Mockitt is a full-featured design, prototyping and collaboration tool with a free version. It's got intuitive tools for prototyping, flowcharting, mind mapping and real-time collaboration. AI tools like AI prototype generation and magic fill can speed up your design work. The service also handles web and mobile apps, and has a lot of tutorials and a learning center, so it's good for a broad range of people.
FlutterFlow is another powerful option, especially for developers who want to build apps with Firebase integration and a visual drag-and-drop interface. It's got a free tier and several paid options, including Standard, Pro, Teams and Enterprise plans. Features like a UI builder with more than 80 Flutter widgets, real-time collaboration and publishing to app stores, web or custom domains make it a good option for projects big and small.
Create is a different breed of tool that lets you create components, sites and prototypes by describing them in natural language, which then is translated into code through AI interfaces. It's got a free plan with 20 projects, unlimited iterations and collaborators, and also has Pro, Business and Enterprise plans with more features. That makes it a good option for people who want to build internal tools, websites or prototypes without having to know how to code.