diff --git a/KkuMulKum.xcodeproj/project.pbxproj b/KkuMulKum.xcodeproj/project.pbxproj
index 76852aa9..5052995f 100644
--- a/KkuMulKum.xcodeproj/project.pbxproj
+++ b/KkuMulKum.xcodeproj/project.pbxproj
@@ -2216,8 +2216,8 @@
 				INFOPLIST_KEY_NSPhotoLibraryAddUsageDescription = "사진 라이브러리 접근 권한이 필요합니다.";
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchStoryboardName = LaunchScreen;
-				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
-				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				INFOPLIST_KEY_UISupportedInterfaceOrientations = UIInterfaceOrientationPortrait;
+				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown";
 				INFOPLIST_KEY_UIUserInterfaceStyle = Light;
 				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = (
@@ -2229,9 +2229,13 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				"PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*]" = KkumulkumDebug;
+				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
+				SUPPORTS_MACCATALYST = NO;
+				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
+				SUPPORTS_XR_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
+				TARGETED_DEVICE_FAMILY = 1;
 			};
 			name = Debug;
 		};
@@ -2253,8 +2257,8 @@
 				INFOPLIST_KEY_NSPhotoLibraryAddUsageDescription = "사진 라이브러리 접근 권한이 필요합니다.";
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				INFOPLIST_KEY_UILaunchStoryboardName = LaunchScreen;
-				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
-				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				INFOPLIST_KEY_UISupportedInterfaceOrientations = UIInterfaceOrientationPortrait;
+				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown";
 				INFOPLIST_KEY_UIUserInterfaceStyle = Light;
 				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = (
@@ -2267,9 +2271,13 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				"PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*]" = KkumulkumRelease;
+				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
+				SUPPORTS_MACCATALYST = NO;
+				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
+				SUPPORTS_XR_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
+				TARGETED_DEVICE_FAMILY = 1;
 			};
 			name = Release;
 		};
diff --git a/KkuMulKum/Application/AppDelegate.swift b/KkuMulKum/Application/AppDelegate.swift
index 85834222..5fbd3049 100644
--- a/KkuMulKum/Application/AppDelegate.swift
+++ b/KkuMulKum/Application/AppDelegate.swift
@@ -118,4 +118,11 @@ extension AppDelegate: MessagingDelegate, UNUserNotificationCenterDelegate {
             }
         }
     }
+    
+    func application(
+        _ application: UIApplication,
+        supportedInterfaceOrientationsFor window: UIWindow?
+    ) -> UIInterfaceOrientationMask {
+        return .portrait
+    }
 }