Write Japanese every day.

Prompt-based writing practice with structured feedback, natural rewrites, vocabulary suggestions, and tracked grammar mistakes.

Coming soon
GokuGoku writing screen
GokuGoku feedback screen

Guided prompts, free writing

Choose a suggestion, a translation task, or a dialogue prompt. Then write freely in Japanese. GokuGoku does not ask you to pick the right answer. It asks you to produce sentences yourself.

Each answer comes back with a natural rewrite, grammar notes, better word choices, and a history of the mistakes you keep making.

PromptChoose what to write
WriteAnswer in Japanese
FeedbackCorrections, rewrite, alternatives
MistakesTrack recurring grammar issues

Recognition

読む
to read

Production

Recognition is not production

Flashcards like Anki train you to see 読む and recall "to read." That is recognition. But when you need to say "I read every morning," can you produce 読む in context?

Productive vocabulary — words you can actually use — directly predicts writing and speaking ability. Passive recognition does not. GokuGoku trains the reverse path.

What to expect

With about 30 exercises a day — roughly 15–20 minutes — you build real productive vocabulary at a steady, measurable pace.

Weak words reappear sooner, mastered words fade to spaced review. These are words you can use — not just recognize.

Month 1200–400 words
0words
Core productive vocabulary
Month 3N5 mastery
0words
~800 productive words
Month 6N4 range
0words
Multi-clause sentences

Simple pricing

One plan. Everything included.

MonthlyYearlySave 14%
14.99/month
  • Generous writing practice limits
  • Instant feedback on every sentence
  • Dialogue mode with connected prompts
  • Spaced repetition for weak words
  • Works with your own vocabulary
  • Cancel anytime

GokuGoku is coming to mobile.

Coming soon