Nihongo - Japanese Dictionary
Serpenti Sei Japan Reference iPhoneiPadiPod touch
Nihongo - Japanese Dictionary is a free Reference app for iPhone and iPad by Serpenti Sei Japan. Rated 4.8/5 from 1,871 ratings. Requires iOS 18.6.
- Rating
- 4.8
- 1.8K ratings
- Price
- Free
- on the App Store
- Size
- 492 MB
- Age 4+
- Updated
- Oct 22
- 2026 · v1.36.1
Screenshots
About Nihongo - Japanese Dictionary
Nihongo is an offline Japanese dictionary, picture-to-text translator, flashcard app, and reading assistant. Our app helps you learn Japanese naturally, using the words you encounter in daily life—on menus, signs, manga, emails, books, and more. In addition to the dictionary, you can take a picture of Japanese text or paste it from any source. Nihongo will then translate the text, add furigana or romaji, and create flashcards so you can study and steadily build your vocabulary. Here are the complete features of the app: DICTIONARY * Over 200,000 words, 205,000 example sentences, and 6000 kanji entries. * Every word clearly marked as common, uncommon, or rare. * Add your own notes to any dictionary entry. * Quickly identify transitive/intransitive word pairs. * Audio pronunciations of words and example sentences (Requires Nihongo Pro) PHOTO LOOKUP (OCR) [Pro] * Look up words just by taking a picture. * Uses Google Cloud Vision to provide high-quality text recognition. * Just tap on a word to look it up. CLIPPINGS (READING ASSISTANT) [Pro] * Adds furigana or romaji to text pasted into the app. * Tap on any word to see its definition without leaving the clipping. * Flashcard deck automatically created so you can study the new words in a clipping. * Display text horizontally or vertically. * Have Nihongo read any clipping out loud. FLASHCARDS [Pro] * Flashcards automatically generated from words you lookup in the dictionary or paste into the app. * Nihongo learns what words you know, and won't bother you again with words you've mastered. * Built-in kanji flashcard decks up through Middle School. * Intuitive spaced repetition flashcard system for vocabulary and kanji drawing. * Level up flashcards by studying every day. * No penalty for missing a day of study, come back anytime. SEARCH * Search using English, Japanese, or romaji. * Supports searching for conjugated words in both English and Japanese. * Search for kanji using radicals and stroke counts. SAFARI EXTENSION [Pro] * Add furigana or romaji to webpages. * Tap on words to see definition within Safari. Nihongo Pro Terms of Use Read our full Terms of Service at https://nihongo-app.com/terms_of_use.html. This app is only possible because of the JMDict (edrdg.org) and Tatoeba (tatoeba.org) projects. I highly encourage you to support these incredible projects that make apps like Nihongo possible!
Ratings & reviews
4.8
1.8K ratings
What’s new
Version 1.36.1 · Updated October 22, 2026
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.
App privacy
The developer, Serpenti Sei Japan, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Location: Coarse Location
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Analytics, App Functionality
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Nihongo - Japanese Dictionary | 4.8 / 5 (1,871 ratings) | Free | October 22, 2026 | |
| Shirabe Jisho | 4.9 / 5 (8,849) | Free | Oct 20, 2026 | Compare |
| Yomiwa - Japanese Dictionary | 4.7 / 5 (1,148) | Free | Oct 19, 2026 | Compare |
| Todaii: Learn Japanese N5-N1 | 4.7 / 5 (1,558) | Free | Oct 25, 2026 | Compare |
| Kanji Study - Learn Japanese! | 4.7 / 5 (7,266) | Free | Oct 26, 2026 | Compare |
| MOJisho: Japanese Dictionary | 4.7 / 5 (1,440) | Free | Oct 15, 2026 | Compare |
| Learn Japanese Kanji: Benkyō | 4.7 / 5 (3,537) | Free | Jul 7, 2026 | Compare |