The hardest part of building with AI isn't the first draft; it's the rewrite. Taking a vibe-coded prototype to a real, production-ready product forces an immediate Choice: do you prompt-and-iterate on a hosted platform, or do you scaffold the repository and own the code? Base44 and Cursor represent these two opposing choices. One wraps your app in a managed black box, while the other puts a professional software engineering IDE in your hands.
This comparison is judged on transition mechanics. If you start with a conversational concept, the first draft is easy. But taking that app into production involves setting up real database relations, configuring secure user permissions, and ensuring you can change a feature without breaking another. This is where the developer environment and the prompt-driven sandbox part ways.