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The story behind StageAI

A coach that affordable, available on 1AM, for 15 minutes to teach me languages in a conversation.

I'm Jingchun — a solo developer in Vietnam. StageAI started as something for myself: I go to language clubs but never quite on schedule, and I wanted a teacher who's there whenever I am, patient enough to listen until I get it right. It worked, so now it's here for you too.

The spark

It started at a language club.

I love language exchanges here in Vietnam — there's nothing quite like practicing with real people in a real room. The only catch is that I'm never quite on time. By the time I show up, the group is three topics deep and the conversation has moved on without me.

What I really wanted was a teacher who'd be there whenever I am — at lunch, at midnight, in the ten quiet minutes between meetings — and who'd patiently listen until I'm actually understood.

"So I built one."
The test

Turns out, it actually worked.

I fed it scripts, tuned the voice models, and practiced the same lines over and over. It caught things I didn't expect — vowels I flattened, words I rushed, little sounds I'd been getting wrong without ever noticing. And it never minded when I repeated a sentence for the thirtieth time.

That's when it clicked: if this helped me, it could help anyone trying to find their voice in a new language or accent.

The build

Built by one person, shipped every week.

I've been building StageAI on my own for the past four years — the voice models, the real-time audio, the coaching logic, right down to the page you're reading now.

Today
Dozens of coaches across accents, languages, and scenarios
From Southern American to Mandarin, from job interviews to noir detectives — a full coaching system, all from one desk.
The process
Solo, and shipping weekly
Every feature is shaped by real sessions — yours and my own.
The start
A curiosity about how people sound
Growing up between languages, I got fascinated by the tiny details that make a voice feel like it belongs somewhere.
The idea

Everyone deserves a teacher who's always there.

Whether you're an actor working a dialect, settling into a new country, or just in love with the sound of a certain accent — practice should be easy to reach and easy to enjoy.

What StageAI is built around:

  • 🕐
    Always available. Your 11 PM session is just as ready as your 11 AM one. No schedules, no waiting.
  • 🫶
    Listens until you're understood. Say a word fifteen times if you need to — it won't flinch, and it won't move on without you.
  • 🌏
    Meets you where you are. Wherever you're learning from, you've always got a room to practice in.
  • 🎭
    Shaped by real practice. Every feature comes from sessions I actually use myself.
Still going

Still building. Still practicing.

I still use my own coaches, and I still hear things in my voice I want to change. That's the fun of it — you never really finish, you just get better at listening.

If you've ever thought "I wish I could sound like ___" — that's exactly where this started. Go give it a try.

Ready to find your voice?

Start with 5 minutes free. No card, no commitment — just pick a coach and start talking.