Zen Kana - Learn Japanese
Hiragana, Katakana and JLPT
Free
Master Japanese kana, grammar, handwriting practice and reading with adaptive spaced repetition. JLPT prep made simple. Download Zen Kana!
Zen Kana is your personal Japanese language learning companion, designed to help you master reading, writing, and understanding Japanese from beginner to intermediate levels.
Features:
- Kana Mastery – Learn Hiragana and Katakana with structured lessons and progressive levels
- JLPT Preparation – Study toward Japanese-Language Proficiency Test levels N5-N1
- Handwriting Practice - Learn the stroke order of basic hiragana and katakana
- Grammar Lessons – Build a solid foundation with grammar explanations and practice
- Reading Practice – Improve comprehension with graded reading passages
- Vocabulary Building – Expand your word bank with curated word groups
- Adaptive Learning – The app adjusts difficulty based on your performance
- Spaced Repetition – Optimize retention with scientifically-proven review intervals
- Voice Practice – Practice pronunciation with speech recognition and text-to-speech
- Progress Tracking – Monitor your learning journey with detailed statistics
- Cloud Sync – Continue learning across devices with Firebase-backed sync
Perfect for:
- Absolute Japanese beginners
- Students preparing for JLPT exams
- Self-learners seeking structured curriculum
- Anyone wanting to improve Japanese reading skills
Download Zen Kana and start your Japanese learning journey today!
Ratings & Reviews
Practice experience
- Added dynamic practice expansion after mastery, offering up to five new kana or vocabulary items at a time.
- Added progression through kana rows and JLPT vocabulary chunks.
- Added “Today’s Practice” selection restoration, preserving newly expanded items when configured.
- Added expansion banners, continuation actions, and “practice again / choose more items” flows.
- Improved answer normalization, alternate answers, parenthetical answers, kanji display, romaji display, and stable item serialization.
- Removed the old practice session-limit and adaptive-difficulty implementation.
- Improved minimum session sizing and smart-banner behavior.
Selection and progress UI
- Improved the practice growth journey in selection screens and session summaries.
- Added clearer progression through kana and JLPT content.
- Improved selected-item practice actions and expansion choices.
- Refined JLPT and kana level layouts, including mobile behavior.
- Added reusable section headers, selectable chunk cards, and shared decoration helpers.
- Simplified and consolidated repeated selection and item-resolution logic.
- Improved lazy list usage and reduced unnecessary widget rebuilds.
Data, sync, and security
- Hardened local/cloud deserialization against malformed or incorrectly typed data.
- Fixed cross-account contamination risks when switching users on a shared device.
- Bound delayed uploads to the account that scheduled them.
- Debounced cloud settings/statistics writes while flushing pending writes on lifecycle changes.
- Added safer sync merging for lists, statistics, settings, and spaced-repetition data.
- Improved consent data validation and handling.
Performance and platform work
- Reduced rebuilds using Selector, ValueListenableBuilder, and more focused state subscriptions.
- Improved spaced-repetition lookups and item resolution.
- Parallelized Firebase, accessibility, and learning-content initialization during startup.
The developer, Jacob Suchorabski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jacob Suchorabski
- Size
- 38.5 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026, Jacob Suchorabski
