Sound like you
belong here. One phoneme
at a time.
Record your voice, see exactly which sounds slip, and drill them with instant color-coded feedback. Everything saves to your account.
Jump in
A 10-minute session built from your weak spots.
Master the 12 hardest American sounds.
Ship or sheep? Ear first, then mouth.
Real spoken conversation practice.
Drill any word, name, or phrase you need.
Accuracy by sound, streaks, and history.
Speak freely for 45 seconds, then read it back.
Re-drill the exact words you've missed.
The curriculum
Twelve sounds in six levels, in the order the app teaches them. A level is complete when both its sounds are mastered and you have the connected speech to go with them. Nothing is locked — practise any of it, in any order, whenever you like.
Today's Lesson
Auto-built from your weakest sounds. Work top to bottom — about ten minutes.
Phoneme Trainer
The twelve sounds that give learners the most trouble in General American English.
Pronunciation Check
One word per sound, twelve sounds. Listen, then record. Your profile builds as you go.
Minimal Pairs
Two words, one tiny difference. Train your ear, then your mouth.
Ear training
Listen firstPress play, then choose the word you heard.
Speaking practice
Then say itPick a pair, then record yourself saying both words.
Numbers
Numbers are said, not spelled — 1995 is “nineteen ninety-five” and $19.99 is “nineteen ninety-nine”. Each card shows the number and the words underneath. Say the words.
Sentences, Stress & Rhythm
American English is stress-timed: some syllables punch, others shrink. Watch the amber pitch trace while you record — questions should rise, statements should fall.
Tongue Twisters
Shadow the model, then record your own run. Start slow — speed is earned.
Free Talk
Answer the prompt out loud for up to 45 seconds. Then read the transcript — anything transcribed wrong is a likely pronunciation slip. This is how coaches assess real speech.
AI Conversation Partner
Have a real spoken conversation — speak your reply, the AI talks back, and keeps you going. This is the free-form practice BoldVoice doesn't offer.
AI Coach Notes
Your personal coach reads your recent recordings, spots your recurring problems, and writes tailored advice — the kind of pattern analysis a human tutor gives.
Lesson Maker
Type any theme — “job interview”, “ordering coffee”, “the TH sound”, “medical terms” — and get a full custom lesson: words, minimal pairs, and sentences, all drillable. Endless, personalized content.
Vocabulary Builder
Learn new words for any topic — each with its meaning and a real sentence using it. Then practise saying that sentence. This is the one that teaches you vocabulary, rather than drilling words you already have.
Grammar Lab
Pick a grammar point and get the rule explained, exercises that check you understood it, and sentences to say. The exercises are marked here on the server — this is the one part of the app that asks you to answer rather than to speak.
Reading Lab
Pick a topic and get a passage to read, questions that check you understood it, and sentences from it to say aloud. The questions are marked here on the server; the passage stays on screen while you answer them.
Listening Lab
Pick a topic and get something to listen to — a two-person conversation or a short lecture — with questions that check you followed it. There is no transcript on screen while you answer: you are meant to hear it, not read it. It appears afterwards, along with a few lines to say aloud.
Writing Lab
Set yourself a writing exercise — a topic to write about, or one flawed sentence to fix. You write it in My Writing, and a coach reads it back: what worked, then a few specific corrections in your own words.
Type or Paste Anything
Drill any word or sentence — or paste a whole paragraph, article, or your own speech, and we'll break it into sentence-by-sentence drills. Turn any text into practice.
Commonly Mispronounced Words
The words that trip up nearly everyone — silent letters, sneaky stress, and spellings that lie. Pick a category.
Syllable Stress Tapper
Every English word has one syllable that punches harder. Listen, then tap the rhythm — big tap on the STRESSED syllable. Then say it and check.
Speak Along
Speak at the same time as the recording, not after it. You are matching the rhythm and which words get stretched — not every sound.
Listen once, then speak along with it.
Listening Speed Ladder
Understanding fast native speech is half the battle. Each sentence plays slow → normal → fast. Climb the ladder as your ear sharpens.
My Vocabulary
Words you saved from the Vocabulary Builder, and when each one is next due. Say a word well and it comes back later; miss it and it comes back sooner.
My Grammar
The grammar topics you saved. Each one has the rule, exercises that mark themselves, and sentences to practise saying.
My Reading
The passages you saved. Each one keeps its questions and the sentences you can read aloud, and remembers how far you got.
TOEFL Practice
The four sections, in their real shapes and under their real clocks. Each sitting sets its own passages and questions when you start it, so you can sit the same section again and get a fresh, unanswered set. You get counts where there is an answer key and a coach's notes where there is not — never a score, and never a guess at what you would get on the day.
My Listening
The listening sets you saved. Play each one as many times as you like, answer the questions, and the transcript unlocks when you are done.
My Writing
Everything you have written, and what was said about it. Drafts save as you go; a piece you hand in is kept exactly as it was, because the feedback is about those words.
Your Review Deck
Words you missed this session gather here automatically — your personal weak spots, ready to re-drill. Spaced practice beats cramming.
IPA Reference Chart
Every General American sound. Tap a symbol to hear it in a word.
Vowels
Consonants
Your Progress
Saved to your account — pick up where you left off on any day.
Sounds to work on
measuredAccuracy by sound
weakest firstLast 20 scores
Recent recordings
Settings
Your account, your data, and the way out.
Account
Your name
Optional. If you would like a certificate issued in your name later on, this is the name it will carry. Leave it blank and nothing changes — your username is never shown to anyone else either way. You can change or clear it whenever you like.
First language
Optional. We use this to choose which sounds to start you on when you have not recorded much yet — it only changes the order drills appear in, never what you can reach, and your own recordings take over as soon as you have a few. Change it or clear it whenever you like.
Your data
Everything this app holds about you, in two formats. The JSON is the portable copy — it is what an export can be read back from. The report is for reading and for paper.
Certificates
Delete my account
This deletes your account and everything attached to it: every recording score, the per-sound detail behind them, your plan grants, your profile and any certificates you have been issued. It happens immediately and it cannot be undone — there is no restore, and support cannot bring it back.
If you have shared a certificate with anyone, its verification link stops working when the account goes.
There is no way to clear your practice history and keep the account. Your level and badges are worked out from your recordings rather than stored, so erasing them would silently un-earn everything you have reached. If you want a copy first, export your data above.