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Coban: 日本語を学ぶ

Akira NOGUCHI · Education · Japan store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card Google Play version →
Revenue a month, worldwide
Too small to estimate
Not enough chart or ratings data
New ratings
+0
in 1 days, 1.9K in total
Rating
4.7 of 5
213 ratings in this store
Countries it ranks in
0
was 0 on Oct 18, 2026

Revenue

Estimated from the grossing charts of Oct 24, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / MONTH · WORLDWIDE
Unranked
Not in any grossing chart, and it sells nothing in the store (no in-app purchases, free download). Any revenue comes from ads or payments outside the store, which we can't see.
EST. LIFETIME DOWNLOADS
7.5K to 21.3K
Estimated from ratings count
RATINGS
213
AVG RATING
4.72
PRICE
無料
AGE
6.6y
LAST UPDATE
8d ago
VERSION
4.5.1
SIZE
661 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart and daily ratings counts.

DAYS IN A GROSSING CHART
2 / 30
COUNTRIES NOW
0 (was 0)
NEW RATINGS, LAST 1 DAYS
+0
EST. REVENUE A MONTH, DAILY · BOTH STORES EST
Show daily values
Sep 26, 2026not in a grossing chart
Sep 27, 2026not in a grossing chart
Sep 28, 2026not in a grossing chart
Sep 29, 2026not in a grossing chart
Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
Oct 2, 2026not in a grossing chart
Oct 3, 2026not in a grossing chart
Oct 4, 2026not in a grossing chart
Oct 5, 2026not in a grossing chart
Oct 6, 2026not in a grossing chart
Oct 7, 2026not in a grossing chart
Oct 8, 2026not in a grossing chart
Oct 9, 2026not in a grossing chart
Oct 10, 2026$35.3K a month
Oct 11, 2026not in a grossing chart
Oct 12, 2026not in a grossing chart
Oct 13, 2026not in a grossing chart
Oct 14, 2026not in a grossing chart
Oct 15, 2026not in a grossing chart
Oct 16, 2026not in a grossing chart
Oct 17, 2026not in a grossing chart
Oct 18, 2026not in a grossing chart
Oct 19, 2026not in a grossing chart
Oct 20, 2026not in a grossing chart
Oct 21, 2026not in a grossing chart
Oct 22, 2026not in a grossing chart
Oct 23, 2026$9.2K a month
Oct 24, 2026not in a grossing chart
Oct 25, 2026not in a grossing chart
The same estimate as the headline, saved every day. Best rank Sep 26, 2026: not ranked. Now: not ranked.
RATINGS IN THE CORE COUNTRIES, DAILY
Show daily values
Oct 23, 20261.9K ratings
Oct 24, 20261.9K ratings
1.9K on Oct 23, 2026, 1.9K on Oct 24, 2026. New ratings track new downloads, even outside the charts.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
0.2 reviews / week
  • Trendfalling
  • Recent reviews average4.4 stars
  • Recent 1 and 2 star share9%
From the latest 68 written reviews, covering 2387 days.
RELEASE CADENCE
10 updates in 90 days
  • Typical gap between releases11 days
From the last 25 versions listed on the App Store.
RATING BREAKDOWN
213 ratings
5★84%
4★9%
3★4%
2★2%
1★1%

What users want

From the latest 68 reviews on the Japan App Store, Apr 12, 2020 to Sep 29, 2026: 9% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS

No common theme in the bad reviews, or they aren't in English.

WHAT THEY ASK FOR
  • I submitted a feature request and they got back to me in less than 24 hours. 5★, Sep 16, 2025
  • I want to be able to pick up where I left off. 4★, Feb 26, 2025
  • I wish I found this app earlier, so now I'm just waiting for it to update with N4 grammar breakdowns, and N3 hopefully. 5★, Jul 15, 2021
  • I wish I had discovered this app earlier when I started Japanese. 5★, Jun 6, 2021
  • The quizzes are perfect but I wish there were more for each lesson. 5★, May 6, 2021
  • I only have one request: Could you please add the N3 kanji as well? 5★, Apr 9, 2021
  • It would be great if there was an N3 kanji section, one that's just like the N4 kanji section, with the same format, same reading/meaning sections and everything but for N3 instead. 5★, Apr 9, 2021
  • I know this is material for N5 learners but I would LOVE to see more for levels N4-N1. 5★, Sep 20, 2020
WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Useful, it helps27%

15 of the 4 and 5 star reviews.

★★★★★ The VS functionality to help identify differences in similar grammar points is especially useful.
★★★★★ The practice/test helps me master the kanji easily.
★★★★★ I'm going to be taking the N3 this December and I was struggling with finding an app that had good grammar practice. The textbooks are a lot and can get boring easily, but so far i've learned a lot from this app in my…
Easy to use15%

8 of the 4 and 5 star reviews.

★★★★★ It has a nice, intuitive flow with daily reviews, podcasts, books, and language tests.
★★★★★ Easy to master and how to write kanji, detailed list of vocabulary, grammar and listening too.
★★★★★ In addition, to the resource, the interface is nice and easy to navigate.
Worth the money13%

7 of the 4 and 5 star reviews.

★★★★★ I knew them from a series of N5 and N4 materials available online entirely for free.
★★★★★ You can learn N5-N3 for FREE.
★★★★★ Overall though, I love the content in the new update, the only thing stopping me from getting the premium upgrade is the lagging (You can still learn up to JLPT 3 for free.) it's still a very good source to use, it has…
Fun, addictive7%

4 of the 4 and 5 star reviews.

★★★★★ The textbooks are a lot and can get boring easily, but so far i've learned a lot from this app in my 2 days using it, and it's rlly fun, and the developer is super nice.
★★★★★ I just want to start with I LOVE this app, it's well organized, easy to navigate, and fun!
★★★★★ I am really having fun learning Japanese with this APP.
Looks great5%

3 of the 4 and 5 star reviews.

★★★★★ The app has a friendly interface and plenty of examples.
★★★★★ In addition, to the resource, the interface is nice and easy to navigate.
★★★★★ For grammar stuff it's hands down the best resource I've found, but again, the UI doesn't work well.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, Japan App Store.

★★★★★Sep 29, 2026
Amazing!

I’ve been a fan of the creator of this app for the longest time, before the app evolved so much. I knew them from a series of N5 and N4 materials available online entirely for free. I studied alone for some years, and it’s in great part thanks to this material that I passed on both N5 and N4 (back in 2021 and 2022). Now, I am very happy to see how the app is much more polished, with lots more resources, as I’m sure it will help me a lot with N3 and beyond. This is a creator I am very happy to support, and I have been very satisfied with everything I have seen so far. I highly recommend it for anyone who’s serious about studying Japanese! The app has a friendly interface and plenty of examples. The VS functionality to help identify differences in similar grammar points is especially useful. Keep up the excellent work! ⭐️

★★★★★Sep 19, 2026
This app has everything

I recently abandoned a well-known language app for this one, and my wife and I have been really pleased with what this one has to offer. It has a nice, intuitive flow with daily reviews, podcasts, books, and language tests. It has everything that I wanted in a Japanese language app.

★★★★★Sep 11, 2026
Es una aplicación muy completa

La recomiendo para estudiar, porque tiene diferentes actividades como lectura de libros, kanji, escucha, exámenes de simulacro, y hay retroalimentación.

★★★★★Sep 1, 2026
Excelente aplicativo complementar

Na minha humilde opinião é um aplicativo eficiente, achei muito completo para praticar, memorizar, descobrir, conhecer, pra quem vai fazer o JLPT, muito eficiente e prático, とてもべんりですね

★★★★★Aug 17, 2026
Best

Best best and best

★★★★★Jul 23, 2026
Structured really well!!

I have tried many apps to help study 日本語 this app hits all the spot.. it’s organized and structured so good made my my studying much effective. Money well spent. ありがとうございます

Store screenshots

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App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

No App Store ads in the EU
None in the last 90 days.

Apple only publishes ads shown in the EU (EU Digital Services Act), with a 7 day delay. An app that advertises only outside the EU shows nothing here.

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

jlpt5coban jlpt3jlpt jlpt3coban3

What's new in 4.5.1

- SRSのドラッグ＆ドロップ操作に関するUIの不具合を修正しました。 - iOS 15に対応しました。 - UIを改善し、軽微な不具合を修正しました。

Released Apr 8, 2020. Current version shipped Oct 17, 2026.

Store description

ひらがなからJLPT N1まで。語彙・漢字・文法・リスニング・読解・復習を、Cobanひとつで体系的に学べます。 Cobanは、ただ暗記するだけではなく、日本語の仕組みを理解し、実際に使える力を身につけたい学習者のためのアプリです。文法や語彙を文脈の中で学び、日本語のパターンを理解しながら自然な日本語力を伸ばしていきます。 — N5からN1まで学習 初級から上級まで、JLPT N5〜N1に対応したコンテンツを体系的に学習できます。 • 語彙 7,500語以上 • 漢字 2,100字以上 • 文法 490項目以上 • 例文 2,500文以上 • JLPT N5・N4・N3・N2・N1対応 — 音声で学習 12,000以上の音声を収録。 単語や例文を聞きながら、発音・リスニング・シャドーイングの練習ができます。 — 学んだ内容をしっかり復習 クイズやSRS復習機能を使って、語彙・漢字・文法を効率よく定着させることができます。 — オフラインでも学習 学習コンテンツは端末に保存されるため、インターネット接続がない環境でも日本語を学習できます。 — 試験だけではない、実際に使える日本語 CobanはJLPT対策だけを目的としたアプリではありません。日本語が文脈の中でどのように使われるのかを理解し、読解・リスニング・会話・日常のコミュニケーションに活かせるよう設計されています。 日本語を始めたばかりの方からJLPT N1を目指す方まで、レベルに合わせて長く使える日本語学習アプリです。

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