However, it costs quite a lot ($70/month), and I heard the Dart code it generates is not easily extendable.
In the early stages of a startup, it’s way more important to iterate quickly and not worry about scalability, so I’m wondering if anyone has successfully used no-code tools and is willing to share experiences with them!
If you know how to code, coding is fastest these days, especially with a framework. Code is shorthand for communicating with a machine, after all.
But for anything novel and complex no-code tools simply don't suffice, you can start with them for an MVP or example app but you'll very quickly have to move to coding it up fully custom(in my experience atleast).
When you go from no-code -> MVP you will likely have to throw away most of the no-code version and rebuild from scratch, so it is a question of how far can no-code get you and does it make sense for your use case?
So, it depends, what are you building?