@fabrao I think it's a fine thing to do a small app in it that doesn't do much. I'd be hesitant to do a large app in RN at all.

(I am a professional iOS developer who does "real native" though all the time, and possibly have a different definition of "large app" than you)

The mobile landscape requires a lot of platform specific behaviors that RN does not do well enough for people who do not know them, so they are only a shortcut for a very specific level of quality

see the Apple HIG and the Google Material Design documents then play around. You'll see what I mean

Yeah i totally agree with you @mj_langford.

"large app" is just general speaking, yes, indeed there are a lot of specific details on layouts, the behaviour and specific action of every pixel of the screen