Comparison

赤シート英単語帳:暗記カードで英検・TOEIC vs Kayi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

赤シート英単語帳:暗記カードで英検・TOEIC

Learn English vocabulary efficiently by understanding word origins. This completely free app offers multiple learning modes, example sentences, and pronunciation support for TOEIC and Eiken exams. Track your progress and set daily goals to build a consistent study habit.

Highlights
  • Learn vocabulary through word origins
  • Multiple quiz and memorization modes
  • Supports TOEIC and Eiken levels
  • Includes example sentences and audio
  • Progress tracking and goal setting
  • Customizable word lists
  • Ad-free and completely free
Features
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【完全無料・広告なし】語源で覚える英単語アプリ AI語源単語帳は、TOEIC・英検の英単語を「語源」から効率的に覚えられる学習アプリです。 すべての機能が完全無料・広告なし。課金要素は一切ありません。 ◆ 語源で「なぜその意味になるのか」がわかる --- 単語を丸暗記するのではなく、接頭辞・語根・接尾辞から意味の成り立ちを理解できます。 例:current curr-(ラテン語 currere = 走る) 「流れ走るもの」→ 流れ・電流・現在の 一度理解すれば、currency・occur・concur など関連語も芋づる式に覚えられます。 解説に出てくる「インド・ヨーロッパ祖語」「古英語」などの専門用語は、タップすれば意味と具体例が読めます。語源が初めてでも置いていかれません。 ◆ 9つの学習モード --- ・4択クイズ … テンポよく意味を確認 ・赤シート … 日本語を隠して一覧で暗記 ・集中テスト … 苦手な単語を重点的に ・タイムアタック … 制限時間で実力を測定 ・ライティング … スペルを書いて定着 ・文章穴埋め … 例文の空欄を埋めて文脈ごと覚える ・リスニング … 音声を聞いて意味を選ぶ ・スクランブル … 文字を並び替えてスペルを完成 ・ボス戦 … 連続正解でボスが出現。スペル入力で挑む ◆ 対応レベル --- 【TOEIC】600点 / 800点 / 990点 【英検】3級 / 準2級 / 2級 ◆ 学習サポート機能 --- ・収録5,868語すべてに例文と和訳 ・音声読み上げ(速度0.5〜2.0倍) ・学習データ・統計の可視化 ・1日の目標単語数・週間目標の設定 ・連続学習日数の記録 ・英→日 / 日→英の表示切り替え ・カスタム単語帳の作成 ・既存の単語帳への単語追加 ・通知リマインダー ・ランキング(今日・週間・月間・累計) ・テーマカラーの変更(24色+好きな色を自由に指定) ◆ こんな方におすすめ --- ・TOEIC 600〜990点を目指している方 ・英検3級〜2級を受験予定の方 ・丸暗記が苦手で、語源から理解したい方 ・無料で広告なしのアプリを探している方 ・毎日コツコツ続けたい方 ◆ なぜ無料なのか --- 開発コストを極限まで抑えた個人開発のため、完全無料・広告なしで提供しています。 すべての単語帳・学習モード・語源データを無料・無制限でご利用いただけます。 ご質問・ご要望はアプリ内の「お問い合わせ」からお気軽にどうぞ。

About

Kayi

Features
Read full description

Studying shouldn't feel like a chore. Forget overly complicated settings, clunky interfaces, and confusing algorithm setups. Welcome to Kayi — the swipe-based flashcard maker designed for people who just want to learn effortlessly. Swipe Right if you remembered it. Swipe Left if you didn't. That's it! In a single, fluid gesture, you review cards as naturally as scrolling through your favorite feeds. Behind this delightfully minimal interaction lies a powerhouse multimedia card studio: easily combine text, crystal-clear photos, crystal-clear voice recordings, and HD video clips to build flashcards that your brain actually remembers! 1. EFFORTLESS SWIPE INTERACTION: FLUID & ADDICTIVE · Tap to Flip: A gentle tap flips the card seamlessly between front and back. · Swipe to Rate: Swipe Right or Up for "Memorized", Swipe Left or Down for "Forgotten". · Single-Handed Flow: Review dozens of cards in minutes on the subway, during coffee breaks, or before bed. · Satisfying Haptics: Subtle acoustic sounds and tactile vibrations make every swipe feel rewarding. 2. FULL MULTIMEDIA STUDIO: BEYOND PLAIN TEXT · Voice & Audio Notes: Record native pronunciations, oral answers, or lecture snippets with high-definition audio. · Embedded Video Clips: Add short clips directly from your camera or photo library — perfect for lab experiments, sign language, dance choreography, or musical fingerings. · Photos & Diagrams: Snap textbook notes, equations, charts, or whiteboard sketches in a flash. · Clean Dual-Sided Layout: Uncluttered front prompts with rich, structured explanations on the back. 3. SMART, TARGETED STUDY MODES · Forgotten Cards: Zero in on cards you swiped left on. Drill only your stubborn weak points without wasting time on what you already know. · Unfamiliar Only: Automatically skip mastered cards to slash review sessions in half. · Restart All: Reset your entire deck for comprehensive pre-exam overhauls. · Flip Front & Back: Swap prompts and answers with one tap — essential for bidirectional language practice and formula derivations. · Shuffle Mode: Mix up card order to test genuine knowledge rather than positional habit. 4. REAL-TIME MASTERY STATS & HABIT TRACKING · Mastery Percentage: Instantly see what percentage of each deck you have truly conquered. · Weekly Activity Chart: Track your daily card volume and learning velocity over the past 7 days. · Daily Streaks: Keep your momentum alive and turn quick reviews into an automatic daily habit. 5. READY-TO-STUDY CURATED DECKS (DISCOVER TAB) · SAT / ACT Core Vocabulary: 1,000+ high-yield words with classical etymology and magazine excerpts. · Word Power Master Lexicon: 1,500+ advanced words for GRE, GMAT, and collegiate reading. · IELTS High-Frequency Core: Bilingual definitions and authentic exam contexts. · Everyday Spanish Essentials: Real-world conversational phrases for travel and social communication. · Everyday Japanese & English Dialogues: Natural, high-frequency situational speech. · Add with One Tap: Import any curated deck directly into "My Cards" and begin swiping instantly. 6. PRIVACY, FREEDOM & SEAMLESS SYNC · Automatic iCloud Sync: Seamlessly continuity across your iPhone and iPad. · Total Data Ownership: Full JSON backup and standalone deck import/export. Your study material stays yours. · 100% Offline Ready: Full functionality without an internet connection — study on planes, trains, or deep in the library. · Ad-Free & Distraction-Free: No pop-ups, no tracking, and no intrusive feeds. Just pure, focused learning. Terms of Use (EULA):  https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

赤シート英単語帳:暗記カードで英検・TOEIC4 screens
Kayi4 screens

Verdict

The call

The clearest difference is in-app purchases: 赤シート英単語帳:暗記カードで英検・TOEIC at none against Kayi's 2. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kayi sells 2 in-app purchases, starting at $1.99 per month. 赤シート英単語帳:暗記カードで英検・TOEIC asks for nothing beyond the download.

Scorecard1 real difference · 7 level
赤シート英単語帳:暗記カードで英検・TOEIC versus Kayi: the parameters behind the verdict, then further details
Parameter赤シート英単語帳:暗記カードで英検・TOEICKayi
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 6 days—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size27 MB12 MB
Age rating4+4+
DeveloperAtsushi Koyama杰康 梁

In-app purchases

None

赤シート英単語帳:暗記カードで英検・TOEIC

No in-app purchases

2 purchases

Kayi

Subscriptions2
  • Pro Monthly$1.991 Month
  • Pro Yearly$12.991 Year

Questions

Is 赤シート英単語帳:暗記カードで英検・TOEIC free?
赤シート英単語帳:暗記カードで英検・TOEIC is free to download, with no in-app purchases.
Is Kayi free?
Kayi is free to download, with in-app purchases available.
Do 赤シート英単語帳:暗記カードで英検・TOEIC or Kayi have ads?
Neither 赤シート英単語帳:暗記カードで英検・TOEIC nor Kayi shows ads.

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