Speak Vietnamese from your first lesson.

Say it out loud from day one

Vietnamese has six tones, and a wrong tone changes the word. Chào trains your ear and your voice in every lesson.

• Speaking in every lesson

  Say words and phrases out loud. Trâu listens and shows which syllable and which tone to fix.

• Clear audio

  Every word and sentence has recorded audio, at normal and slow speed.

• Tone gym

  Hear a syllable and pick its tone while Trâu acts out the pitch.

• Your accent

  Learn Northern or Southern Vietnamese. Audio, words like bố and ba, and tone drills follow your choice. Switch any time.

Real life, not textbook

Ten units built around expat life in Vietnam, with practice partners who answer back.

• 10 units for daily life

  Numbers and money, food and drink, getting around, the market, your home, time, family, health and work.

• Who is anh, chị, em?

  The pronoun system, explained: when to say anh, chị, em, cô, chú or bác, and why it matters.

• Stories

  Short stories from everyday moments in Vietnam, with audio and questions as you read.

• Talk with locals

  Role-play with an AI barista, Grab driver, market seller or landlord, and get corrections as you go.

• Explain my answer

  Made a mistake? Trâu tells you why the right answer is right.

• No Vietnamese keyboard needed

  Type the letters, then tap a tone key to mark the word. Chào adds the diacritics for you.

Built like a game, better with friends

A few minutes a day adds up. Chào gives you reasons to come back tomorrow.

• Streaks and quests

  Earn XP and gems, keep your streak, finish daily quests and collect achievements.

• Weekly leagues

  Climb a weekly league with other learners, and see how you rank on a friends leaderboard.

• Nudge a friend

  Add friends by code, see who practised today, and send a nudge to anyone who has not.

• Invite a friend

  Share your invite code. When a new learner uses it, you both get a free week of Premium.

• Widget and reminders

  Keep Trâu and your streak on your home screen, and get a reminder in the evening when your streak is at risk.

• Smart review

  Spaced repetition brings each word back just before you would forget it. Reviews never cost hearts.

What leaves your phone

Chào needs a server for sync, leagues and AI practice. It sends only what those features need.

• Progress sync

  Your progress syncs to our server so it is safe. No account needed: an email sign-in is optional.

• No ads, no trackers

  No advertising, no third-party analytics, and no tracking across other apps.

• Your voice

  Speaking uses your phone’s own speech recognition. Chào never stores or uploads your recordings.

• AI practice

  AI practice sends only the text of that chat. We do not store it, and it is not used to train AI models.

Free to start