Appteka Logo
Appteka
Sumire Japanese Keyboard app icon

Sumire Japanese Keyboard

Verified safe
v1.7.33 (728)
Published Apr 17, 2026
Download APK
93.91 MB
Android 7.0+
11
arm64-v8a
What's New
https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.31...v1.7.33/
Description
Sumire is a Japanese keyboard built on a single, uncompromising philosophy: absolute privacy. Your thoughts and conversations should never be an asset for third parties. We achieve 100% offline functionality by ensuring every process, from keystroke to candidate conversion, happens entirely on your device. Built on the open-source mozc engine, Sumire enhances the writing experience with advanced personalization features like a powerful user dictionary, convenient snippets, and fully customizable keyboard layouts, aiming to make typing a truly personal experience. ✨ Key Features - 🔒 100% Offline & Secure Works flawlessly in airplane mode. With zero network permissions, your data never leaves your device. Period. - 🧠 Powerful Conversion Engine Powered by the large-scale dictionary from mozc (the core of Google's Japanese IME) for highly accurate, context-aware predictions. - 📖 Powerful User Dictionary Get predictive suggestions for your registered words via forward-matching search. Full import/export support gives you complete control over your dictionary. - 📋 Convenient Snippets Instantly insert frequently used phrases, email addresses, or greetings using an exact-match trigger word. Also supports import/export. - 🎨 Ultimate Customization Go beyond themes. Adjust key height and sensitivity, and even create your own fully custom keyboard layouts to perfectly match your typing style. - 📱 Modern by Design Developed in Kotlin from the ground up and optimized with Jetpack libraries for a smooth, fast, and responsive UI. It's also optimized for tablets and foldables. 🔐 Privacy & Security - Zero Network Permission: The AndroidManifest.xml does not contain the INTERNET permission. - Encrypted Learning Data: Your personal dictionary and learning data are stored locally, encrypted with AES-256. 📄 License Copyright © 2025 Kazuma Naka MIT License
Rate this app
0 / 1000
Optional for 4–5 stars. Required for 1–3 stars (min 10 characters).
Ratings & reviews
No reviews yet.
Download Sumire Japanese Keyboard APK v1.7.33 for Android · Appteka