Quick question:

I want to build an app that works well on Web browser and, when opening from a mobile device, it goes to the browser but it behaves like an almost native mobile app. I guess these are called Progressive Web Apps?

If so, which no-code tool is the one I should use to build a PWA?

For now, I want my app to allow users to sign up, create/delete events, join events, and chat with the people that join a specific event.

Does anyone know what tool can allow me to build something like that?

Thanks a lot!