# 일본어 JLPT, 일단공부 > Start studying Japanese JLPT first! Canonical page: [https://chrome-stats.com/d/io.github.dev.yakuza.ildangongbu](https://chrome-stats.com/d/io.github.dev.yakuza.ildangongbu) ## Overview - **ID:** `io.github.dev.yakuza.ildangongbu` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** JeongHean Kim - **Category:** EDUCATION - **Downloads:** 168,539 - **Rating:** 4.72 / 5 (3,396 ratings) - **Version:** 6.17.5 - **Last updated:** 2026-09-04 - **First published:** 2019-03-15 - **Publisher country:** JP - **Size:** 138 MB - **Data as of:** 2026-09-14 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=io.github.dev.yakuza.ildangongbu) - **Website:** [https://deku.posstree.com/ko/contact/](https://deku.posstree.com/ko/contact/) - **Privacy policy:** [https://deku.posstree.com/privacy/ko/](https://deku.posstree.com/privacy/ko/) ## Description **Idan Study** is a comprehensive Japanese JLPT learning app designed to help learners of all levels from N5 to N1. The app offers pronunciation and writing order for hiragana and katakana, plus voice support for Japanese kanji, enabling users to study effectively even without prior knowledge. Key features include daily selectable vocabulary divided by JLPT levels, personalized tests to track daily memorization, review functions by units or levels, and a favorites section for difficult words. The app also provides furigana/yomigana tests, dark mode, detailed kanji information with Korean meanings, example sentences, and offline access since all words are preloaded. Idan Study encourages consistent learning and repetition, making it ideal for beginners and advanced learners alike. Ads can be removed via subscription to enhance the study experience. ## Rankings - #173,180 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.FOREGROUND_SERVICE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.RECORD_AUDIO` - `android.permission.USE_BIOMETRIC` - `android.permission.USE_FINGERPRINT` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.anddoes.launcher.permission.UPDATE_COUNT` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.AD_ID` - `com.google.android.providers.gsf.permission.READ_GSERVICES` - `com.hihonor.android.launcher.permission.CHANGE_BADGE` - `com.hihonor.android.launcher.permission.READ_SETTINGS` - `com.hihonor.android.launcher.permission.WRITE_SETTINGS` - `com.htc.launcher.permission.READ_SETTINGS` - `com.htc.launcher.permission.UPDATE_SHORTCUT` - `com.huawei.android.launcher.permission.CHANGE_BADGE` - `com.huawei.android.launcher.permission.READ_SETTINGS` - `com.huawei.android.launcher.permission.WRITE_SETTINGS` - `com.majeur.launcher.permission.UPDATE_BADGE` - `com.sec.android.provider.badge.permission.READ` - `com.sec.android.provider.badge.permission.WRITE` - `com.sonyericsson.home.permission.BROADCAST_BADGE` - `com.sonymobile.home.permission.PROVIDER_INSERT_BADGE` - `com.vivo.notification.permission.BADGE_ICON` - `io.github.dev.yakuza.ildangongbu.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Review summary Users appreciate the app's well-organized vocabulary sets, daily reminders, simple UI, and helpful testing features that support steady Japanese language learning. However, multiple reviews note issues with audio quality and missing pronunciations, lack of detailed explanations especially for irregular verbs, limited example sentences, and disruptive advertisements. Notifications while motivating can sometimes feel intrusive. Overall, the app is valued for facilitating consistent study, but improvements in audio support and richer learning content would enhance user experience. ### Pros - Effective for daily Japanese vocabulary study with organized word lists divided into manageable chunks (15 words per session). - Regular notifications/reminders help maintain consistent study habits. - Simple and clean user interface making it easy to use and navigate. - Inclusion of tests/quizzes and TTS (text-to-speech) for pronunciation aids learning. - Good content organization by JLPT levels, focusing on useful and frequently used vocabulary. ### Cons - Audio pronunciation sometimes inaccurate or missing, causing inconvenience. - Irregular or incomplete explanations, such as lack of details on irregular verb conjugations. - Limited example sentences or contextual usage for words, reducing deeper understanding. - Presence of frequent ads that cause display issues and distract users. - Notifications may feel nagging or repetitive to some users. ## Similar extensions and apps - [Ultimate Japanese JLPT Trainer](https://chrome-stats.com/d/com.learn_japanese_alphabet_n) — 203 users - [일본어 학습 단어장](https://chrome-stats.com/d/com.suldenlion.pocketjapanese) - [단단](https://chrome-stats.com/d/dev.doomini.dandan) — 1 users - [Japanese JLPT (Япон хэл)](https://chrome-stats.com/d/mn.dino.jlpt) — 115 users - [JLPT JFT - Learn Japanese](https://chrome-stats.com/d/com.jlptjft.app) — 529 users - [JLPT Study (N1/N2/N3/N4/N5)](https://chrome-stats.com/d/com.daniel.jlptstudy) — 31 users - [JLPT Learn & Test](https://chrome-stats.com/d/tienjoneey.com.jlptencyclopedia) — 1,370 users - [JLPT 한자 학습](https://chrome-stats.com/d/com.recommendation.jlptapp) — 43 users - [니혼GO! 일본어 학습 · JLPT N5부터 N1까지](https://chrome-stats.com/d/com.bluevanilla.nihongo) — 560 users - [Japanese Remember, JLPT N5~N1](https://chrome-stats.com/d/com.japan_memo) — 196,229 users, 3.40 / 5 - [日檢喵 JLPT：日文學習 N5-N1](https://chrome-stats.com/d/com.nekoquest.jlpt) — 90 users - [EdoGo - Belajar Bahasa Jepang](https://chrome-stats.com/d/com.artoriago.edogo) — 2 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/io.github.dev.yakuza.ildangongbu)