Kaku: Japanese Notebook
Kaku: Japanese Notebook Summary
Kaku: Japanese Notebook is a with in-app purchases iOS app in Tools by Dittman Shum. Released in Jun 2020 (5 years ago). It has 3.00 ratings with a 4.67★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 11 monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store metadata: updated Jan 2, 2026.
Store info: Last updated on App Store on Jan 2, 2026 .
4.67★
Ratings: 3.00
Screenshots
App Description
Kaku is an app for learning Japanese, perfect for beginner to intermediate learners. It helps with sentence structure by merging useful tools in one place:
- A live feedback translator for sentences
- Word lookup via Jisho.org for Japanese or English terms
- Inline Translate (⌘ + I) feature for quick sentence translations
- Conjugation tool for nouns, verbs, and adjectives
- Shadow Reader gives audio and text highlighting
- Synced sheets between iPhone and iPad for easy access
- Word lists for various categories
- Auto-translate clipboard feature for web text snippets
- Reader Mode for better readability on large screens
- Widgets offering a rotation of Japanese words and meanings
Report bugs or suggestions to @kaku_app and follow for updates.