builds AI-native consumer apps, SaaS platforms, and marketplaces. The studio's portfolio includes CallScreenr (AI call screening and fraud protection), DockZero (zero-fee boat marketplace), Linchpin (dependency migration tool), Recevity (smart receipt and ownership tracking), and Provisio (contract timeline management). Operating with a ship-weekly, profitability-first approach, Powerplay focuses on solving problems around trust, fraud, and operational friction.