In Wanikani I just learned yoi or ii
But In Bunpro I Learn ii for good
so which one is correct
良い is the kanji form of いい, and can be read both ways. They’re both correct, though conjugation of いい in any form will use the よ and not the い reading.
Click show inflections on the left hand side here for info on these conjugations: よい - Jisho.org
I tend to use よい when I’m emphasising the word as a part of a sentence, and いい in any other occasion. I’m not saying that’s grammatically correct, it just feels more natural to me personally.
よい is the origin of いい . いい is wrong, but isnt consideret as wrong.
Both are correct! They just have different use cases.
both are good