You already speak. Now it counts.
Tonchi turns your everyday AI conversations into a living curriculum. It captures the words you reach for, remembers the mistakes you actually make, and brings both back at exactly the right moment.
Works in any MCP client — Claude, ChatGPT, desktop or mobile. Text and voice.
Bring a word back and it sets a piece. 2 of 7.
Conversation in. Curriculum out.
No lessons, no decks to build, no app to remember to open. The system listens while you talk — and does the librarian's work for you.
Com'è andata la mattinata? Raccontami com'è iniziata.
Ho sentito il campanello e sono… saltato dal letto? Non so se è la parola giusta.
Quasi! Diresti sono balzato dal letto — «balzare» è il salto improvviso, involontario. По-русски: «вскочить», а не просто «прыгнуть».
Ah, balzato! E ieri ho balzato… no — sono balzato in piedi quando ha squillato il telefono.
Session ended · 6 words saved · 2 patterns noted
to leap, to spring · вскочить
È balzato in piedi appena ha sentito il campanello.
Contrast: alzarsi — the neutral “get up”.
Saved from this conversation
Speak, in any client
Open Claude — desktop, mobile, voice — and just talk. The agent teaches the way a good tutor does: correcting what matters, letting the rest flow.
It captures quietly
Words you reached for, mistakes you actually made, gaps you talked your way around — logged in the background, never breaking the conversation.
It comes back to you
Spaced repetition schedules every item for the moment you're about to forget it. What you wanted to say returns before you need it again.
No other app knows this about you.
Every learner has a private map of weaknesses — the auxiliary they keep picking wrong, the preposition their first language keeps suggesting. Tonchi logs the mistakes you actually make in real conversation, groups them into patterns, and steers your next session toward them. Quietly, without announcing the drill.
- A closed grammar taxonomy per language — patterns stay comparable across months
- L1-aware: it expects the mistakes your first language sets you up for
- Weak spots become practice sets, not shame lists
Tonight's session will quietly lean into auxiliaries.
頓知
When the sign forbade crossing the edge of the bridge, the monk Ikkyū walked down the middle. In Japanese, hashi means both “edge” and “bridge” — and tonchi is the improvised wit that finds the way through.
That is the skill this trains: not perfect vocabulary, but the wit to talk your way around the word you don't have yet — and the memory to make sure you have it next time.
Built like infrastructure.
Not like an app of the week.
- Lexical gaps come first
- The word you reached for and didn't have is worth more than one you merely heard. Demanded words jump the review queue.
- FSRS scheduling
- Modern spaced repetition, tuned per item. Reviews arrive the moment before forgetting — never as busywork.
- Trilingual cards
- Gloss in English, feel the nuance in Russian. Cards carry every language you actually think in.
- API-first, portable
- A versioned API on the edge. Claude today, ChatGPT tomorrow, a native voice app later — same memory underneath.
- Passkeys, no passwords
- Sign in with your face or fingerprint. Email code as the universal fallback. Nothing to leak.
- Your data, in Markdown
- One click exports your whole dictionary as Obsidian-ready notes with wikilinks. The vault remains yours.
Speak tonight, review tomorrow.
Your next conversation is already a lesson. Connect Tonchi to Claude in two minutes.
