Correction
For immigrants learning real spoken English
Sound like the speakers you already listen to
Shadow real speakers line by line. See exactly where your delivery differs from theirs.
Not pronunciation drills. Real delivery practice with real conversations.
Get notified at launch
Takes 10 seconds. We'll email you when ShadowSpeak goes live.
This is what practice looks like
Shadowing guide
Readable sentence
I mean, this is the part that's really working.
Imean,thisisthepartthat'sreallyworking.
Reference You Stress
Speaker-relative match0.82
Your delivery is 82% similar to how this speaker said this exact line.
Let the pitch fall later on "working."Right now the sentence closes too early, so the line sounds flatter and less speaker-like.
The friction you already know
You speak English every day. People still ask you to repeat.
You know English. The problem is delivery — the stress, rhythm, and pitch patterns that real speakers use without thinking. Most tools never show you these.
The waste of replaying podcasts 10 seconds at a time
You open a podcast to learn real English, then end up fighting the player because it was never built for sentence-level practice.
Podcasts are great input. But input alone does not fix output.
You can listen to hundreds of hours and still not close the gap between how you speak and how they speak. Without a way to compare your delivery to theirs line by line, listening stays passive.
“I moved to the US at 30. My grammar was perfect. After 8 years, people still asked me to repeat myself.”
I tried every pronunciation app and YouTube course available. They graded my sounds, but people still couldn't follow me. The problem was never pronunciation — it was delivery: the stress, rhythm, and pitch patterns that native speakers use without thinking.
Linguistics research confirmed it. Studies show that stress, pausing, and pitch predict comprehensibility more strongly than pronunciation accuracy — accounting for half of how listeners judge whether you're easy to understand. No app was measuring these.
Podcasts felt closest to what I needed. Real people, real speech, topics I cared about. But they weren't built for practice. So I built the tool that was missing.
— Seonghoon, founder of ShadowSpeak
Why ShadowSpeak exists
You can only fix what you can see
ShadowSpeak shows you exactly where your delivery is different from the speaker — one line, one gap, one better attempt at a time.
Four axes we measure:
- Chunking
- Where you pause between phrases
- Stress
- Which words you emphasize
- Pitch
- How your voice rises and falls
- Pronunciation
- How closely sounds match
Your current line
Speaker target
Your gap, visualized
Different stress. Different pauses. Different pitch shape.Not a score that says "wrong" — a mirror that shows exactly where you differ from the speaker you chose.How it works
Three steps from listening to speaking
The flow stays simple on purpose: choose a line you care about, shadow it, and get exact feedback before the next attempt so momentum stays intact.
- 01
Choose a podcast you already care about
Start with an episode you actually want to understand instead of forced study material.
- 02
Replay any sentence instantly, at any speed
Slow it down to 0.7x or speed it up. Built for learning, not endless tapping to go back 10 seconds.
- 03
See where your delivery is different
Check pronunciation, stress, chunking, and pitch differences in one focused screen.
Ready to see what you have been missing?
Get notified at launchCommon questions
Before you sign up
What podcasts can I practice with?
Any podcast you already listen to. Tell us your favorite when you sign up and we will prioritize onboarding that content first.
What does a 0.82 speaker match mean?
It means your delivery is 82% similar to how the original speaker said that exact line — measured across stress, chunking, pitch, and pronunciation. Most learners start around 0.65 and reach 0.85+ within a few sessions.
Is this a pronunciation app?
No. Pronunciation is only one of four axes we measure. Research shows stress, pausing, and pitch predict comprehensibility more strongly than pronunciation accuracy — yet those are the areas most apps ignore.
Do I need to lose my accent?
Never. Your accent is part of who you are. ShadowSpeak helps you improve delivery — the rhythm and emphasis patterns that make you easier to understand — without changing your identity.
Launch waitlist
Be first in line when ShadowSpeak launches
We're building ShadowSpeak for iOS. Leave your email and we'll let you know the moment it's ready to try.