diff --git a/src/core/settings.cpp b/src/core/settings.cpp
index c089466e3..f3fe7078b 100644
--- a/src/core/settings.cpp
+++ b/src/core/settings.cpp
@@ -2335,3 +2335,8 @@ std::string EmuFolders::GetOverridableResourcePath(std::string_view name)
 
   return upath;
 }
+
+bool EmuFolders::IsRunningInPortableMode()
+{
+  return (AppRoot == DataRoot);
+}
diff --git a/src/core/settings.h b/src/core/settings.h
index 70f054cf0..1a1b25db8 100644
--- a/src/core/settings.h
+++ b/src/core/settings.h
@@ -593,4 +593,7 @@ void Update();
 
 /// Returns the path to a resource file, allowing the user to override it.
 std::string GetOverridableResourcePath(std::string_view name);
+
+/// Returns true if the application is running in portable mode.
+bool IsRunningInPortableMode();
 } // namespace EmuFolders