Vocapy vs Stocka
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vocapy
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Vocapy — Learn English Words with Images Tired of buying English vocabulary books and never finishing them? Vocapy turns any English word into a personalized learning experience. Simply enter a word, and AI automatically generates its meanings, example sentences, visual images, and native pronunciation. Instead of memorizing boring Japanese translations, learn English words by seeing and hearing the situations in which they are actually used — helping them stick in your memory naturally. Perfect for • Learners preparing for the TOEIC or EIKEN • Anyone who has bought vocabulary books but struggled to keep studying • Anyone who finds memorization difficult • Learners who want to study phrases, phrasal verbs, and idioms as well as individual words Key Features ▷ AI-generated meanings, example sentences, images & audio Vocapy supports not only individual words, but also phrases, phrasal verbs, and idioms such as “party animal” and “spill the beans.” AI identifies the key meanings and automatically generates example sentences, visual images, and native pronunciation audio for each meaning. ▷ Remember words by seeing the situation AI turns the scene described in an example sentence into an image. Instead of simply memorizing translations, you learn each word through the situation where it is actually used. This helps you remember words longer and naturally understand how to use them in context. ▷ Create your own vocabulary books Create and organize your own vocabulary books however you like. Build personalized lists for different goals, such as TOEIC preparation, everyday conversation, or any other learning purpose. ▷ Smart review schedule based on the forgetting curve Vocapy uses the SM-2 algorithm to schedule reviews at the right time — just before you are likely to forget a word. Review efficiently and build long-term memory without having to decide what to study every day. ▷ 4 Learning Modes • Image Cards — Learn at your own pace with images and example sentences • Image Quiz — Guess the meaning from the image • Word Quiz — Match English words with their meanings • English Writing — Write your own sentence using the word and get AI-powered feedback (Pro) ▷ Features that make learning easier to keep up • Daily reminders with customizable notification times • Home screen widget to see today's words at a glance • Learning streaks to help you stay motivated ▷ Preset Vocabulary Books (Pro) Import 100-word vocabulary books for different TOEIC levels — 500 / 600 / 700 / 800 — with a single tap. Start learning right away without having to create your own vocabulary list. Pricing • Free Plan: ¥0 AI image generation: up to 30 images/month / Basic features • Pro Plan: ¥1,000/month or ¥10,000/year (¥833/month) English definitions, usage, contexts, core meanings / All features Terms of Use: https://docs.google.com/document/d/e/2PACX-1vSjmF2K7FKMoW-MiJSjDmmWqzrtJVTfLC1BSUOBMmwn-0lELkoL8h9mUqpl-IwCBfikcxBJgo9HljUz/pub Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vR-HDUH2i3M9i1y_UlDP7mKLBlsdEoSQM-jYnkUcX8o0b3mmPQ5rtW49085ol8gv9IBLu4SjyUdGtHc/pub
Stocka
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Stockaは、「翻訳」を「英語学習」に変えるアプリです。 ふつうの翻訳アプリは、訳した瞬間に終わり。でも、あなたが翻訳しようとした文には、あなたが“まだ身についていない英語”が必ず詰まっています。Stockaはそこに注目し、翻訳と同時に学びを抜き出して、あなたの知識とし て残します。 ■ こんな人に ・日本語ネイティブで、英語を本気で習得したい ・翻訳アプリは使うけど、結局その場限りで身につかない ・単語帳や復習が続かない ■ できること 1. ニュアンス別の翻訳(日本語⇄英語) カジュアル/フォーマルなど、複数の自然な言い回しを提示します。 2. 構文・文法・単語の3層解説 その文の「構文のポイント」「文法のポイント」「単語のポイント」を、日本語学習者向けに整理します。 3. 周辺・対比知識の整理 混同しやすい表現(例:be used to +ing と used to do)をまとめて対比し、勘違いを防ぎます。 4. 知識カードにストック 翻訳から“転用できる一般的な知識”を抽出してカード化。あなただけの知識ライブラリが育ちます。 5. 忘却曲線で復習 エビングハウスの忘却曲線に基づく間隔反復で、忘れる前に復習。定着まで導きます。 ■ 料金 ・無料:翻訳 月30回、知識ストック15枚まで。すべての機能をお試しいただけます。 ・プレミアム:翻訳・知識ストックが無制限。学習統計も使えます。月額/年額からお選びいただけます(自動更新サブスクリプション)。 翻訳を、あなたの英語力に。Stockaで“ためて、身につく”学習を始めましょう。 プレミアム(自動更新サブスクリプション) ・プラン/価格:月額 ¥980 / 年額 ¥7,800 ・お支払い:購入確定時にApple IDアカウントへ請求されます。 ・自動更新:現在の期間終了の24時間前までに自動更新をオフにしない限り、サブスクリプションは自動更新され、更新ごとに料金が請求されます。 ・管理/解約:購入後、App Storeのアカウント設定からサブスクリプションの管理・自動更新の解除ができます。 ・利用規約(EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ・プライバシーポリシー:https://backend-five-lake-27.vercel.app/privacy.html
Screenshots
Verdict
The clearest difference is ads: Stocka at none against Vocapy's shown. Vocapy's advantage is iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support 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. Vocapy sells 2 in-app purchases, starting at $5.99 per month and Stocka sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Vocapy | Stocka |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 63 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Shiori Kitayama | Shosuke Sato |
In-app purchases
Vocapy
- PRO$5.991 Month
- PRO 年額$59.991 Year
Stocka
- プレミアム(月額)$5.991 Month
- プレミアム(年額)$49.991 Year









