Every conversation becomes something you keep.
Meetings and small talk become one live transcript — Japanese, English, and Chinese. The words you barely caught today become the words you own next time.
Your first hour is free. No subscription.
Catch it. Study it.
Meet it again.
Not a textbook’s invented sentences — the language you actually encountered, the way real people said it. Hiroi doesn’t stop at translating.
After the conversation, keep what mattered with a tap.
Every card carries an AI explanation and the moment it came from — the word always remembers its context.
Reviews arrive right before you’d forget.
Saved phrases enter a spaced-repetition deck (FSRS). And when a studied phrase comes up again in real life, Hiroi quietly tells you.
End the day with a card made from your own words.
A phrase you caught today, hand-drawn into a daily card. Collect them, share them.
Your meetings don’t disappear.
Transcripts and summaries live on as a private library — the work you already do becomes your vocabulary.
Quiet competence.
Built for every day — not for demos.
Fast as speech.
Streaming recognition puts words on screen the moment they’re spoken — the conversation never waits.
Everything in one app.
Translator, meeting minutes, flashcards, and the daily card — no juggling four apps.
Design that stays out of the way.
During the meeting you just talk. The app can wait until after.
Hand-drawn, card by card.
Your phrases get their own illustrations — beautiful enough to collect.
No expiry. No subscription.
The hours you buy stay yours. Top up only when you need to.
Private by default.
Nothing recorded, nothing stored on our servers — details below.
See it in 30 seconds.
A real conversation becoming captions — then cards.
Your meetings stay on your device.
Audio is never recordedIt’s understood as it streams, then let go.
Never stored on our serversTranscripts, phrases, and your deck are stored only on this device.
Sign in with AppleStart without even sharing your email.
Start with a free hour.
Top up hours as you need them. Purchased hours never expire. No subscription.
30 extra illustrations ¥480. Your first purchase permanently unlocks full history and an unlimited deck. Prices shown are from the Japanese App Store; your local store price applies.
Your voice shapes Hiroi.
Bugs & enquiries: hello@hiroi.app
