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I Built the Japanese App I Wanted After Quitting Noisy Language Apps
I wanted a Japanese app I could open at night without feeling yelled at.
Why I built it
I started with the usual apps. They were good at getting me to come back. They were less good at helping Japanese stay in my head.
The habit worked, but the learning felt thin. I could keep a streak and still feel slow with kana. I could finish a lesson and still not know what I had learned. The app was loud. The Japanese was quiet.
I wanted something else. I wanted a Japanese app I could open at night without feeling yelled at.
What Inku is
Inku is a calm Japanese flashcard app for iPhone. It teaches kana, beginner vocabulary, useful phrases, handwriting, and spaced review. The main card library has bundled audio, and progress lives on your phone.
The review is meant to feel finite. You open the app. You do a few cards. You stop. That is not a growth hack. It is the product.
Who it is for
Inku is for people who want Japanese to stick, but do not want their phone to yell at them. It is for the person who studies after work, on the train, or right before bed. It is for the learner who wants a small honest session instead of another scoreboard.
If that sounds like you, read why Inku exists or start with the homepage.
Common questions
What is Inku?+
Inku is a calm Japanese flashcard app for iPhone. It teaches kana, beginner vocabulary, useful phrases, handwriting, and spaced review with bundled audio for the main card library. Progress lives on the phone, no account is required, and there are no ads.
Why build another Japanese learning app?+
Existing apps are designed to make you come back, not to make Japanese stick. I wanted a tool that respected adult attention: a finite daily session, no streak guilt, no infinite feed, and audio that plays inside the review instead of next to it.
Who is Inku for?+
Adult learners who want Japanese to stick but do not want their phone yelling at them. People who study after work, on the train, or before bed. Beginners through high N4 are the current sweet spot, with N3 in active expansion.
How is Inku different from Duolingo or Anki?+
Duolingo is gamified and broad across 40+ languages. Anki is infinitely flexible and mostly DIY. Inku is opinionated, Japanese-only, and shipped with a curated deck plus bundled pronunciation audio — no setup, no streak panic, no leaderboard.
Related reading
Try Inku, free for 7 days, or read the full roadmap.