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 1,861 ratings. Requires iOS 18.6.
- Rating
- 4.8
- 1.8K ratings
- Price
- Free
- on the App Store
- Size
- 492 MB
- Age 4+
- Updated
- Sep 26
- 2026 · v1.35.3
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 1.35.3 · Updated September 26, 2026
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.
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
Alternatives to Nihongo - Japanese Dictionary
Looking for apps like Nihongo - Japanese Dictionary? Here are 6 similar apps on the App Store. The highest rated is Shirabe Jisho (4.9/5), and all 6 are free to download.
-
Shirabe Jisho
4.9
-
Yomiwa - Japanese Dictionary
4.7
-
Todaii: Learn Japanese N5-N1
4.7
-
Kanji Study - Learn Japanese!
4.7
-
Learn Japanese Kanji: Benkyō
4.7
-
MOJisho: Japanese Dictionary
4.7
| App | Rating | Price | Last updated |
|---|---|---|---|
| Nihongo - Japanese Dictionary | 4.8 / 5 (1,861 ratings) | Free | September 26, 2026 |
| Shirabe Jisho | 4.9 / 5 (8,780) | Free | Sep 24, 2026 |
| Yomiwa - Japanese Dictionary | 4.7 / 5 (1,138) | Free | Sep 26, 2026 |
| Todaii: Learn Japanese N5-N1 | 4.7 / 5 (1,546) | Free | Sep 18, 2026 |
| Kanji Study - Learn Japanese! | 4.7 / 5 (7,186) | Free | Sep 15, 2026 |
| Learn Japanese Kanji: Benkyō | 4.7 / 5 (3,492) | Free | Jul 7, 2026 |
| MOJisho: Japanese Dictionary | 4.7 / 5 (1,438) | Free | Sep 22, 2026 |