Looking for a platform that can design like Framer/Supernova but also handles the backend

I love the visual design platforms Framer X, Supernova Studio, TeleportHQ, Handoff.design however, they don't seem to utilise or deal with data?

For example, I can design/develop a native or web app in Adalo AND I can work on the backend within it as well, however, the design interface is rather horrid and the complexity of what can be done is pretty narrow.

Is there a platform out there that can design beautifully as well as handle and work with data?