Japanese Dictionary - Nihongo

Developer: Serpenti Sei Japan

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455.5K installs

9.1K ratings

35.1K monthly active users

$<10K monthly revenue est.

IAP 100% · Ad 0%

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Monthly +1.2K

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Japanese Dictionary - Nihongo Summary

Japanese Dictionary - Nihongo is a with in-app purchases iOS app in Books And Reference by Serpenti Sei Japan. Released in Jul 2014 (11 years ago). It has 9.1K ratings with a 4.79★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 35.1K monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store last updated Jun 5, 2026

Recent activity: 3.00 new ratings this week View trends →

SDK intelligence: AppGoblin detected 3 development tools(e.g. Google), 1 business tools,and 1 analytics: product integrated into Japanese Dictionary - Nihongo. View full SDK list →

Japanese Dictionary - Nihongo SDKs Summary

Japanese Dictionary - Nihongo was last scanned for SDKs on 2026-06-28. Below is the overview of third-party companies detected in the app. The full list of SDKs, permissions and unknowns is available here.

App Details

Store ID: 881697245

First Released: 2014-07-13

Store Last Updated: 2026-06-05

App Store Category: Books & Reference

In-App Purchases: Yes

Ads: No

Website: nihongo-app.com

App Store

Crawl Status: Success

AppGoblin First Crawled: 2021-02-06

AppGoblin Last Crawled: 2026-07-04

Ads & App-Ads.txt

App does not have ads.

4.79★

Ratings: 9.1K

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Screenshots

App Description

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!