Vallum 5.0.3 is a Mac application that monitors and controls app network connections. Released on March 18, 2025, it added new APIs for login items, updated its app database, and included minor bug fixes. It is a firewall tool that allows users to block or allow connections on an app-by-app basis. 

Key features of Vallum 5.0.3
  • Connection monitoring:

    Vallum can intercept and monitor app connections at the application layer. 

  • User control:

    Users can decide whether to allow or block connections, with a simple drag-and-drop interface for blocking apps. 

  • Rule-based control:

    Vallum allows for more advanced control through rules, such as creating rules that apply to all apps from a specific developer or are only active on certain Wi-Fi networks. 

  • Resource efficient:

    It is designed to be light and energy-efficient, with a low impact on battery life on Apple Silicon Macs. 

Technical details
  • Release date: March 18, 2025.
  • Version: 5.0.3.
  • Platform: macOS.
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