Hey Product Hunt! 👋 I'm Matt, and I built GridView Pro to solve my own frustration: I trade on markets and needed to watch multiple data sources simultaneously - live odds, news feeds, economic calendars, trading dashboards. The problem: - Browser tabs = constant switching and losing context - Split screen = max 2 views - Existing solutions = either $200/year enterprise tools or clunky browser extension What I built: GridView Pro is a native Mac app that allows you to simultaneously view up to 4 windows in 1 browser screen. Custom and preset templates allow users to drag and drop, or simply place url into their own fitted grid. Each pane browses independently, and your layouts persist between sessions, allowing users to load up to 4 sites in just 1 click! Perfect for: - Traders monitoring multiple markets - Researchers comparing sources side-by-side - Social media managers tracking feeds - Developers watching dashboards + docs + logs - Anyone who needs "eyes on everything" Tech details: - Built in Swift with WKWebView - Native Mac performance (optimized for Apple Silicon) - All browsers - One-time $9.99 purchase (no subscription) **Available now:** gridviewpro.com I'm here all day to answer questions! What would YOU monitor in a 4-pane grid?