Finally remember
Japanese.
Real sentences, visual memory, and natural Japanese audio designed for retention.
Built for learners who recognize Japanese, but struggle to recall it later.
$5.99 · one-time purchase · iOS
- Every word anchored to an image and a real sentence
- Natural audio you can play, replay, and shadow
- One purchase. No subscription. Yours forever.
Why Kairou works.
Recognition is easy. Recall is the hard part. Every part of Kairou is built to move words into long-term memory.
Every word is anchored to its own illustration, so it has something to stick to.
You learn each word inside a real Japanese sentence, not on a bare flashcard.
Natural audio on every sentence. Listen, replay, and shadow until it feels like yours.
Spaced repetition brings each word back right before you would have forgotten it.
Four ways to study. One app.
Five minutes before bed. An hour on the train. A full session at your desk. A mode for each.
See the picture and the word. Tap to see the reading and meaning.
See the word inside a real Japanese sentence.
Audio first. Hear a sentence, then shadow it. Hands-free practice for the train or a walk.
Multiple choice for a quick check. The cards you’re about to forget come back first.
Also inside.
- Grammar without grinding. You hear conjugation, polite forms, and casual speech across thousands of real sentences. After enough listening, they settle into memory on their own.
- Kanji breakdown. See every radical, every reading, and how each character is built from its parts.
- Spaced repetition. Words you’re about to forget come back more often. Words you know come back less.
- Listening on your terms. Choose the audio pattern, the speed, and how long the pauses run between sentences.
One purchase. Yours forever.
Language learning shouldn’t feel like a bill you forgot to cancel.
- No subscription
- No streak pressure
- No ads
- Works offline
3,000+ words. $5.99. Yours forever.
Less than a cup of coffee. JLPT N5 through N3. Every word anchored to a picture, a sentence, and audio — built to stay in your memory. One purchase. No subscription.