lookin
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Description:
App for iOS view debugging
Type: Cask  |  Latest Version: 1.0.7@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: ios debugging developer-tools ui-inspection xcode mobile-development
Install: brew install --cask lookin
About:
Lookin is a native macOS application that enables real-time inspection and debugging of iOS app user interfaces. It allows developers to view and modify view hierarchies, inspect constraints, and analyze layout properties without needing to rebuild their application. The tool provides a visual interface for understanding complex UI structures and diagnosing rendering issues.
Key Features:
  • Real-time view hierarchy inspection
  • On-device UI modification and debugging
  • Constraint and layout analysis tools
  • 3D visualization of view layers
  • Xcode integration for seamless workflow
Use Cases:
  • Debugging complex Auto Layout issues in iOS apps
  • Inspecting and modifying UI elements during runtime
  • Analyzing view rendering performance bottlenecks
  • Collaborating on UI design implementation
Alternatives:
  • Reveal – More mature but paid alternative with similar functionality
  • Xcode View Debugger – Built-in but less feature-rich than Lookin's specialized toolset
  • FLEX – In-app debugging tool, requires code integration vs Lookin's external approach
Version History
Detected Version Rev Change Commit
Aug 5, 2025 2:20pm 1.0.7 0 VERSION_BUMP 8cc2cc29