I tested Editorial, Textastic, 1Writer and ByWord as the closest companions:
To spare you the screenshots i made:
-
Editorial works fantastic and flawless!
It just wraps the text and the tabs correctly when in portrait mode, as you would expect.
Perfect! -
Textastic is a bit buggy
It wraps, but only at the columns where it would wrap in landscape mode - so you need to scroll to see the whole line. Not good! -
1Writer is as buggy as Drafts
Don´t see much difference. -
ByWord is so buggy, that i cannot spare you the screenshots
But the wrapping itself works fine.
Only the TABs are just wrong.