Learn Japanese at your own pace

Koi Kanji Widget

Keep the kanji you are studying on your home screen and come back to them whenever you have a moment. Check readings and meanings, then practise in the app.

Closed betaExplore features

Kanji of the day日にち · ひ · nichisun · day

Made for daily study

A place to come back to, even when you only have five minutes.

Koi brings the essentials together so kanji stay present in your routine, from your home screen to a short practice session.

Always in sight

The widget places a kanji on your home screen, giving you small chances to meet it again throughout the day.

Everything in context

Check readings, meanings, vocabulary and stroke order without jumping between tools.

At your pace

Practise, save favourites and create personal collections around what you want to reinforce.

Meet the app

A clear journey from start to finish.

Explore Koi’s main features, from the home screen and widget to your progress and personal collections.

Today4-day streak

学

01 · Home and exercises

Start with what matters today.

The home screen brings together your daily summary, recommended review and quick access to short practice sessions.

02 · Widget

Your kanji, always visible.

Choose the size, content, filters and refresh frequency to make the widget fit your home screen.

Kanji listN5

一二三

03 · List

Explore without the clutter.

Search and filter by JLPT level to see readings, meanings and your progress for every kanji at a glance.

ProgressThis month

72%

04 · Progress

See how far you have come.

Review your recent practice and progress by level so you know what to maintain and what deserves more attention.

My Kanji12 saved

海花語

05 · My Kanji

Shape your own learning path.

Save favourites and create personal collections so the kanji you want to reinforce are always easy to find.

Coming soon

Koi Kanji Widget is in closed beta.

The app will keep improving during this stage. When the test becomes available, this page will include a direct link to Google Play.

Support and legal

Koi Kanji Widget information

Need help or want to report an issue? Write to us and Aonami Studio will get back to you.