User opens extension on any English webpage → sentences are automatically chunked and displayed with indentation → unknown words are underlined with hover definitions → user can manually chunk sentences → vocabulary is tracked and managed → optional AI analysis with user's own API key

Target users: Chinese English learners / IELTS/TOEFL test takers / Professionals reading English content

Some keyword matches for 'pro', 'premium', 'auth' were false positives from dictionary data (e.g., 'protest', 'premium' as vocabulary entries)
API key configuration is user-managed, not extension-managed
No direct evidence of paid features in code or UI

Monetization

No paid features detected

Core sentence chunking and dictionary features are free. AI deep analysis is optional and requires user to provide their own API key (Gemini, OpenAI, DeepSeek, etc.) - no billing or subscription handled by extension. No payment UI, billing APIs, or upgrade gates found.

Confidence: 90
Payment platform: --
Source: AI / High
Login required: No
Reason: Extension explicitly states '不需要注册登录' (no registration/login required) in store description. Code uses chrome.storage.sync/local for data persistence without any authentication flow. API keys are user-provided (Gemini, OpenAI, etc.) but not managed by extension vendor.

Permission risk

High-risk permissions

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

扩展能力较强：storage、activeTab
主机权限覆盖范围较宽

Publisher

刘小宇

Independent publisher

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

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Permissions

Host access