Almost every Vietnamese app teaches the Northern/Hanoi dialect, but the tones and everyday vocabulary are different enough in the South that it only gets you so far.
Speak Saigon is built Southern-first: real Southern pronunciation audio for every sound, vocab grouped the way locals actually use it, spaced-repetition review, tone drills and games, short stories, and an AI partner that holds real back-and-forth conversations in Southern Vietnamese. Free to start, no credit card.
