diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55206f1e..5d5434f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Globe+F (fn+F) fullscreen shortcut not working in SwiftUI lifecycle app
+
 ## [0.26.0] - 2026-03-29
 
 ### Added
diff --git a/TablePro/AppDelegate.swift b/TablePro/AppDelegate.swift
index 2ee34e2a..dca6b1ca 100644
--- a/TablePro/AppDelegate.swift
+++ b/TablePro/AppDelegate.swift
@@ -125,6 +125,25 @@ class AppDelegate: NSObject, NSApplicationDelegate {
             self, selector: #selector(handleDatabaseDidConnect),
             name: .databaseDidConnect, object: nil
         )
+
+        installFullscreenKeyMonitor()
+    }
+
+    // MARK: - Fullscreen Shortcut
+
+    /// macOS maps Globe+F (fn+F) to ⌃⌘F, but SwiftUI lifecycle apps don't
+    /// create a real NSMenuItem for "Enter Full Screen" — the shortcut shown
+    /// in the View menu is a visual hint only, with no key equivalent binding.
+    private var fullscreenKeyMonitor: Any?
+
+    private func installFullscreenKeyMonitor() {
+        fullscreenKeyMonitor = NSEvent.addLocalMonitorForEvents(matching: .keyDown) { event in
+            let mods = event.modifierFlags.intersection(.deviceIndependentFlagsMask)
+            guard mods == [.control, .command],
+                  event.keyCode == KeyCode.f.rawValue else { return event }
+            NSApp.keyWindow?.toggleFullScreen(nil)
+            return nil
+        }
     }
 
     func applicationDidBecomeActive(_ notification: Notification) {