Wake up into Japanese.
Okiru turns a daily alarm into the Japanese habit you’ve been meaning to build.
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HOW IT WORKS
Your alarm rings.
Japanese begins.
When your alarm goes off, you answer a few flashcards correctly before you can dismiss it — turning a habit you already have into the habit you’re trying to build.
SMART REVIEW
Words, right before they slip away.
Spaced repetition quietly brings back the words you’re most likely to forget — right when they matter.
ALL JLPT LEVELS
From N5 to N1, at your pace.
Built-in vocabulary is organized by difficulty, so every step feels like the right next step.
Add the words that belong to your life.
Custom flashcards let you build alongside the built-in vocabulary — names, places, phrases, whatever you want to remember.
See what’s learned.
Know what’s next.
Clear progress tracking shows what’s due, what’s mastered, and how your practice is adding up.
Everywhere you wake up.
Works completely offline. Your study habit lives on your device, ready whenever your day starts.
Tomorrow morning starts here.
Download Okiru and turn your alarm into a Japanese practice session.
Download on the App Store
© 2026 Langston Hill · Made for curious Japanese learners.