Aqqua is a no-code marketplace app built using Bubble that connects boat owners with passengers looking to rent boats in Brazil for an affordable price. The app was created by Renato Goncalves, who has 13 years of experience in the boating industry and quit his job to build Aqqua full-time. With over 100 listed boats, Aqqua has become a game-changer in Brazil, solving a problem for both boat owners and rental seekers. The app allows users to view and rent boats, manage listings, and close deals directly through the platform. Renato discovered no-code tools like Bubble while working in the boating industry and used it to build an internal CRM and sales tool, which proved successful. He built Aqqua as a nine-episode series on his YouTube channel and has since achieved significant success with the app, including becoming Brazil's largest boat rental app.