瞬間英作文 vs Eikata
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
瞬間英作文
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「英語は読めるのに、いざとなると言葉が出てこない…」 そんな悩みを抱えていませんか? 「英作リス」は、日本語の文を見て瞬時に英語で組み立てるトレーニングを通じて、あなたの頭の中に「英語を話す回路」を作るための学習アプリです。 ■ 主な特徴 ・中学英文法をベースにした全41セクション・410問を収録 ・日本語→英語の瞬間組立練習で、実践的なスピーキング力を鍛えます ・ライフスタイルに合わせて選べる「2つの練習モード」を搭載 ■ AI添削モード(ベータ版) マイクに向かって英語を話すと、AIがあなたの発話を直接添削します。 単なる正誤判定だけでなく、文法ミスやニュアンスの違いを具体的にフィードバック。ネイティブの先生がいなくても、一人で高度なスピーキング練習が可能です。 ■ シンプルモード 日本語の読み上げ後、カウントダウンで回答時間を設定。時間経過で英語の正解が表示され、自動で次の問題へ進みます。声を出せない通勤中の電車内や、ちょっとしたスキマ時間での学習に最適です。 ■ その他の便利な機能 ・出題順のシャッフル機能 ・苦手な問題をブックマークできるチェックリスト ・モチベーションを維持する学習進捗の記録 ※ AI添削モードはベータ版のため、回答が常に完璧ではない場合があります。 ※ AI添削モードをご利用の際は、マイクへのアクセス許可が必要です。
Eikata
Master essential English sentence patterns through a structured, age-based curriculum. Interactive quizzes and daily streak tracking aid retention, mimicking how native children acquire language.
- Age-based pattern progression
- Native-like acquisition order
- Fill-in-the-blank quizzes
- Daily streak tracking
- Recorded English audio
- Learn one pattern daily
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Eikata helps you learn English sentence patterns in the order native children acquire them. Master 168 essential English patterns across 4 stages: - Age 6: 30 basic patterns (permissions, gratitude, wants) - Age 8: 24 conversational patterns (opinions, suggestions, experiences) - Age 12: 42 advanced patterns (persuasion, nuance, perspective) - Teen: 72 sophisticated patterns (hypotheticals, formal writing) Features: - Recorded and device English audio for every pattern - Fill-in-the-blank quizzes for retention - Daily streak tracking - Learn one pattern a day at your own pace - Pattern Output Lab: write, save, and revisit your own sentence with today's pattern The first 30 patterns (Age 6 stage) are free. Eikata Pro (one-time purchase) unlocks all 168 patterns. Pro also unlocks unlimited saved Output Lab sentences (free users can save up to three). Purchase and Legal Information Pro features are unlocked with a one-time in-app purchase. This is not a subscription. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://starcrown.co.jp/privacy
Screenshots
Verdict
The clearest difference is update cadence: Eikata at daily against 瞬間英作文's every 4 weeks. Eikata also leads on iOS requirement (17.0 vs 26.2). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.
瞬間英作文 ships an update every 4 weeks, Eikata daily. The most recent releases landed on September 21, 2026 and September 20, 2026 respectively.
| Parameter | 瞬間英作文 | Eikata |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 4 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 74 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | COBALT LEAF | Starcrown Inc |
In-app purchases
瞬間英作文
No in-app purchases
Eikata
No in-app purchases








