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Master
Kanji
with your hands.
Build real kanji recall through stroke-order writing practice and smart spaced repetition. No gimmicks. No fluff. Just focused study that actually works.
Built for serious learners
Stop recognizing kanji. Start recalling them. Kaeru combines proven study methods into one focused, distraction-free experience.
Native Stroke Order
Learn correct kakijun to distinguish similar characters. Writing builds muscle memory that recognition drills never can.
Smart SRS Algorithms
Stop wasting time on words you already know. Reviews are scheduled at the exact moment you're about to forget.
Vocabulary by Topics
Beyond kanji — learn vocabulary organized by real-world topics. JLPT-curated decks for both kanji and vocabulary, ready to go.
Practice Texts
Generate reading practice texts from your decks. See your words in real context and build reading comprehension naturally.
Audio & Pronunciation
Listen to high-quality native audio and assess your own pronunciation. Train your ear alongside your writing hand.
iPad & Apple Pencil
The most satisfying, tactile kanji study experience on the App Store. Designed for precision writing practice.
How it works
Three steps to kanji mastery. No setup required.
Choose your level
Pick a JLPT deck from N5 (beginner) to N1 (advanced) and start studying immediately with curated content.
Write & learn
Practice stroke order by hand. The app guides you through correct writing patterns, building real muscle memory.
Review smart
SRS schedules reviews at the optimal moment, so you spend time on characters you're about to forget, not ones you already know.
Start mastering kanji today
Download Kaeru and begin your journey from hiragana reader to kanji writer. Free to start, no account required.
Requires iOS 18.6 or later. Works on iPhone and iPad.