@indigo @matigo @JeremyCherfas @streakmachine [Edit:] I've made the usual iOS assumption, sorry.
Have any of you tried nvNotes - Note Taking & Writing App by Nicholas Clapp
https://appsto.re/gb/KzZWP.i
It's a while since I bought a new text editor, but after trying pretty-much everything (apart from the one above! :) ) I'm still using Editorial by omz:software
https://appsto.re/gb/UqWkO.i