--- title: "Source 3 — App Overview" url: https://marlvel.ai/intel-report/developer-tools/com-ytzong-viewsource category: Developer Tools developer: 永涛 宗 platforms: ios rating: 4.3 (10 ratings) pricing: paid report_level: overview generated: 2026-04-23 last_verified: "2026-04-23T07:19:22.293Z" --- > **Key Insight:** While the app provides a specialized utility for mobile web development, user feedback indicates significant inconsistency regarding its functionality and integration with Safari. | Metric | Value | |--------|-------| | Category | Developer Tools | | Rating | 4.3 ★ (10) | | Pricing | paid | | Platforms | iOS | | Latest Version (iOS) | 3.0.1 | | Developer | 永涛 宗 | ## What is Source 3? Source 3 is a Safari extension designed for web developers to inspect the HTML source code of any webpage directly within the browser. It features customizable syntax highlighting to improve readability and integrates via the iOS Safari Action menu. The app aims to streamline the debugging and reference process for mobile web development. ## Key Features - **Safari Extension Integration**: Allows users to access source code directly from the Safari Action menu while browsing. - **Syntax Highlighting**: Provides beautiful, customizable syntax highlighting for improved code readability. - **HTML Source Viewer**: Enables the viewing of raw HTML source code for any active webpage. ## Who is it for? Web developers and designers who need to inspect HTML source code on iOS devices. ## Links - [App Store](https://apps.apple.com/us/app/source-3/id921385542?uo=2) - [Full Intelligence Report](https://marlvel.ai/intel-report/developer-tools/com-ytzong-viewsource) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/developer-tools/com-ytzong-viewsource).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*