“Vallum's interface is a little confusing, but it's a powerful app, and it comes at a great price... much cheaper than Little Snitch, despite sharing many of the same features.” MacUpdate · 4 years ago Comparison at a Glance macOS Built-in (ALF) Yes (Core focus) Inbound Filtering Rule Specificity Hostname, Port, Protocol, User App-level only Interface Icon-based, Menulet System Preferences Interaction Interactive, Silent, or "Jail" modes Mostly silent 5 Best Firewall Apps for Mac Owners in 2021 - MacUpdate
Reviews often compare Vallum to competitors like Little Snitch and Lulu, highlighting its balance of price and advanced features.
: Instantly block an app by dragging its icon from the Finder directly into Vallum.
: You can set rules that only activate when connected to specific WiFi hotspots or VPNs.
: Enhanced inter-process communication (IPC) between the main app, the Configurator, and the System Extension.
: The "Network Status" tab was replaced with a more compact Network Status bar at the bottom of the Configurator window, showing real-time WiFi SSID, gateways, and active interfaces.
: Better optimization for battery life, with many tasks running on Apple Silicon's efficiency cores. Core Capabilities
: Create broad rules that apply to all apps from a specific vendor (e.g., "Always allow all Microsoft apps"). User Perspectives