PenFlow vs OCR Korea
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PenFlow
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PenFlowは、ひらがな・カタカナ・アルファベット(大文字・小文字)の書き方を楽しく学べる書き取り練習アプリです。 【主な機能】 • 書き順デモ:お手本アニメーションで正しい書き順を確認 • 採点システム:形の正確さと書き順の正確さをAIが判定(S〜Dランク) • 音声読み上げ:文字と関連する言葉を読み上げ(「あ」→「あめ」、「A」→「Apple」) • 進捗管理:カテゴリごとの練習状況とカバー率を表示 • 144文字収録:ひらがな46字・カタカナ46字・大文字26字・小文字26字 【こんな方におすすめ】 • ひらがな・カタカナを学び始めるお子さま • アルファベットの書き方を練習したいお子さま • 正しい書き順を身につけたい方 • 楽しみながら文字を覚えたい方 書き順に沿って丁寧に書く練習を重ねることで、きれいな文字が書けるようになります。
OCR Korea
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Point your camera at Korean text and start learning. OCR Korea turns photos of Hangul into study material: extract text with OCR, listen to it read aloud, and memorize words - all in one app. WHO IT IS FOR - Fans who want to learn the Korean they see in K-dramas and K-pop - Travelers who want to read signs and menus in Korea - Learners who find making word lists tedious - Anyone who wants to learn pronunciation together with reading SCAN (OCR) Take a photo or pick one from your library, and the app turns Hangul into text with high accuracy. Retry with one tap if recognition fails. LISTEN AND LEARN (TEXT TO SPEECH) A Korean voice reads the text aloud while the current position is highlighted and scrolled automatically, so you can follow with your eyes and ears. Adjust the speed, pause and resume anytime. Tap any word to hear its pronunciation. UNDERSTAND INSTANTLY (TRANSLATION) Show Japanese or English translations line by line with one tap. Results are saved, so you can review them offline later. YOUR OWN STUDY LIST Scanned texts are saved to My List. Organize them with search and swipe actions, and build your own textbook. 20 SAMPLE LESSONS INCLUDED Greetings, daily conversation, travel phrases and more - start learning right after installing. KEEP GOING EVERY DAY - Study reminder notifications (choose your preferred time) - Summary of your streak, study time, words and sessions - Home screen widget to check progress at a glance Take one photo of the Korean around you. It is the first step toward reading Korean every day.
Screenshots
Verdict
The clearest difference is ads: PenFlow at none against OCR Korea's shown. PenFlow also leads on update cadence (every 10 days vs every 3 weeks). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.
PenFlow ships an update every 10 days, OCR Korea every 3 weeks. Both last shipped on October 31, 2026.
| Parameter | PenFlow | OCR Korea |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 5 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | SANWA Inc. | BYNET |
In-app purchases
PenFlow
No in-app purchases
OCR Korea
No in-app purchases









