Your workday becomes
your English textbook.
Write a short journal, and AI finds the expressions you were reaching for — then puts you straight into practice. And your practice partner isn't a tutor: it's your actual manager or client. Every session earns fries 🍟, and your burger grows.
Write it → find it → say it.
Not the textbook's order — the order your own day hands you. One loop takes 5 to 10 minutes.
What happened today, in English. Where the words run out, switch to your own language — that's the point.
Four or five phrases that would have said what you meant — each with alternatives and how formal they sound.
reply once you've checked
circle back more casualfollow up with you more formal
already fully booked with work
A single-session chat where AI builds a flow that naturally calls for those phrases. Corrections come on their own 📝 line.
Rehearse with the person you'll actually face tomorrow.
Practising with "an English teacher" doesn't help in the meeting. In business mode you register your manager, teammate or client, and the AI plays them — the way they actually talk.
Name, relationship, how they talk, what sets them off. Register once, and every later session opens as that person.
"Negotiating a price increase." "Reporting a delay." "First kickoff call." Type in tomorrow's meeting and the session starts there.
Drop in an agenda or the key points of a proposal and the conversation takes them into account. Nothing you paste is stored — it's used for that session only.
Counterpart details are as confidential as your journal. Database-level access control means nobody else can read them — including us.
Situation: Telling her in your 1-on-1 that the release will be two weeks late
Learn and it grows. Skip and it goes moldy.
Journals and conversation practice earn fries 🍟, and Burgertchi levels up. Miss too many days and the freshness gauge drops — it's an honest burger.
When the freshness gauge hits zero, you get mold and flies. It's never fatal — you can always start again from a fresh bun. A burger takes the hit so you have a reason to come back.
Everything aimed at actually using it.
Beginners build sentences by arranging chips; intermediate and advanced type freely. Pick the load that fits today.
get back to you / circle back / follow up. Same meaning — but which one can you send to your boss? We show how formal each one lands.
push back is "push" + "back", so it means moving something later. You learn how the meaning is built, not just the gloss.
One tap jumps to clips where your phrase is spoken for real. Proof it isn't textbook-only English.
Switch the language of meanings, translations and corrections whenever you like.
Send a theme — "pushing back on price" — and get a custom expression set and practice session on the spot.
Less training program, more help with tomorrow's meeting.
More work needs English every year, and yet the training never sticks. A burger your people want to keep alive turns it into five minutes a day.
Members enter the code you hand out and they're in. Everyone can be writing their first journal within 15 minutes.
Journal text and registered counterparts belong to the writer alone — guaranteed at the database access-control level.
Admins get statistics only: streaks, journal counts, expressions learned. Enough to spot who has stalled.
Annual per-seat licences, with quotes and bank-transfer invoicing available.
First 7 days: everything, free.
Try every feature for 7 days with no credit card required. If it's not for you, just walk away — nothing to cancel.
Monthly plan
- AI journal analysis (every day)
- AI conversation practice sessions
- Business-mode role-play
- Natural voice pronunciation playback
- Phrasebook, calendar & focus marks
Yearly plan
- Everything in the monthly plan
- Pay once, save all year
- No monthly renewals to think about
The first 100 members are founders.
The first 100 paid members who back Burgertchi get a numbered founding-member badge. It shows on your app home screen as 🏅 Founding member #12 — and it's never given out again after the first 100.
- First access to new features — you hear about releases before anyone else
- A direct line to the makers — your feedback goes straight into development
- Invites to community meetups — we're planning ways for people who work in English to meet
* Perks may change or grow over time. Sign-ups close once we reach 100 members.
Even on the free plan, your phrasebook, calendar, and learning history stay viewable forever. Only new journal analysis and conversation practice go on pause — subscribe whenever you feel like continuing.
USD amounts are approximate — your card is charged in Japanese yen (¥980 / ¥9,800), so the exact total depends on your card issuer's exchange rate. Payments are processed securely by Stripe (we never store your card details).
Cancel anytime from inside the app. For teams and companies, see For teams.
Put it on your home screen and make it a habit.
Burgertchi is a web app (PWA) — nothing to install from a store. Add it to your home screen and it opens full-screen in one tap. No App Store, no Google Play.
📲 Takes about 10 seconds. Pick your device below.
- Open this site in Safari
- Tap the share button □↑ at the bottom
- Choose "Add to Home Screen"
- Tap "Add" at the top right 🍔
- Open this site in Chrome
- Tap the ⋮ menu at the top right
- Choose "Install app" (or Add to Home screen)
- Tap "Install" 🍔
- Open this site in Chrome / Edge
- Click the ⊕ install icon in the address bar
- Click "Install" 🍔
Frequently asked questions
How much does it cost? Can I try it free?
How is this different from studying for a test?
Can anyone see the work details I put into business mode?
What if I can barely write in English yet?
Which English will I learn?
Do I have to install anything?
Do you have other languages?
Start with one line about today.
From a plain bun to a Super Deluxe Burger.