拡大くん vs JClass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
拡大くん
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「拡大くん」は、気になる文字を見やすく大きく表示できる日本語学習・文字確認アプリです。 入力した文字を一文字ずつカードに分けて表示。細かな形をじっくり確認したいときや、漢字の書き順を確かめたいときに、すぐ使えます。 【主な機能】 ・入力した文字を一文字ずつ大きく表示 ・漢字の書き順をアニメーションで確認 ・入力した単語全体を日本語版Wiktionaryで検索 ・最近調べた内容を端末内の履歴から再表示 ・文字カードの表示サイズを調整 【使い方】 1. 調べたい文字や単語を入力します。 2. 「大きく表示」をタップします。 3. 文字カードを選び、形や書き順を確認します。 4. 単語の意味を調べるときは「辞書で調べる」をタップします。 アカウント登録は不要です。検索履歴は端末内に保存されます。 本アプリにはバナー広告があります。希望する場合のみリワード広告を視聴でき、視聴完了後は30分間バナー広告が非表示になります。
JClass
Master Japanese easily with a virtual tutor. Progress through hiragana, katakana, kanji, and vocabulary with interactive quizzes and progress tracking. Earn achievements and compete on leaderboards.
- Learn hiragana, katakana, and kanji
- Vocabulary building
- Interactive quiz mode
- Progress tracking
- Achievements and leaderboards
- Content review by level
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JClass helps you learn Japanese: hiragana, katakana, and the kanji and vocabulary of every JLPT level, from N5 to N1. STUDY WHAT YOU DON'T KNOW YET Quick quizzes sort every character and word by how well you know it. The ones you miss come back more often, and new ones appear only when you're ready. Wrong answer options are look-alike kanji and similar words, so guessing won't help. WHAT'S INSIDE • Hiragana and katakana • 2,000+ kanji with on and kun readings, radical, stroke order and example words • 4,100+ vocabulary words • Searchable dictionaries for kana, kanji and words • Audio pronunciation • Meanings in English, Spanish, French, German, Portuguese or Russian ALSO • iCloud sync across your devices • Game Center achievements • Dark mode • No ads, no in-app purchases
Screenshots
Verdict
The clearest difference is price: 拡大くん at Free against JClass's $4.99. 拡大くん also leads on in-app purchases (none vs 6) and update cadence (fortnightly vs every 2 months). JClass's advantage is ads (none vs shown) and device support (3 vs 1).
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
拡大くん is free to download; JClass costs $4.99 up front. JClass sells 6 one-off in-app purchases. 拡大くん asks for nothing beyond the download.
拡大くん ships an update fortnightly, JClass every 2 months. The most recent releases landed on October 29, 2026 and November 2, 2026 respectively.
| Parameter | 拡大くん | JClass |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | — | 4.7 (376 ratings) — better |
| Positive reviews | — | 75.5% of reviews |
| Number of ratings | — | 376 — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuya Fujiwara | Jorge Cozain |
Bugs and requests
拡大くん
Not enough reviews yet to summarise bugs or requests.
JClass
Reported bugs
20 issues- Crashing on iPhone
- App crashes with iOS 13.4
- App crashes every time
- App don't working on iPhone 5C
- Purchased but it didn’t work
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- App crashes everytime that use it
- App crashes
- After update, app doesn't work
- App not working on iPad
- App crashes on iPhone X
- App crashes on iPhone 6
- App hangs/stuck
- Payment does not work correctly
- Purchased N5, requires re-payment
- Purchased N2, wish I didn't
- Purchased full access, not opened
- Error in word transcrib
- App is closing alone
- App is not reacting to touches
- Purchased full set, doesn't react to touches
Requested features
14 requests- Add Russian language
- Add more language options
- Ability to reset progress
- Landscape mode for iPad
- Transfer progress to other devices
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- Faster speed between questions
- Dark mode option
- Add Hiragana as an alphabet
- Feature to select specific words for testing
- Allow restarting exercises
- Fix TTS pronunciation
- Add 'kun' readings in Hiragana and 'on' readings in Katakana
- Improve JLPT word training
- Add Russian translation for Kanji
In-app purchases
拡大くん
No in-app purchases
JClass
- JLPT N5Free
- JLPT N4Free
- JLPT N2Free
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- JLPT N3Free
- JLPT N1Free
- Full JLPT AccessFree









