# Tomaru: Never Forget Vocab > JLPT N5–N1 & TOPIK decks built in. Reviews land right before you forget. Canonical page: [https://chrome-stats.com/d/io.tomaru.app](https://chrome-stats.com/d/io.tomaru.app) ## Overview - **ID:** `io.tomaru.app` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** THEFOOL LABS - **Category:** EDUCATION - **Downloads:** 875 - **Version:** 2.0.0 - **Last updated:** 2026-10-01 - **First published:** 2026-06-28 - **Publisher country:** TW - **Size:** 98 MB - **Data as of:** 2026-10-09 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=io.tomaru.app) - **Website:** [https://tomaruai.app](https://tomaruai.app/) - **Privacy policy:** [https://tomaruai.app/en/legal/terms](https://tomaruai.app/en/legal/terms) ## Description Never forget a word you've learned. The system tracks your memory and shows each card right when it fades. All the Japanese flashcards and Korean flashcards you need are already here.

【Never forget a word you've learned】
The FSRS spaced repetition algorithm calculates the exact moment a word slips from your memory and brings it back to your screen. You do not set any parameters. Spaced repetition works best when it is personal, so after enough reviews, the system uses your history to recalculate 21 memory model parameters. Your schedule runs on your personal retention data to help you learn Japanese words and learn Korean words effectively, rather than relying on a group average.

【Know if you have time before you start】
When setting up a plan, you see a day-by-day simulation showing the exact date you will finish and your predicted daily review count. It is not just dividing the total by days. Set a target date, and the daily load adjusts automatically. You see a clear calendar of your workload before you begin studying your Japanese flashcards or Korean flashcards.

【Start with the most effective cards when you only have 10 minutes】
Input how many minutes you have today. The system sorts your due cards by the memory gained per second, giving you the most valuable reviews first. You see a focused list built for your time limit, rather than a random batch or starting from the top. This makes spaced repetition fit into any schedule.

【The vocabulary you need is already made】
Choose from built-in decks like JLPT vocabulary covering N5, N4, N3, N2, and N1. You will also find Everyday Japanese Conversation, Japanese Daily Life vocabulary, and Hiragana & Katakana. For Korean, we provide TOPIK vocabulary including TOPIK I and TOPIK II, alongside Common Korean 3000 Words. Each card displays example sentences with native English translations, parts of speech, grammar notes in your native language, and high-quality audio. You have everything you need to master JLPT vocabulary (N5, N4, N3, N2, N1) and TOPIK vocabulary.

【Words can come from anywhere】
Paste an article to learn Japanese words, and the system tokenizes the text, reverting verbs to their dictionary forms. Take a photo to recognize text, or highlight a word in any app to add it via the system menu. Ask how to say a sentence, and the answer becomes a card to help you learn Korean words. You can build manual cards with image occlusion, and they all look just as complete as the built-in decks.

【Review without opening the app】
You can tap your answers directly on the home screen widget. Learning reminders let you know when it is time to clear your queue right from your phone's background.

【See exactly how much you remember】
Your dashboard shows a chart predicting your future daily reviews. You can also read the exact number of words you will remember for over 30 days and 90 days.

【No limits on core features】
The number of cards, reviews, decks, scheduling, and statistics have no upper limit. You use the core system as much as you need.

【AI practice】
Turn your learned words into practice routines. You can do shadow reading, bidirectional translation checked by AI, grammar drills, and speaking exercises.

This app is suitable for people preparing for the JLPT or TOPIK who want a reliable way to retain what they learn.

support@tomaruai.app ## Rankings - #1,233,813 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.CAMERA` - `android.permission.FOREGROUND_SERVICE` - `android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK` - `android.permission.INTERNET` - `android.permission.MODIFY_AUDIO_SETTINGS` - `android.permission.POST_NOTIFICATIONS` - `android.permission.READ_APP_BADGE` - `android.permission.READ_EXTERNAL_STORAGE` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.SCHEDULE_EXACT_ALARM` - `android.permission.USE_BIOMETRIC` - `android.permission.USE_FINGERPRINT` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `android.permission.WRITE_EXTERNAL_STORAGE` - `com.anddoes.launcher.permission.UPDATE_COUNT` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.google.android.c2dm.permission.RECEIVE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `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.oppo.launcher.permission.READ_SETTINGS` - `com.oppo.launcher.permission.WRITE_SETTINGS` - `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` - `io.tomaru.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` - `me.everything.badger.permission.BADGE_COUNT_READ` - `me.everything.badger.permission.BADGE_COUNT_WRITE` ## Similar extensions and apps - [MemoCrow: Japanese & JLPT](https://chrome-stats.com/d/com.memocrow.app) — 305 users - [Japanese Word Master Cards](https://chrome-stats.com/d/co.knecht.japanese_word_master_app) — 204 users - [N5-vocab](https://chrome-stats.com/d/com.antigravity.n5vocab) — 28 users - [또또JLPT - 일본어 단어 회독 암기](https://chrome-stats.com/d/com.hadam.ttottojlpt) — 3 users - [Memorize Anything! Flashcards](https://chrome-stats.com/d/com.quizmemory.app) — 130 users - [Memki: Japanese Flashcards](https://chrome-stats.com/d/com.memki.japanese) — 34 users - [JLPT Vocab Master](https://chrome-stats.com/d/com.prseo07.jlptn3words200) — 925 users - [JLPT Plus: Japanese Vocabulary](https://chrome-stats.com/d/com.mizuvt.jlptplus.free) — 85,546 users, 4.00 / 5 - [JLPT Word Master N1-N5](https://chrome-stats.com/d/com.wonil.jlptn2voca) — 309 users - [Memorize: Learn Japanese Words](https://chrome-stats.com/d/tech.memorize.japanese) — 62,875 users, 4.43 / 5 - [Nihongo Quiz - Japanese Vocab](https://chrome-stats.com/d/com.hmm.japaneseApp) — 16 users - [Vocab Routine: JLPT & TOPIK](https://chrome-stats.com/d/com.pifl.pipi.words) — 27 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/io.tomaru.app)