iOS Debugging Solutions

Igor AsharenkovDecember 12, 2023


In the fast-paced realm of mobile app development, possessing a rich toolset, especially for iOS app development, is indispensable. The efficiency of an Apple provided tools and employing 3rd party solutions for remote logging, network monitoring, performance analysis etc. can transform the debugging process. This comparison delves into leading iOS app debugging and introspection tools, offering insights to developers for enhancing their workflow and ensuring high-quality app delivery.

Proxyman -

A native macOS app focusing on network debugging by capturing, inspecting, and manipulating HTTP/HTTPS traffic.

Proxyman acts as a man-in-the-middle server, offering tools like multiple filters, a breakpoint tool, and scripting capabilities. It's particularly useful for developers who need detailed network diagnostics and the ability to modify traffic on the fly.


  • Captures, inspects, and manipulates HTTP/HTTPS traffic.
  • Features like multiple filters, GraphQL request debugging, and scripting tools.
  • Breakpoint tool for on-the-fly data modification.


  • Primarily a macOS app, may not be ideal for all development environments.
  • Focused on network, less on overall application monitoring.

Unique Features:

  • Map Local Tool for mocking responses with local files.

FB Flipper -

A debugging platform for iOS, Android, and React Native apps, known for its visual interface and extensibility.

Flipper provides a range of tools including a log viewer, layout inspector, and network inspector. Its plugin API allows developers to extend its functionality, making it a flexible tool for app data visualization suitable for specific cases of individual developer.


  • Supports iOS, Android, and React Native apps.
  • Provides tools like log viewer, layout inspector, and network inspector.
  • Extensible with a plugin API for custom functionality.


  • May require additional setup for plugin development.
  • More suited to front-end development.

Unique Features:

  • Platform for creating own plugins to visualize app data.

RocketSim -

A tool enhancing Xcode Simulators for iOS development, focusing on UI and usability testing.

RocketSim offers features like design comparison, grids, rulers, and professional recording capabilities. It's designed to streamline UI testing, offering quick actions for testing deeplinks, push notifications, and location simulation. It's particularly useful for developers focused on UI perfection and usability aspects.


  • Enhances Xcode Simulators with design comparison, grids, and rulers.
  • Features for quick actions, location simulation, and environment overrides.
  • Professional recording and screenshot capabilities.


  • Only available for iOS development.
  • Focuses more on UI and usability testing rather than deep code debugging.

Unique Features:

  • User Defaults Editor for real-time testing and quick actions for testing deeplinks and push notifications.

AppSpector -

A versatile debugging and introspection tool designed for both iOS and Android development, offering real-time application monitoring and detailed network inspection.

AppSpector stands out with features like live database and file system inspection, a user-friendly interface and dashboards. It excels in providing developers with insights into the inner workings of their apps, allowing for efficient debugging and performance optimization.


  • Real-time application monitoring.
  • Network inspection, including HTTP/HTTPS traffic.
  • User-friendly interface with cross-platform support for iOS and Android.
  • Custom event tracking for in-depth analysis.


  • Limited third-party integrations.
  • Steeper learning curve for advanced features.

Unique Features:

  • Live database and file system inspection.
  • Customizable dashboards.


Each tool offers unique features tailored to specific aspects of mobile app development. AppSpector is a comprehensive choice for real-time monitoring and network inspection, while Proxyman, FB Flipper, and RocketSim excel in network introspection, front-end development, and UI/UX testing, respectively. The choice depends on the specific needs of the project and the development environment.