You already speak English well. Invoz makes it undeniable.
Send a voice message. Get scored on 11 dimensions. Know exactly where to improve — no exercises, no lessons, no extra time.
11 research-backed dimensions · Based on 46 peer-reviewed papers · Results in under 30 seconds
Tip: Your /θ/ in 'think' sounds like /s/. Place your tongue between your teeth.
Get your score in 30 seconds
Your accent isn't the problem.
Not knowing what to fix is.
You get asked to repeat yourself
In meetings, on calls, in presentations. Not because your English is wrong — because specific sounds aren’t landing.
You don’t have time for exercises
You already speak English 8 hours a day. The last thing you need is homework at 9 PM.
You can’t measure what you can’t see
Is your accent improving? Getting worse? You have no idea because nobody gives you honest, specific feedback.
“Built by an immigrant engineer who was tired of wondering if his accent was holding him back.”
Three steps. Thirty seconds. Real feedback.
Send a voice message
Open the Telegram bot. Talk about anything — your day, a work topic, a random thought. 3 seconds to 2 minutes.
Get your score in 30 seconds
Invoz analyzes your speech across all 11 dimensions: intelligibility, fluency, prosody, articulation, confidence, grammar, and beyond. You get an Intelligibility Score and specific feedback.
Improve on autopilot
Daily coaching reports. Weekly trends on Sunday. Streaks keep you consistent. Your Intelligibility Score tracks your progress over time — like a fitness tracker for your voice.
Try it right now
Read the prompt aloud. Get scored on 11 speech dimensions instantly.
"The best way to predict the future is to create it yourself."
Read this sentence naturally. We'll score your pronunciation, fluency, and delivery.
Tap to start — then read the prompt aloud
Not just 'good' or 'bad' — scored on 11 dimensions
Every dimension maps to a research-backed skill in spoken English
Based on 46 peer-reviewed papers in spoken English assessment. Not a toy — a real research-backed framework.
Built for professionals who already speak English
Colombian. 4 years in the US. Strong engineer. Self-conscious about accent in meetings. Got passed over for tech lead — feedback was "communication skills."
Native: SpanishPreparing for promotion committee at a top tech company. Knows his accent is a factor but has no data to track improvement.
Native: HindiPreparing for tech interviews. IELTS speaking 6.5, wants 7.5+. No native speaker friends to practice with.
Native: JapaneseStart free. Upgrade when it's working.
No VC pressure. No dark patterns. We grow when you improve.
Pronunciation coaching inside your AI assistant
Invoz is becoming an MCP server. Get pronunciation feedback inside Claude, ChatGPT, Cursor — without leaving your workflow. No separate app. No extra habit. Your AI already analyzes your code. Soon it'll coach your speech too.
Follow @invoz_bot on Telegram(opens in new tab) — we will announce the MCP launch there.