STUDY4

STUDY4 Extension

Users10K

Rating4.3

Reviews14

Manifest versionV3

7-day growth0

7-day growth rate0%

Preview

STUDY4 Media preview

3 assets

Trend

30-day user trend

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User Growth Over Time

Rating trend

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30-day rating change

Start

4.29

Latest

4.29

30-day rating change

0.00

2026年5月29日2026年6月4日

Growth overview

Daily, weekly, and monthly growth

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1-day growthFlat

00%

7-day growthFlat

00%

30-day growthFlat

00%

Technical snapshot

Version, languages, and crawl freshness

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Version0.5

ManifestV3

Size239KiB

Languages1Tiếng Việt

Published--

Store updated--

Last crawled--

Overview

Product summary

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English – Vietnamese / English – English / English example sentences Instant Word Translation Extension. Save flashcards instantly and later review on https://study4.com/flashcards/

STUDY4 Extension giúp bạn dễ dàng tra cứu nghĩa Anh-Anh, Anh-Việt và các câu ví dụ ngay trên website; sau đó bạn có thể tạo thẻ từ (flashcards) để ôn tập theo phương pháp spaced repetition trên website study4.com.

Reviews

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The Chrome Web Store shows 14 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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AI product read

Instant word translation and flashcard creation for English learners, with dictionary lookup across multiple sources and flashcard sync to study4.com

Helps English (especially Vietnamese) learners quickly look up word definitions, example sentences, and synonyms while browsing any website, then save words as flashcards for spaced repetition review

1. User browses any website and selects a word. 2. Extension injects a popup/tooltip showing word definitions from multiple dictionaries (Eng-Eng, Eng-Viet, examples). 3. User can listen to pronunciation audio. 4. User clicks the '+' button to save the word as a flashcard via an embedded study4.com iframe. 5. Saved flashcards can be reviewed later on study4.com/flashcards/ using spaced repetition.

Target users: English learners (especially Vietnamese speakers) / Students preparing for English exams (TOEFL, IELTS, etc.) / Users of the study4.com platform

All JS source files are minified (webpack bundles), making it difficult to trace exact login/auth and payment logic within the extension
The extension's core UI is loaded via iframe from study4.com, so key functionality and any auth/paywall behavior lives on the server side and cannot be inspected from the extension source alone
Cannot confirm whether study4.com requires login or has paid tiers without accessing the live service

Monetization

Unknown

No monetization details are available yet.

Confidence: 0
Payment platform: --
Source: None / Medium
Login required: Yes
Reason: The extension's popup UI loads an iframe from https://study4.com/extension/ (popup.html line 1), and the flashcard-saving workflow embeds https://study4.com/extension/add-flashcards/ in an iframe (frame.html line 1). These are destination-service pages served by study4.com. The store description says users can 'save flashcards instantly and later review on https://study4.com/flashcards/', which implies persistent user-specific data stored server-side. No login UI, cookie, session, or account handling exists in the extension source code itself—authentication, if needed, would occur within the embedded study4.com pages. Basic word lookup uses third-party dictionary APIs (Cambridge, Glosbe, Laban, etc.) and likely works without login.

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：storage

Publisher

STUDY4

Email: [email protected]
Phone: +84963695525
Address: Số 15, Ngõ 208, Giải Phóng, Thanh Xuân Hà Nội, Hà Nội 100000 VN

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Permissions

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