Aikochan vs BOUEN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aikochan
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Learn Japanese Vocabulary with Apple Intelligence Tired of boring flashcards that make your eyes glaze over? Aikochan harnesses Apple Intelligence to generate personalized JLPT vocabulary cards on the fly. Every card comes with accurate furigana, natural example sentences, and AI-generated illustrations that help words stick in your memory. The best part? All AI processing happens right on your iPhone—no internet needed, no data uploaded, completely private. --- What You Get Smart Learning System • Powered by Apple Intelligence to generate JLPT N5-N1 vocabulary on demand • AI creates accurate furigana, meanings, and natural Japanese example sentences • Scientifically-proven spaced repetition system schedules reviews at optimal times • Three-stage progress tracking: New → Memorizing → Memorized Simple, Intuitive Controls • Swipe right when you need more practice • Swipe left when you've got it down • Tap to reveal answers and test yourself • Rate as Forgot/Good/Easy to adjust future review timing Rich Visual Features • Apple Intelligence auto-generates beautiful illustrations for vocabulary • Draw your own memory aids with Apple Pencil • Add photos from camera or library • Edit any image anytime Learn Anywhere • Home screen widgets rotate words every hour • Study without opening the app • Prioritizes cards due for review • One tap to dive deeper when you want --- Who Should Use Aikochan? You'll love this app if you're: • Preparing for JLPT and need to build vocabulary systematically • Tried other methods but words just won't stick • A visual learner who needs images to remember • Looking to use commute time productively • Privacy-conscious and don't want learning data in the cloud • Simply passionate about Japanese and want to improve steadily --- About Privacy We get it—learning records are personal. Some people study sensitive topics, others don't want anyone knowing their skill level. So Aikochan's design philosophy is simple: • No account required • No server connections • No data collection • Everything runs locally on your iPhone Your flashcards, progress, and test results live only on your device. --- System Requirements • iOS 18.4 or later • iPhone 15 Pro or newer recommended for full Apple Intelligence features • Older iPhones work too, but some features require manual input --- Bottom Line Aikochan uses Apple Intelligence to make learning Japanese vocabulary easier, more effective, more fun, and more private. You don't need hours every day—just consistency. Ready to get started? Download Aikochan and give yourself a real shot at mastering Japanese vocabulary.
BOUEN
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把日常,掃描成你的日文字庫 BOUEN 是一款專為日語學習者設計的詞彙管理App,把生活中隨處可見的日文文字,變成你隨時可以複習的專屬字庫。 -拍照掃描,秒速建立字卡- 路上看到的招牌、包裝上的說明、餐廳的菜單——只要拍下來,App會自動辨識日文文字,一鍵加入你的學習字庫,不用再手動輸入。 -詞典資料一次齊全- 每個單字都附上讀音、詞性、例句、同義詞等,不只知道意思,還知道怎麼用。 -間隔重複記憶法- 運用科學實證的SRS複習系統,在最適合的時機提醒你複習,記得更牢、更持久。 -按JLPT等級分類管理- 從N5到N1,依照你的學習進度分類單字卡,清楚掌握每個等級的學習狀況。 -視覺化學習成果- 月曆式活躍度紀錄,一眼看到自己每天的學習軌跡,累積成就感。 無論你是剛開始接觸日文,還是準備JLPT考試,BOUEN都能陪你把每一次生活中的相遇,變成扎實的日文實力。 本App提供BOUEN PRO自動續訂訂閱方案。服務條款(EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ | 隱私權政策:https://sites.google.com/view/bouen-app-privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Aikochan at none against BOUEN's 1. Aikochan also leads on update cadence (daily vs every 4 days). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. BOUEN sells 1 in-app purchase, starting at $1.99 per month. Aikochan asks for nothing beyond the download.
Aikochan ships an update daily, BOUEN every 4 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.
| Parameter | Aikochan | BOUEN |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 4 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 18.4 | 18.2 — better |
| Further details — not scored | ||
| Size | 18 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | CHI MIN LEE | Sai Ho Coke |
In-app purchases
Aikochan
No in-app purchases
BOUEN
- BOUEN PRO3 Days trial$1.991 Month









