diff --git a/src/plugins/platforms/ios/qiosscreen.mm b/src/plugins/platforms/ios/qiosscreen.mm
index ce0dedc88d..beaaa3fbfc 100644
--- a/src/plugins/platforms/ios/qiosscreen.mm
+++ b/src/plugins/platforms/ios/qiosscreen.mm
@@ -15,6 +15,7 @@
 
 #include <QtGui/qpointingdevice.h>
 #include <QtGui/private/qwindow_p.h>
+#include <QtGui/private/qguiapplication_p.h>
 #include <private/qcoregraphics_p.h>
 #include <qpa/qwindowsysteminterface.h>
 
@@ -177,8 +178,16 @@ static QIOSScreen* qtPlatformScreenFor(UIScreen *uiScreen)
 {
     [super traitCollectionDidChange:previousTraitCollection];
 
+    Qt::Appearance appearance = self.traitCollection.userInterfaceStyle
+                              == UIUserInterfaceStyleDark
+                              ? Qt::Appearance::Dark
+                              : Qt::Appearance::Light;
+
     if (self.screen == UIScreen.mainScreen) {
-        if (previousTraitCollection.userInterfaceStyle != self.traitCollection.userInterfaceStyle) {
+        // Check if the current userInterfaceStyle reports a different appearance than
+        // the platformTheme's appearance. We might have set that one based on the UIScreen
+        if (previousTraitCollection.userInterfaceStyle != self.traitCollection.userInterfaceStyle
+            || QGuiApplicationPrivate::platformTheme()->appearance() != appearance) {
             QIOSTheme::initializeSystemPalette();
             QWindowSystemInterface::handleThemeChange<QWindowSystemInterface::SynchronousDelivery>();
         }
diff --git a/src/plugins/platforms/ios/qiostheme.mm b/src/plugins/platforms/ios/qiostheme.mm
index 62ba4d669b..408c59b2cb 100644
--- a/src/plugins/platforms/ios/qiostheme.mm
+++ b/src/plugins/platforms/ios/qiostheme.mm
@@ -134,13 +134,17 @@ QVariant QIOSTheme::themeHint(ThemeHint hint) const
 
 Qt::Appearance QIOSTheme::appearance() const
 {
+    UIUserInterfaceStyle appearance = UIUserInterfaceStyleUnspecified;
+    // Set the appearance based on the UIWindow
+    // Fallback to the UIScreen if no window is created yet
     if (UIWindow *window = qt_apple_sharedApplication().windows.lastObject) {
-        return window.traitCollection.userInterfaceStyle
-                == UIUserInterfaceStyleDark
-                ? Qt::Appearance::Dark
-                : Qt::Appearance::Light;
+        appearance = window.traitCollection.userInterfaceStyle;
+    } else {
+        appearance = UIScreen.mainScreen.traitCollection.userInterfaceStyle;
     }
-    return Qt::Appearance::Unknown;
+    return appearance == UIUserInterfaceStyleDark
+                       ? Qt::Appearance::Dark
+                       : Qt::Appearance::Light;
 }
 
 const QFont *QIOSTheme::font(Font type) const