Question: Can you suggest a platform that allows me to build responsive web and mobile apps simultaneously?

For building responsive web and mobile apps at the same time, FlutterFlow is a great option. The platform lets developers build modern apps with Firebase integration, API support and a visual drag-and-drop interface. It includes a UI builder with 80+ Flutter widgets, 170 pre-built elements and built-in logic and linking. It supports real-time collaboration and publishing to app stores, web or custom domains, making it a good option for small and large projects and teams.

Another contender is Mendix, a low-code platform that uses AI to automate development and deployment. Mendix has a visual IDE, one-click cloud deployment, security and data management. It's good for a broad range of roles and industries, offering a good way to build and deploy responsive, cross-platform apps.

Backendless is another full-featured low-code app builder. It's got a visual UI builder, codeless logic and direct API integration for easy data integration. The service offers responsive apps for web and mobile, with real-time database support and streamlined user management. It's got flexible deployment options and integrates with lots of third-party services, making it a good option for app development.

Last, you could look at AppMaster, a no-code service that generates AI-coded components for web and native mobile apps. It's got a drag-and-drop interface for creating data models and business processes, so it's good for both technical and nontechnical people. AppMaster offers one-click publishing to its own cloud or other platforms, and is designed to cut development time and costs by a factor of 10.