Bubble

Bubble is a visual programming platform for building fully functional web applications without code. It combines a front-end design editor with a backend database, workflow logic, and API integrations. Target users are entrepreneurs and startups looking to build MVPs or complex SaaS products. It uses a freemium model, with paid plans starting at $29/month.

Its high score reflects its unique power to create data-driven, multi-user applications like marketplaces or social networks, offering a level of customization and logic typically requiring full-stack development.