Sumire Japanese Keyboard

com.kazumaproject.markdownhelperkeyboard
by Zapstore _@zapstore.dev

Republished from GitHub / F-Droid by the Zapstore main account.

Sumire is a Japanese keyboard (IME) that operates completely offline. You can input Japanese even without an internet connection. All information, including input characters, learning data, and user dictionaries, is processed and stored locally on the device. Since no data is sent to external servers, it's safe for those who prioritize privacy and security. It provides an uninterrupted Japanese input experience even in unstable locations like the subway, airplane mode, international roaming, and mountainous areas. ■ Concept "Your words stay on your device." Sumire is a Japanese input app with a strict privacy-first philosophy. It features a clean, ad-free and tracking-free design and a lightweight, low-latency input engine. It covers a wide range of scenarios, from everyday chats to business emails and long-form text writing. ■ Key Features ・Completely offline: Operates with zero data usage. Japanese typing is possible even in environments with no signal reception, minimizing battery drain. ・Comprehensive privacy protection: Data is stored and processed locally on the device. Ideal for entering highly confidential information without external transmission. ・High-speed input engine: Low-latency design that responds immediately to taps and flicks. Conversion candidates are displayed quickly, making long sentences stress-free. ・Optimized predictive conversion: Covers a wide range of words, from general language to everyday conversation and business terminology. Intelligent candidate suggestions reduce the number of taps for faster input. ・Flick input and QWERTY layout: Choose flick input for quick one-handed input, or QWERTY keyboard for those accustomed to physical keyboards or two-handed input. ・Simple and intuitive UI: No initial setup required. Switching keyboards and changing settings is easy, making it easy for even smartphone beginners. ・Black and white modern theme: A minimalist design that prioritizes visibility. Easy to see in both dark and light settings, the color scheme reduces fatigue even when typing in Japanese for long periods of time. ・Lightweight design: Launches and switches quickly as an Android keyboard. Works smoothly even on low-spec devices. ・Free and ad-free: No in-app purchases or subscriptions. We deliver a clean experience for a long time. ■ Feature details ・Predictive conversion/learning: Presents appropriate conversion candidates based on your typing habits. In-device learning eliminates unnecessary communications, improving efficiency while protecting privacy. - Flick optimization: Intuitively move up, down, left, and right from the center of the A row to quickly input "A, I, U..." with minimal effort. Ideal for thumb operation when typing with one hand. - QWERTY Japanese input: Smooth Japanese typing for those who prefer the Roman alphabet. Supports a wide range of applications, from short messages to work documents. - Improved conversion experience: Enter punctuation, symbols, and numbers with ease. Candidates switch based on context, allowing for smooth input even when composing emails or reports. - User dictionary: Register frequently used words and proper nouns to improve input efficiency. Stored on-device for peace of mind. - Stability and reliability: With no ads or tracking scripts, no unnecessary processing occurs with each input, providing a consistently fast and stable experience. ■ Recommended for ・Those who want to input Japanese offline, even on the subway, airplane, or overseas business trip ・Business users who handle highly confidential data such as customer information and internal documents ・Those who want to quickly update chats and social media accounts with one-handed flick input ・Students and working adults who want to efficiently input romaji characters using a QWERTY keyboard ・Those looking for a reliable, ad-free Japanese input app for Android ■ Example Usage Scenarios ・Replying to messages and taking notes on the commuter train (same-day experience even with unstable signal) ・Taking notes during meetings or on the go (secure, no data transfer required) ・Writing journals or manuscripts in mountainous areas or in airplane mode while traveling (completely offline for peace of mind) ・Communications requiring privacy (Japanese input on the device) ■ Reasons for choosing it with confidence Sumire is designed with privacy as its top priority, building on the foundations of a Japanese keyboard's requirements: high-speed input, accurate predictive text conversion, lightweight design, and easy one-handed operation. Since there's no external transmission, it's easy to implement even in environments with strict security policies, making it ideal for a wide range of uses, from personal to business. It offers all the functionality you need in a Japanese input method (IME), while its minimalist UI makes it easy to get started. Completely offline, privacy-conscious, fast flick input, lightweight, and ad-free, Sumire delivers a comfortable and secure typing experience to anyone using Japanese input on Android. Install it now and enter your words "safely, smoothly, and beautifully."

First release: Aug 4, 2026, 11 total releases.

Most recent release: Sep 26, 2026.

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Releases

  • Sep 26, 2026 1.7.123
    ## What's Changed * Release 1.7.122 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1064 * Merge pull request #1064 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1065 * 2段・3段フリックの斜め判定を改善 / Improve diagonal recognition in multi-stage flicks by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1066 * 設定画面のシステムバーと ActionBar の重なりを修正 / Fix settings system bar and ActionBar overlap by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1067 * Fix physical keyboard state when other input devices are removed / 他の入力デバイス削除時の物理キーボード状態を修正 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1068 * 物理キーボードのモード表示をカーソル位置に追従させる by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1070 * 物理キーボード用フローティング操作バー / Floating toolbar for physical keyboards by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1069 * update 1.7.123 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1071 * Release 1.7.123 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1072
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    * Merge pull request #1072 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1073 **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.122...v1.7.123
  • Sep 25, 2026 1.7.122
    ## What's Changed * Fix IME switch popup disappearing / IME切替ポップアップが消える問題を修正 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1059 * update version by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1060 * 設定起動時のSharedPreferences待ちを解消 / Avoid blocking settings startup on SharedPreferences by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1061 * udpate versions by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1063 **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.120...v1.7.122
  • Sep 23, 2026 1.7.120
    ## What's Changed * Fix QWERTY Caps Lock persistence and stale navigation test by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1051 * Fix physical romaji comma and period output by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1054 * update versions by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1055 * Release 1.7.120 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1056 * Merge pull request #1056 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1057 **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.119...v1.7.120
  • Sep 22, 2026 1.7.119
    ## What's Changed * 分割キーボードを追加し、既存フロート操作・テーマ・設定保存に対応 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1016 * QWERTY 設定を分割し英語・ローマ字のスペースフリックを追加 / Split QWERTY settings and add space flicks by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1013 * Unify floating keyboard with split panel design by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1017 * 辞書・定型文フロートを追加し入力とタップ操作を改善 / Add floating dictionary managers with easier input and tapping by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1014 * feat: ユーザーが入力したテキストの大文字・小文字を尊重する by @Robot-Inventor in https://github.com/KazumaProject/JapaneseKeyboard/pull/1021 * update version by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1029 * fix(ime): suggestions get hidden when in landscape by @vivekmundhra-prog in https://github.com/KazumaProject/JapaneseKeyboard/pull/1028 * Revert "fix(ime): suggestions get hidden when in landscape" by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1033 * fix: split Cupertino flick popups without hidden PopupWindow APIs by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1035
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    * IMEの変換欄高さを修正 / Fix IME candidate height with navigation insets by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1036 * QWERTY の Caps Lock 解除後にローマ字変換へ復帰 / Restore QWERTY romaji conversion after Caps Lock release by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1040 * 初回リリースで変換欄高さを標準値へ統一 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1041 * Improve candidate height settings UX by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1042 * Update versions by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1043 * 記号キーボード上部の余白を修正 / Fix top gap in symbol keyboard by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1044 * update version by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1045 * update app version by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1046 * Release 1.7.119 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1047 * Merge pull request #1047 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1048 * Fix Android release workflow action versions by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1049 **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.115...v1.7.119
  • Sep 13, 2026 1.7.115
    ## What's Changed * 1.7.114 のリリース by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1002 * Merge pull request #1002 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1003 * 文節変換で全文の表記を保持 / Preserve full conversion across bunsetsu segments by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1004 * 文節変換の定型文候補とNGワード判定を修正 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1008 * カスタムローマ字の画面入力を修正し、促音・撥音を配列別に設定可能にする by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1005 * feat: 未確定文字と候補欄の独立・統合フロート表示 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1007 * update version by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1009 * release 1.7.115 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1011 * Merge pull request #1011 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1012
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    **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.114...v1.7.115
  • Sep 10, 2026 1.7.114
    ## What's Changed * Merge pull request #948 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/949 * improve keyboard selection discoverability by @AoSankaku in https://github.com/KazumaProject/JapaneseKeyboard/pull/950 * fix settings action bar state across navigation by @AoSankaku in https://github.com/KazumaProject/JapaneseKeyboard/pull/953 * 数式変換候補を追加 / Add formula conversion candidates by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/963 * インライン候補の表示切替を追加 / Add an inline suggestion display toggle by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/962 * カスタムキーボードのバックアップ文言を明確化 / Clarify custom keyboard backup labels by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/964 * 設定画面のマクロ導線重複を解消 / Remove duplicate macro settings entry by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/965 * Fix macro text input cursor reset / マクロ入力のカーソルリセット修正 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/966 * 未入力時の変換欄の高さをリセット既定値に追加 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/967
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    * Fix QWERTY number flick guide text size by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/968 * 辞書の更新 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/969 * fix: シンボルキーボードの高さをテンキーに合わせる by @Robot-Inventor in https://github.com/KazumaProject/JapaneseKeyboard/pull/973 * fix deleted custom keyboard key restoration by @AoSankaku in https://github.com/KazumaProject/JapaneseKeyboard/pull/951 * 英語読み辞書の完全一致検索を修正 / Fix exact-match lookup for English readings by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/972 * fix(zenz): 壊れた変換候補を防止 / Prevent malformed conversion candidates by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/977 * [BUG] Liquid Glass 時の削除ちらつきを修正 / Fix deletion flicker with Liquid Glass by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/983 * Add Petal Flick toggle input with safe appends and required center output by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/978 * NGワードの完全一致・部分一致対応 / Support exact and partial NG word matching by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/982 * 物理キーボードの変換範囲変更時に範囲外文字列を保持 / Preserve out-of-range text when narrowing physical-keyboard conversion by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/984 * 設定画面の重複生成・XML解析と入力モード保存の負荷を削減 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/987 * 入力欄に基づく Enter 判定を修正し、Gboard 比較の網羅テストを追加 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/989 * docs: remove obsolete development documents by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/993 * スミレ入力βのキー間タッチ判定を改善 / Fix touch detection between Sumire beta keys by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/995 * 確定＋半角スペースを追加 / Add CommitAndInsertSpace (#863) by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/990 * Add DeleteAfterCursor for #914 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/991 * サムネイル付きテーマ選択とクパチーノ着せ替えを追加 / Add theme previews and Cupertino skins by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/992 * Update/versions by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/996 * カスタムトグルの待機時間を反映 / Honor custom keyboard toggle timeout by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/997 * フリック専用入力の背景色が待機後に変わる不具合を修正 / Fix timed background changes in flick-only input by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/998 * カスタムキーボードのトグル修正とかなテンプレート追加 / Fix custom keyboard toggles and add kana template by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/999 * 候補欄のIncognitoアイコンをテーマ色に追従 / Match candidate-strip Incognito icon to theme color by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1000 * update version by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/1001 ## New Contributors * @AoSankaku made their first contribution in https://github.com/KazumaProject/JapaneseKeyboard/pull/950 **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.111...v1.7.114
  • Sep 1, 2026 1.7.111
    ## What's Changed * Merge pull request #918 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/919 * update dictionay by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/921 * update dictionary by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/923 * ngram 辞書の更新 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/924 * fix flick bottom in qwerty become tap action by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/926 * Androidのインラインオートフィル候補に対応 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/942 * 計算・単位換算候補を追加 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/940 * 動的テキストマクロ機能を追加 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/941 * 高速入力の回帰テストを安定化し、五十音キーボードをモジュール化 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/945
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    * 辞書の更新 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/946 * Fix system n-gram runtime test after dictionary update by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/947 * [リリース] v1.7.108 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/948 **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.107...v1.7.111
  • Aug 15, 2026 1.7.107
    ## What's Changed * Merge pull request #908 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/909 * ２段、３段フリックの新しいフリックのポップアップビューの設定の追加 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/910 * Add Sumire center-guide flick input by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/912 * Feature/english yomi by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/916 * gix issue 913 and 915 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/917 * release 1.7.107 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/918 **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.106...v1.7.107
  • Aug 10, 2026 1.7.106
    ## What's Changed * Merge pull request #899 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/900 * fix candidate full button by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/902 * improve diff util by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/903 * Codex/analyze emoji kaomoji candidates by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/904 * Update/dictionary by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/905 * delete PIP_INPUT_LAG_ANALYSIS.md by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/907 * v1.7.106 のマージ by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/908
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    **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.105...v1.7.106
  • Aug 6, 2026 1.7.105
    ## What's Changed * Add dev branch PR CI by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/895 * Merge pull request #895 from KazumaProject/dev by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/896 * Docs/dev branch operation by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/897 * Fix/ime input freeze by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/898 * Create Release v1.7.105 by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/899 **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.104...v1.7.105
  • Aug 4, 2026 1.7.104
    ## What's Changed * Stabilize fast-input emulator test setup by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/891 * feature: Add fullscreen mode configuration by @vivekmundhra-prog in https://github.com/KazumaProject/JapaneseKeyboard/pull/892 * Fix flick popups and add input behavior settings by @KazumaProject in https://github.com/KazumaProject/JapaneseKeyboard/pull/893 **Full Changelog**: https://github.com/KazumaProject/JapaneseKeyboard/compare/v1.7.102...v1.7.104