Bubble is a no-code tool that enables users to build web applications visually without code, cutting down development time and costs. It allows for faster iteration and scaling, making it ideal for bootstrapping startups and product ideas. With Bubble's platform, users can create custom, complex web products entirely visually—without code—for a reasonable monthly subscription. While some investors may be skeptical about no-code tools, the benefits of reduced cost, faster iteration, and scalability make Bubble an attractive option for many startups. The company has been profitable for years before raising funding, and its stability is ensured by its controlled growth strategy and public commitment to releasing its code in open source.