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App Store Apps > Education > ShadowMark
ShadowMark icon

ShadowMark

by RYUTA SHIMOGAUCHI · Education · Free
On the App Store since June 2026 · Data updated 2026-10-26

ShadowMark is made and published by RYUTA SHIMOGAUCHI. AppBrain is an independent app data site and isn't affiliated with RYUTA SHIMOGAUCHI. The app name, icon, screenshots and description belong to RYUTA SHIMOGAUCHI and are shown as published on the App Store.

AppBrain's verdict

Last updated
June 11, 2026
Official page on the App Store

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Releases

Updates seen on the App Store
Version
1.1
Launched
June 2026

No changelog data

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Technology

Found in the app by AppBrain
Price
Free
App size
3.02 MB
Content rating
Everyone

Technologies used by ShadowMark

About the app and developer

About ShadowMark

ShadowMark is an education app developed by RYUTA SHIMOGAUCHI.

User Ratings

The app has no ratings yet.

App Information

ShadowMark is freely available from the App Store. The app size is 3.02 MB. The latest version available is 1.1. The last update was on June 11, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since June 2026.

Developer information for RYUTA SHIMOGAUCHI

RYUTA SHIMOGAUCHI

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Store listing

By RYUTA SHIMOGAUCHI, from the App Store
ShadowMark Screenshot 1 of 7
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Screenshots by RYUTA SHIMOGAUCHI, from the the App Store listing
Description by RYUTA SHIMOGAUCHI Written by the developer, not by AppBrain. Click to read.
ShadowMark は、英語シャドーイングのための教材づくりから、音声変化の可視化、録音した発音の比較分析までを1つで行える学習アプリです。すべて端末内で完結し、アカウント登録は不要です。

■ 音声変化を「見える」教材に 英文を取り込み、リンキング、弱形、消失、同化、フラップ、ダークL、メモなどをテキスト上に直接アノテーションできます。本文を後から編集してもアノテーションは保たれます。

■ 教材音源から音声変化を自動検出 教材の音声を解析し、フラップやリンキングなどの候補を自動検出。本文に重ねてプレビューし、該当箇所の音声を聞きながら1件ずつ承認・棄却して、納得したものだけを反映できます。

■ 録音を教材と比較して、直すべき点が分かる 自分のシャドーイングを録音すると、教材音源と比較してリズム・抑揚・速さ・ポーズ・単語の正確さをスコア化し、具体的な改善アドバイスを表示します。 ・音量と声の高さの推移グラフ:教材のタイミングに合わせた補正表示で山と谷を直接比較。タップすればその位置から再生でき、単語の目盛りでどの語かも分かります ・メルスペクトログラムの見比べ ・アノテーション箇所ごとの発音チェック:フラップが弾けているかなどを判定し、教材と自分の録音を区間ごとに聞き比べられます

■ 練習を支えるプレーヤー 再生速度 0.1〜2.0倍(ピッチ維持)、A-Bループによる区間リピート、5秒戻し/5秒送り、教材を再生しながらの録音モードを備えています。

■ 続けるほど上達が見える 連続練習日数、録音回数、テイクごとのスコア推移をグラフで確認できます。

■ プライバシー 教材、音声、録音、アノテーション、分析結果はすべて端末内に保存されます。音声認識・音声分析も端末内で実行され、音声が外部に送信されることはありません。アノテーション済みテキストは画像またはPDFとして書き出せます。
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