Cooling signalNo paid features detectedMedium-risk permissions

ZEN Studyコメビュ

ZEN Study(元N予備校)の生放送授業において、コメント一覧を表示するChrome拡張 (ISC License)

Users612Current public install base

Rating5.0Store average score

Reviews4Public review volume

Manifest versionV3Extension platform version

7-day growth-8Net users gained this week

7-day growth rate-1.29%Relative weekly velocity

Preview

ZEN Studyコメビュ Media preview

1 assets

Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

Rating trend

30-day rating change

Track rating movement over time to see whether quality signals remain stable.

30-day rating change

Start

5.00

Latest

5.00

30-day rating change

0.00

2026年6月14日2026年6月20日

Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthDeclining

-16-2.55%

7-day growthDeclining

-8-1.29%

30-day growthDeclining

-35-5.41%

Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version2.3

ManifestV3

Size13.64KiB

Languages1日本語

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

ZEN Study(元N予備校)(http://www.nnn.ed.nico/home)の生放送授業において、コメント一覧を表示するChrome拡張です。

https://github.com/sifue/nyobi-commentviewer

以上のURLでソースコードが公開されています。サーバーなどへ余計なアクセスはせず、描画エリアに表示されたコメントだけが一覧に表示される仕様です。運営コメントも表示されるようになりました。(v1.1) コメントが表示できない問題に対応 (v1.3)新しい形式に対応(v1.4)運営コメント対応(v1.5)コメント欄の幅を拡大(v1.6) マニフェストv3に対応し、リスト表示に変更。(v2.0) 表示位置の切り替え機能を追加(v2.1) N予備コメビュからZEN Studyに命名変更。(v2.2) /courses/:course_id/chapters/:chapter_id/lessons/:lesson_id 形式のURLに対応(v2.3)

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

The Chrome Web Store shows 4 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★

4★

3★

2★

1★

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その本、図書館にあります。

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Ny0bi Tool

Accessibility

N予備校をダークモードにするChrome拡張機能。

Douga Getter

Workflow & Planning

拡張機能のアイコンをクリックするだけで、さまざまな動画サイトから簡単に動画をダウンロードできます。

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Education

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AI product read

Display a list of comments from live broadcast lectures on ZEN Study (formerly N予備校)

Live lecture comments on the ZEN Study platform are displayed within the video player canvas, making them difficult to read or review. This extension extracts and lists those comments in a dedicated panel.

1. User navigates to a ZEN Study live lesson page (nnn.ed.nico). 2. Extension background script detects the lesson URL and injects script.js. 3. script.js loads comment-viewer.js and comment-viewer.css into the page. 4. comment-viewer.js creates a comment panel UI and hooks the canvas rendering to capture comments as they appear. 5. Comments are displayed in a list alongside the video player.

Target users: Students and viewers of ZEN Study (N予備校) live broadcast lectures

The extension relies on hooking canvas rendering, which is a fragile approach that may break if the video player implementation changes. No API-level comment fetching is used.

Monetization

No paid features detected

The extension is open-source (ISC License) and free. There is no code related to payments, subscriptions, upgrades, or billing. The mention of 'ISC License' in the manifest description refers to the software license, not a paid plan. The destination service (ZEN Study) may have paid courses, but the extension itself does not gate features or handle payments.

Confidence: 95
Payment platform: --
Source: AI / High
Login required: Yes
Reason: The extension is a utility for ZEN Study (formerly N予備校), a live broadcast lecture platform. The extension injects scripts only on nnn.ed.nico lesson pages. Accessing these live lectures requires a user account on the ZEN Study platform. The extension itself has no login UI, but the destination service requires authentication to view content.

Permission risk

Medium-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：scripting、activeTab

Publisher

sifue

Independent publisher

Email: [email protected]
Phone: --
Address: --

Public contact fields are shown above. Developer portfolio pages are available on paid accounts.

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Permissions

Host access

ZEN Studyコメビュ

ZEN Studyコメビュ Media preview

30-day user trend

User Growth Over Time

30-day rating change

30-day rating change

Daily, weekly, and monthly growth

Version, languages, and crawl freshness

Product summary

Recent review snapshot

Similar and related extensions

その本、図書館にあります。

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