アプリ内課金あり
iPhone / iPad 対応
492.5MB
年齢4+
Nihongo - Japanese Dictionaryはどんなアプリ？
Japanese Dictionary - Nihongoは、オフラインで利用できる日本語辞書や読解支援機能を備えた学習アプリです。
単語の意味を調べるだけでなく、写真から文字を読み取って翻訳する機能も備わっています。撮影した画像内の単語をタップするだけで意味を確認できるため、街中の看板やメニューを前にした際に困ることもありません。貼り付けた文章にはふりがなやローマ字を付与する機能があり、読解の練習に活用できます。学習履歴から覚えきれていない単語を抽出して復習するカード機能もあり、語彙を定着させるための学習を効率的に進められます。
ネット環境がない場所でも辞書を引き出せるため、移動中や旅行先での学習に適しています。自分のペースで新しい単語を整理しながら、日本語の語彙を確実に増やしたい人に向いています。
アノアプリによる紹介文です。デベロッパー公式の説明はApp Storeでご確認いただけます。
Nihongo - Japanese Dictionaryの注目ポイント
オフラインで使える辞書
電波の届かない場所でも辞書を引き出せます。地下鉄での移動中や通信環境が不安定な旅行先でも、必要な単語の意味をすぐに確認できます。
写真から文字を読み取る機能
カメラで撮影した看板やメニューの文字を瞬時に判別します。画像内のテキストをそのまま翻訳し、現場で意味を把握する際に役立ちます。
ふりがなとローマ字による読解支援
貼り付けた文章にふりがなやローマ字を付加します。難しい漢字の読み方を視覚的に補うことで、読解のスピードが上がります。
履歴に基づいた単語帳
学習履歴からあらわれる単語を自動で選別し、単語帳を作成します。自分の習熟度に合わせて、覚えたい語彙を定着させられます。
レビューの分析
動詞の活用や例文が充実しており学習に役立つ点が評価されています。検索履歴から単語カードを自動生成する機能があり、関連する単語も一緒に表示されるため記憶に残りやすいです。公開されている範囲では、これらの機能が語彙力を高める助けになると好評です。
一部の記述に誤りがあるという指摘があります。有料コンテンツが含まれている点についても、あわせて意見が出ています。片手での操作性を高めるため、入力欄を画面の下側に配置してほしいという要望も挙がっています。
アノアプリがApp Storeで公開中のレビューをもとに分析しています。
価格履歴
現在は無料です。過去132日間、価格は変わっていません。
アノアプリが独自に収集した価格履歴をもとに分析しています。
- 買い時判定
- 通常価格
- 記録期間
- 132日
- 最頻価格
- 無料
- 記録上の最安値
- 無料
価格更新履歴
| 日付 | 価格 |
|---|---|
| 2026-06-23 | 無料 |
ランキング推移
辞書／参考書（無料）：最終圏内 80位（2026年10月15日）
ユーザーレビュー （当サイト投稿）
まだレビューがありません。最初のレビューを書いてみましょう。
アプリ更新履歴 活発に更新中
Ver 1.36.2 2026-11-01
Bug Fixes
* Fix missing flashcard controls and misaligned progress indicators when folding iPhone Duo.
* Fix flashcard editors becoming clipped, appearing in the wrong position, or reopening after dismissal when folding iPhone Duo or resizing an iPad window.
* Fix inconsistent flashcard corner rounding on iOS 26 and later.
* Fix incorrect section headings in dictionary popovers.
* Fix spacing in kanji origin previews.
* Fix a gray strip appearing in the photo viewer after zooming or panning on iOS 26 and later.
* Fix the Nihongo Pro banner becoming hidden after returning from a flashcard deck.
* Fix missing flashcard controls and misaligned progress indicators when folding iPhone Duo.
* Fix flashcard editors becoming clipped, appearing in the wrong position, or reopening after dismissal when folding iPhone Duo or resizing an iPad window.
* Fix inconsistent flashcard corner rounding on iOS 26 and later.
* Fix incorrect section headings in dictionary popovers.
* Fix spacing in kanji origin previews.
* Fix a gray strip appearing in the photo viewer after zooming or panning on iOS 26 and later.
* Fix the Nihongo Pro banner becoming hidden after returning from a flashcard deck.
Ver 1.36.1 2026-10-22
Bug Fixes
* Fix an issue where restoring a backup could incorrectly delete flashcards for words that were removed and then re-added to the dictionary.
* Fix layout issues in Search and Flashcards when folding iPhone Duo, rotating an iPad, or resizing a window.
* Fix clipped content in dictionary popovers and kanji origin previews.
* Fix Clipping toolbar controls appearing in the wrong order in Two Column Reading Mode.
* Fix Clippings saved through Shortcuts not appearing immediately when returning to the app.
* Fix the ordering of similar hiragana, katakana, and kanji suggestions in handwriting search.
* Fix misalignment of the search camera button on iOS 26 and later.
* Fix a missing Done button after completing a flashcard session on iOS 18.
* Fix the newsletter sign-up form being clipped in smaller iPad windows.
* Fix text formatting in flashcard tutorials.
* Fix an issue where restoring a backup could incorrectly delete flashcards for words that were removed and then re-added to the dictionary.
* Fix layout issues in Search and Flashcards when folding iPhone Duo, rotating an iPad, or resizing a window.
* Fix clipped content in dictionary popovers and kanji origin previews.
* Fix Clipping toolbar controls appearing in the wrong order in Two Column Reading Mode.
* Fix Clippings saved through Shortcuts not appearing immediately when returning to the app.
* Fix the ordering of similar hiragana, katakana, and kanji suggestions in handwriting search.
* Fix misalignment of the search camera button on iOS 26 and later.
* Fix a missing Done button after completing a flashcard session on iOS 18.
* Fix the newsletter sign-up form being clipped in smaller iPad windows.
* Fix text formatting in flashcard tutorials.
Ver 1.36 2026-10-19
Major Features
* iPhone Duo Support - Nihongo adapts as you fold and unfold your iPhone Duo, making the most of both displays.
* Two Column Reading Mode - Read Clippings and use Photo Lookup with dictionary definitions beside your text or photo. Requires iOS 27.1 or later.
Other Improvements
* Add labels to handwriting suggestions to distinguish similar hiragana, katakana, and kanji characters.
* Replace the retired OCR.space option with improved on-device Photo Lookup, including vertical Japanese text on iOS 26 and later.
* Add a monthly newsletter from Nihongo's creator. Join from Settings for app news and upcoming features.
* Improve the app icon’s appearance in Dark Mode.
Bug Fixes
* Fix kanji reading examples to show spellings containing the kanji you’re viewing.
* Fix Dutch, Spanish, French, and German translations.
* Fix word flashcard text shrinking after the first card appears.
* Fix flashcard content being obscured when Reduce Transparency is enabled on iOS 26.
* Fix the appearance of Done buttons when editing notes or completing flashcard sessions on iOS 26 and later.
* Fix some kanji elements appearing blank in kanji breakdowns.
* Fix kanji-element headings being hidden behind navigation buttons in iPad popovers.
* Fix incorrect word counts and a possible crash when navigating highlighted words in Clippings.
* Fix Photo Lookup failing to open images supplied by Shortcuts.
* Fix the tab bar disappearing when switching tabs as a flashcard session opens.
* Fix clipped letters in flashcard editor note previews.
* Fix the radical keyboard appearing empty after resizing an iPad window.
* iPhone Duo Support - Nihongo adapts as you fold and unfold your iPhone Duo, making the most of both displays.
* Two Column Reading Mode - Read Clippings and use Photo Lookup with dictionary definitions beside your text or photo. Requires iOS 27.1 or later.
Other Improvements
* Add labels to handwriting suggestions to distinguish similar hiragana, katakana, and kanji characters.
* Replace the retired OCR.space option with improved on-device Photo Lookup, including vertical Japanese text on iOS 26 and later.
* Add a monthly newsletter from Nihongo's creator. Join from Settings for app news and upcoming features.
* Improve the app icon’s appearance in Dark Mode.
Bug Fixes
* Fix kanji reading examples to show spellings containing the kanji you’re viewing.
* Fix Dutch, Spanish, French, and German translations.
* Fix word flashcard text shrinking after the first card appears.
* Fix flashcard content being obscured when Reduce Transparency is enabled on iOS 26.
* Fix the appearance of Done buttons when editing notes or completing flashcard sessions on iOS 26 and later.
* Fix some kanji elements appearing blank in kanji breakdowns.
* Fix kanji-element headings being hidden behind navigation buttons in iPad popovers.
* Fix incorrect word counts and a possible crash when navigating highlighted words in Clippings.
* Fix Photo Lookup failing to open images supplied by Shortcuts.
* Fix the tab bar disappearing when switching tabs as a flashcard session opens.
* Fix clipped letters in flashcard editor note previews.
* Fix the radical keyboard appearing empty after resizing an iPad window.
Ver 1.35.5 2026-10-08
Improvements
* Improve photo sharing from other apps, including images shared with captions or other attachments.
* Improve localized kanji deck names, including shared decks.
* Improve translations and update Japanese voice-download instructions for newer iOS versions.
Bug Fixes
* Fix a crash that could occur when deleting the last photo attached to a word.
* Fix review counts including flashcards for words removed from the dictionary.
* Fix dictionary titles briefly appearing when opening entries on iPad.
* Fix the vertical alignment of the OK and Back flashcard tabs on iOS 26.
* Fix status-bar contrast in Photo Lookup and while opening flashcard decks.
* Fix the Search icon’s appearance in light and dark mode.
* Fix a delay in bolding the selected word when opening a Clipping.
* Fix deck Import and Share buttons appearing black instead of blue on iOS 26.
* Improve photo sharing from other apps, including images shared with captions or other attachments.
* Improve localized kanji deck names, including shared decks.
* Improve translations and update Japanese voice-download instructions for newer iOS versions.
Bug Fixes
* Fix a crash that could occur when deleting the last photo attached to a word.
* Fix review counts including flashcards for words removed from the dictionary.
* Fix dictionary titles briefly appearing when opening entries on iPad.
* Fix the vertical alignment of the OK and Back flashcard tabs on iOS 26.
* Fix status-bar contrast in Photo Lookup and while opening flashcard decks.
* Fix the Search icon’s appearance in light and dark mode.
* Fix a delay in bolding the selected word when opening a Clipping.
* Fix deck Import and Share buttons appearing black instead of blue on iOS 26.
Ver 1.35.4 2026-09-30
Improvements
* Refresh Nihongo’s app icon with a new Liquid Glass design.
Bug Fixes
* Fix a crash that could occur when opening What’s New.
* Fix Spotlight updates sometimes failing during temporary system errors.
* Fix the kanji drawing area and flashcard layout shifting after returning to Nihongo.
* Fix the right-side area becoming blank after reselecting the Dictionary in the iPad sidebar.
* Fix the Clipping character-limit message repeatedly reappearing after being dismissed.
* Refresh Nihongo’s app icon with a new Liquid Glass design.
Bug Fixes
* Fix a crash that could occur when opening What’s New.
* Fix Spotlight updates sometimes failing during temporary system errors.
* Fix the kanji drawing area and flashcard layout shifting after returning to Nihongo.
* Fix the right-side area becoming blank after reselecting the Dictionary in the iPad sidebar.
* Fix the Clipping character-limit message repeatedly reappearing after being dismissed.
Ver 1.35.3 2026-09-26
Improvements
* Improve the appearance and readability of word-definition popovers in Photo Lookup and Clippings.
Bug Fixes
* Fix saved Clippings and studied words disappearing from Spotlight results.
* Fix iCloud sync conflicts remaining unresolved after successfully restoring a backup.
* Fix the flashcard review tutorial appearing again after restoring existing data.
* Fix some Chinese and Russian text becoming progressively smaller.
* Fix status-bar text contrast when using the iPad sidebar.
* Fix dictionary search placeholder text becoming difficult to read after returning to Nihongo.
* Fix missing warnings when a website blocks word-definition popups in Safari on iOS 27.
* Fix Live Activities disappearing from the Dynamic Island during flashcard review on iOS 26 and later.
* Improve the appearance and readability of word-definition popovers in Photo Lookup and Clippings.
Bug Fixes
* Fix saved Clippings and studied words disappearing from Spotlight results.
* Fix iCloud sync conflicts remaining unresolved after successfully restoring a backup.
* Fix the flashcard review tutorial appearing again after restoring existing data.
* Fix some Chinese and Russian text becoming progressively smaller.
* Fix status-bar text contrast when using the iPad sidebar.
* Fix dictionary search placeholder text becoming difficult to read after returning to Nihongo.
* Fix missing warnings when a website blocks word-definition popups in Safari on iOS 27.
* Fix Live Activities disappearing from the Dynamic Island during flashcard review on iOS 26 and later.
Ver 1.35.2 2026-09-16
Improvements
* Refresh in-app tutorial screenshots throughout Nihongo.
* Refine dictionary navigation titles and compact word popovers on iOS 26.
Bug Fixes
* Fix an iPadOS 18 crash that could occur when resizing the app after canceling a back gesture.
* Fix the area around the Home indicator displaying incorrectly during flashcard sessions on iOS 18.
* Fix “View Conjugations” sometimes disappearing after resizing Nihongo on iPad.
* Fix the Sync screen’s navigation bar background displaying incorrectly while resolving an iCloud sync conflict on iOS 26.
* Fix Spotlight results becoming stale or failing to update after startup, dictionary updates, or system reindexing.
* Refresh in-app tutorial screenshots throughout Nihongo.
* Refine dictionary navigation titles and compact word popovers on iOS 26.
Bug Fixes
* Fix an iPadOS 18 crash that could occur when resizing the app after canceling a back gesture.
* Fix the area around the Home indicator displaying incorrectly during flashcard sessions on iOS 18.
* Fix “View Conjugations” sometimes disappearing after resizing Nihongo on iPad.
* Fix the Sync screen’s navigation bar background displaying incorrectly while resolving an iCloud sync conflict on iOS 26.
* Fix Spotlight results becoming stale or failing to update after startup, dictionary updates, or system reindexing.
Ver 1.35.1 2026-09-15
Improvements
* Refine the Liquid Glass design in Photo Lookup, Flashcards, Example Sentences, and the Japanese keyboard on iOS 26.
* Replace the kanji drawing trash button with a clearer eraser control.
Bug Fixes
* Fix flashcard controls and the flashcard editor moving out of place during iPad multitasking and window resizing.
* Fix cramped flashcard and kanji drawing layouts on iPhones with a Home button.
* Fix Photo Lookup controls sometimes remaining hidden or displaying incorrectly after navigating, zooming, or toggling OCR.
* Fix dictionary titles, word-entry sections, and conjugation links displaying incorrectly after iPad layout changes.
* Fix visual gaps and incorrect backgrounds around the Japanese keyboard.
* Refine the Liquid Glass design in Photo Lookup, Flashcards, Example Sentences, and the Japanese keyboard on iOS 26.
* Replace the kanji drawing trash button with a clearer eraser control.
Bug Fixes
* Fix flashcard controls and the flashcard editor moving out of place during iPad multitasking and window resizing.
* Fix cramped flashcard and kanji drawing layouts on iPhones with a Home button.
* Fix Photo Lookup controls sometimes remaining hidden or displaying incorrectly after navigating, zooming, or toggling OCR.
* Fix dictionary titles, word-entry sections, and conjugation links displaying incorrectly after iPad layout changes.
* Fix visual gaps and incorrect backgrounds around the Japanese keyboard.
Ver 1.35 2026-09-14
Major Features
* Liquid Glass Design - Nihongo has a beautiful new Liquid Glass design on iOS 26 and later.
* Pitch Accents with Nihongo Pro - Pitch accent information is now included with Nihongo Pro, with no separate purchase required.
* App Shortcuts & Spotlight - Find saved Clippings and studied words in Spotlight, automate Nihongo in the Shortcuts app.
Other Improvements
* Add Visual Intelligence support to look up Japanese text in photos and screenshots on supported devices.
* Add Shortcuts actions to create Clippings, manage flashcard decks, start reviews, and look up Japanese text in images.
* Improve sentence parsing, with more common grammatical endings available to tap and explanations that better match their meaning in context.
* Improve handwriting search for 々 and small kana, and allow deleting one handwriting stroke at a time.
* Make Clippings open faster.
* Improve French and Russian dictionary definitions.
Bug Fixes
* Fix an issue where leaving the Clipping editor could discard unsaved changes without warning.
* Fix an issue where switching between reading and editing a Clipping would reset the cursor position.
* Fix missing furigana and pronunciation audio on flashcards for words with mixed hiragana and katakana readings.
* Liquid Glass Design - Nihongo has a beautiful new Liquid Glass design on iOS 26 and later.
* Pitch Accents with Nihongo Pro - Pitch accent information is now included with Nihongo Pro, with no separate purchase required.
* App Shortcuts & Spotlight - Find saved Clippings and studied words in Spotlight, automate Nihongo in the Shortcuts app.
Other Improvements
* Add Visual Intelligence support to look up Japanese text in photos and screenshots on supported devices.
* Add Shortcuts actions to create Clippings, manage flashcard decks, start reviews, and look up Japanese text in images.
* Improve sentence parsing, with more common grammatical endings available to tap and explanations that better match their meaning in context.
* Improve handwriting search for 々 and small kana, and allow deleting one handwriting stroke at a time.
* Make Clippings open faster.
* Improve French and Russian dictionary definitions.
Bug Fixes
* Fix an issue where leaving the Clipping editor could discard unsaved changes without warning.
* Fix an issue where switching between reading and editing a Clipping would reset the cursor position.
* Fix missing furigana and pronunciation audio on flashcards for words with mixed hiragana and katakana readings.
Ver 1.34.4 2026-07-13
Update App Store metadata.
