You can read English docs.
But can you explain a design decision?
You probably don't have a vocabulary problem. You have a structure problem. The conclusion comes last, the acronyms go unexplained, and the trade-offs show up at the end. 60 real engineering scenarios. Ten minutes a day.
The moments
Three moments every non-native engineer knows
Not an English class. Three minutes that happen every week.
"What did your team ship?" You talked for three minutes. They said:
You explained the new async pipeline. Someone asked:
You walked through the billing model. They said:
You don't have a vocabulary problem. You have a structure problem.
How it works
Ten minutes a day, three steps
No free chat. Every lesson is a meeting you might actually have.
Record
60 real scenarios: sprint delivery, incidents, refactors, capacity, canary releases, postmortems. One a day, 90 seconds each.
Get scored
Structure, fluency, clarity, pace. Missed words highlighted. No vague "good job".
Get checked
An AI listener that never saw the task reads only your transcript — and tells you what it understood.
Different from speaking apps
Other apps score your accent.
We score whether your listener understood.
Then you freeze in a review — not because of your th-sound, but because you took 90 seconds to reach the point.
Three acronyms went unexplained, and you never said why this mattered.
- What problem was the speaker solving?
- What was their solution?
- What risk did they mention?
Real screens
Open it and you know what to practice
Screenshots from the iOS app. No mockups.
Pricing
$5.99 a month. First 7 days free.
After that, monthly, yearly, or one-time. Cancel anytime.
$34.99/year, $89.99 lifetime. Final pricing on the App Store.
- 60 real engineering scenarios, bundled offline
- Word-level scoring with missed words highlighted
- Four-dimension feedback + comprehension check
- No account. Progress stays on your device.
FAQ
Questions
When can I download it?
iOS is built and going through App Store review. Leave your email and we'll send the link the day it's live.
How is this different from talking to ChatGPT?
Three things. 60 scenarios, so you don't have to invent prompts. Word-level feedback on what you skipped or mispronounced. And the comprehension check, which tests whether a listener understood you — not whether the model did.
Is this accent training?
No. Accent is cosmetic. This trains structure and clarity: leading with the conclusion, explaining acronyms, naming the trade-off. That's what makes people understand you in a review.
Do I need to be in China to use it?
No. It's built for engineers anywhere who work in English. The lessons are in English; the app runs in English or Chinese.
Is my recording private?
Transcription and scoring happen on device. Recordings stay in the app's sandbox (up to 40 files) and are deleted with the app. Nothing is sent to a third party.
Is there an Android version?
Not yet. iOS first. Leave your email and mention Android if you want it — that's how the roadmap gets decided.
Launch list
Leave your email. We'll tell you when it's live.
Launch notification and one progress update. No marketing emails. First 100 people get an early discount.
You're on the list.
We'll email you the day it goes live.