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