Skip to content
Inku
Calm Japanese flashcards

Learn Japanese.And make it stick.

Inku helps you remember kana, vocabulary, and useful phrases with ready-made cards, clear audio, and calm spaced repetition.

Inku showing a Japanese flashcard review of すし, sushi
2,701
vocabulary cards
436
useful phrases
6,000+
audio clips
N5-N1
JLPT vocabulary

Inside Inku

The whole study loop.Already in your pocket.

Start with a ready-made path, save what you discover, and see your Japanese grow without building a study system first.

Daily review

Learn Japanese.

Focused cards, clear audio, and a review stack that knows when to return.
Inku review screen showing the Japanese word すし

Full library

Find your next word.

Browse the card library, save what matters, and keep useful Japanese close.
Inku library showing Japanese vocabulary and saved cards

Useful practice

Study real life.

Food, travel, greetings, shopping, commuting, and more are ready to practice.
Inku topic decks for food, travel, greetings, shopping, commuting, and numbers

Kana

Read the basics.

Work through hiragana and katakana one clear row at a time.
Inku hiragana chart with character progress

Kanji

Build character by character.

Short lessons and focused practice make kanji feel finite.
Inku kanji lessons and practice screen

Saved cards

Keep words you meet.

Create a personal flashcard and bring it back into your review flow.
An Inku custom flashcard showing ねこ, neko, cat

JLPT vocabulary

Move from N5 to N1.

A clear path from beginner vocabulary to advanced Japanese.
Inku JLPT vocabulary levels from N5 through N1

Progress

See what is sticking.

Review history, mastery, and streaks show the work adding up.
Inku progress screen showing review history and mastery

A calmer study rhythm

Less time managing cards.More time remembering them.

Open Inku and your next step is already clear. Study a little, stop when you are done, and come back when the cards are ready.

01Choose

Start with what matters.

Learn kana, work through JLPT vocabulary, or pick a practical deck for food, travel, and daily life.

02Review

Give each card your full attention.

See the Japanese first, listen to clear audio, then reveal the answer when you are ready.

03Remember

Return at the right moment.

Hard cards come back sooner. Easy cards wait longer. Your review stays focused without streak pressure.

Inku showing a focused Japanese flashcard review

Inside the real app

Japanese for the life you want to live.

Build your foundation with kana, move through JLPT vocabulary, and keep practical words for food, travel, shopping, and everyday conversations close at hand.

Inku showing Japanese study decks for food, travel, greetings, shopping, commuting, and numbers

Designed to stay out of your way

Everything you need. Nothing noisy.

No points to chase. No noisy map. No account wall before your first card. Just a focused place to learn and remember.

Ready from the first card

Kana, JLPT vocabulary, useful phrases, and 6,000 audio clips are already organized for you.

Review that adapts

Hard cards return sooner and easy cards wait longer, without exposing the scheduling machinery.

Private by default

No account and no ad profile. Your learning progress stays on your device.

Good to know

Answers before you download.

Do I need an account?

No. Inku does not ask for your email or require a learning account. Your progress stays on your device.

What level of Japanese does Inku cover?

Inku covers kana, 2,701 vocabulary cards across JLPT N5 through N1 and topic decks, plus 436 phrases in three packs. It is built for steady study from beginner foundations through advanced JLPT vocabulary.

Does Inku work offline?

Core reviews, saved progress, and the bundled audio archive live on your device. Purchases, restores, diagnostics, and any missing-audio fallback may use your app store or app services.

What about Android?

Android is in development. We are taking the time to bring the same calm, focused Inku experience to both platforms.