Product Features

A focused stack for long-term Japanese retention.

Zen Kana combines foundational kana training, level-based JLPT content, and review scheduling inside one cohesive interface.

1. Kana Learning

Dedicated paths for Hiragana and Katakana with guided sets, progress bars, and targeted repetition.

  • Basic rows and voiced combinations
  • Track selected and mastered characters
  • Fast practice mode for daily review

2. JLPT Path (N5 to N1)

Vocabulary and grammar sets are organized by level so learners can build toward specific exam goals.

  • N5: 1,141 words
  • N4: 631 words
  • N3: 1,814 words
  • N2 + N1: 2,400 words

3. Spaced Repetition

Review queues prioritize what is due now while reducing over-review of already mastered items.

  • Difficulty-aware interval updates
  • Due and overdue status tracking
  • Session continuity after interruptions

4. Analytics

Performance views expose accuracy, practice time, and review-state distribution for actionable feedback.

  • Overall and recent accuracy
  • Sessions completed and total time
  • Learning/in-review/overdue breakdown
Interface Preview

Core screens in an iOS-style frame

15:37JLPT Path

5,986 words / 5 levels

N5 Beginner1141
N4 Elementary631
N3 Intermediate1814
N2 + N1 Advanced2400
JLPT level browser
15:38Overview

Stats & Insights

Accuracy

78%

Total Time

7h 12m

Due

63

In Review

50

Practice now for optimal retention.
Statistics dashboard

Cross-platform note: this website is statically generated and hosted on Cloudflare Pages, while app learning data remains in the app ecosystem (iOS app and web app).