User installs extension -> Visits YouTube -> Clicks SubHub button -> Selects language -> Extension fetches subtitles from SubHub API -> Subtitles are overlaid on the video player.

Target users: YouTube viewers / Language learners

The analysis is based on static code analysis. The actual behavior of the SubHub service (e.g., whether it enforces paid limits) cannot be fully verified without runtime testing.

Monetization

No paid features detected

The extension code does not contain any logic for checking subscription status, processing payments, or gating features behind a paywall. It mentions 'free coupon' in the locale strings, suggesting the service might have a freemium model, but the extension itself does not implement paid feature checks or billing integrations.

Confidence: 90
Payment platform: --
Source: AI / High
Login required: Yes
Reason: The extension relies on the SubHub service (api.subhub.ai) for all subtitle generation. It fetches an auth token using a generated UID and checks for an authToken cookie from subhub.ai. The UI explicitly prompts users to 'Sign up' to use the service, and the session check determines whether to show 'Sign Up Now' or 'Visit Now'.

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、cookies

Publisher

Mellow Company

주식회사 멜로우컴퍼니

Email: [email protected]
Phone: --
Address: 광교중앙로 338 A동 607호 용인시, 경기도 16942 KR

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Permissions

Host access