Early access beta · Vietnamese tone practice
Vietnamese tone practice with clearer next steps.
Pre-launch · No spam · Early testers shape the practice deck.
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Our Philosophy
Vietnamese tone practice for learners who know the word but still get misunderstood. Hear a reference target, record, run a recording check before tone feedback, get one correction, and retry — one phrase at a time. Practice alone, no audience.
The problem
Vietnamese pronunciation is not just vocabulary. Tone height, contour, timing, and pitch shape change whether locals understand you — even when your vocabulary is correct.
You can read the tone marks and still produce a shape Vietnamese ears do not recognize.
Locals may smile and nod even when they did not understand. You need clearer signal than politeness.
Flashcards and chatbots rarely show your pitch contour or give one correction cue to retry.
Why this is different
Vocabulary apps, transcription tools, and chatbot tutors solve different problems. Đúng Chưa? is built for tone practice without fake feedback.
Not ASR. Not a chatbot tutor. Speech recognition can transcribe words while missing the tone movement locals hear. Đúng Chưa? focuses on tone practice — and stays honest when it cannot judge.
Honesty promise
Recording check before tone feedback. If your recording is too noisy, clipped, or unstable, Đúng Chưa? tells you to retry — no fake feedback instead of pretending you passed or failed.
The practice trace is a reference to help you see movement. It is not marketed as perfect ground truth.
MVP scope
Early builds target a reasonably quiet practice space. We do not claim café or street robustness yet — noisy audio may fail the recording check.
Product preview
See how Đúng Chưa? turns one phrase into one focused practice cue. No microphone needed for this preview.
A familiar order where the tone shape can change what someone hears.
A simple preview of the one-cue retry loop.
The example attempt drops too early. Try keeping the tone steadier before the final movement.
You see one mismatch, then one focused retry cue.
This preview does not record audio. Early testing uses recording checks before tone feedback and works best in a quiet room.
After quiet practice
Tone practice is for repetition first — one phrase until your tone stabilizes in a quiet room. Later, you take that phrase into real life: ordering coffee, asking directions, speaking to a local.
We do not promise instant street validation or noisy-environment scoring. Clearer tone shape makes being understood more likely — that is the goal.
Early access beta
Pre-launch only. One waitlist — no spam. Early testers help shape the practice deck.
Voice recording is used for pronunciation analysis. Early test versions may store attempts for debugging and quality review only with clear consent.
We'll reach out when early testing opens. Want to help us shape the initial practice deck? Tell us a bit about your struggles:
FAQ
Đúng Chưa? is Vietnamese tone practice without fake feedback — for learners who know the word but still get misunderstood when speaking.
Listen to a reference target, record your attempt, run a recording check, receive one tone correction if the audio is clear enough, and retry the same phrase.
No. It is not a chatbot tutor or ASR app. If the recording check fails, the app refuses to give fake feedback. AI may help explain a correction — it does not pass or fail your tone.
Not as its primary job. It focuses on making the words you already know easier to say clearly. It is not a complete Vietnamese course.
The early version uses a controlled practice deck and expands carefully as reference baselines expand. It does not claim full support for every Vietnamese dialect.
Early practice works best somewhere reasonably quiet. Noisy environments remain a recording-quality risk, and the app should not be framed as working anywhere.
It is for Vietnamese learners who want clearer tone production and practical pronunciation feedback between lessons or self-study sessions.
Đúng Chưa? is pre-launch. Join the early access beta waitlist for updates when testing opens.
It is Vietnamese tone practice with a recording check first — one phrase, one correction — not vocabulary drills, transcription, or chatbot conversation.
One correction means each attempt focuses on one clear tone change — such as timing or tone movement — so you can retry without a wall of feedback.