Skip to content
Inku

Blog

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.

BBao HuaUpdated 2026-04-284 min read

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.

Try Inku, free for 7 days, or read the full roadmap.