diff --git a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp.xcodeproj/project.pbxproj b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp.xcodeproj/project.pbxproj
index 5a2879eeaf7..1545b5ffa0b 100644
--- a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp.xcodeproj/project.pbxproj
+++ b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp.xcodeproj/project.pbxproj
@@ -3,29 +3,30 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 51;
+	objectVersion = 60;
 	objects = {
 
 /* Begin PBXBuildFile section */
-		9A07E0572541D1B50076D8F5 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 9A07E0562541D1B50076D8F5 /* GoogleService-Info.plist */; };
 		9AC7C27C2541C7E500F5DD80 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9AC7C27B2541C7E500F5DD80 /* AppDelegate.swift */; };
 		9AC7C27E2541C7E500F5DD80 /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9AC7C27D2541C7E500F5DD80 /* SceneDelegate.swift */; };
-		9AC7C2802541C7E500F5DD80 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9AC7C27F2541C7E500F5DD80 /* ViewController.swift */; };
-		9AC7C2832541C7E500F5DD80 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9AC7C2812541C7E500F5DD80 /* Main.storyboard */; };
 		9AC7C2852541C7E600F5DD80 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9AC7C2842541C7E600F5DD80 /* Assets.xcassets */; };
 		9AC7C2882541C7E600F5DD80 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9AC7C2862541C7E600F5DD80 /* LaunchScreen.storyboard */; };
+		EAD122EF2DB97E10004D64C9 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = EAD122EE2DB97E10004D64C9 /* GoogleService-Info.plist */; };
+		EAD122F12DB98BD0004D64C9 /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAD122F02DB98BCC004D64C9 /* ContentView.swift */; };
+		EAD122F32DB9920D004D64C9 /* AppCheckTestApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAD122F22DB99206004D64C9 /* AppCheckTestApp.swift */; };
+		EAD122F62DB9940E004D64C9 /* FirebaseAppCheck in Frameworks */ = {isa = PBXBuildFile; productRef = EAD122F52DB9940E004D64C9 /* FirebaseAppCheck */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
-		9A07E0562541D1B50076D8F5 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
 		9AC7C2782541C7E500F5DD80 /* FIRAppCheckTestApp.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = FIRAppCheckTestApp.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		9AC7C27B2541C7E500F5DD80 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		9AC7C27D2541C7E500F5DD80 /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
-		9AC7C27F2541C7E500F5DD80 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		9AC7C2822541C7E500F5DD80 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		9AC7C2842541C7E600F5DD80 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		9AC7C2872541C7E600F5DD80 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		9AC7C2892541C7E600F5DD80 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		EAD122EE2DB97E10004D64C9 /* GoogleService-Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = "GoogleService-Info.plist"; sourceTree = "<group>"; };
+		EAD122F02DB98BCC004D64C9 /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
+		EAD122F22DB99206004D64C9 /* AppCheckTestApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppCheckTestApp.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -33,25 +34,18 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				EAD122F62DB9940E004D64C9 /* FirebaseAppCheck in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
-		30221A668C12ED048788DFEB /* Pods */ = {
-			isa = PBXGroup;
-			children = (
-			);
-			path = Pods;
-			sourceTree = "<group>";
-		};
 		9AC7C26F2541C7E500F5DD80 = {
 			isa = PBXGroup;
 			children = (
 				9AC7C27A2541C7E500F5DD80 /* FIRAppCheckTestApp */,
 				9AC7C2792541C7E500F5DD80 /* Products */,
-				30221A668C12ED048788DFEB /* Pods */,
 			);
 			sourceTree = "<group>";
 		};
@@ -66,14 +60,14 @@
 		9AC7C27A2541C7E500F5DD80 /* FIRAppCheckTestApp */ = {
 			isa = PBXGroup;
 			children = (
+				EAD122EE2DB97E10004D64C9 /* GoogleService-Info.plist */,
 				9AC7C27B2541C7E500F5DD80 /* AppDelegate.swift */,
 				9AC7C27D2541C7E500F5DD80 /* SceneDelegate.swift */,
-				9AC7C27F2541C7E500F5DD80 /* ViewController.swift */,
-				9AC7C2812541C7E500F5DD80 /* Main.storyboard */,
+				EAD122F02DB98BCC004D64C9 /* ContentView.swift */,
+				EAD122F22DB99206004D64C9 /* AppCheckTestApp.swift */,
 				9AC7C2842541C7E600F5DD80 /* Assets.xcassets */,
 				9AC7C2862541C7E600F5DD80 /* LaunchScreen.storyboard */,
 				9AC7C2892541C7E600F5DD80 /* Info.plist */,
-				9A07E0562541D1B50076D8F5 /* GoogleService-Info.plist */,
 			);
 			path = FIRAppCheckTestApp;
 			sourceTree = "<group>";
@@ -121,6 +115,9 @@
 				Base,
 			);
 			mainGroup = 9AC7C26F2541C7E500F5DD80;
+			packageReferences = (
+				EAD122F42DB9940E004D64C9 /* XCLocalSwiftPackageReference "../../../../firebase-ios-sdk" */,
+			);
 			productRefGroup = 9AC7C2792541C7E500F5DD80 /* Products */;
 			projectDirPath = "";
 			projectRoot = "";
@@ -136,9 +133,8 @@
 			buildActionMask = 2147483647;
 			files = (
 				9AC7C2882541C7E600F5DD80 /* LaunchScreen.storyboard in Resources */,
+				EAD122EF2DB97E10004D64C9 /* GoogleService-Info.plist in Resources */,
 				9AC7C2852541C7E600F5DD80 /* Assets.xcassets in Resources */,
-				9AC7C2832541C7E500F5DD80 /* Main.storyboard in Resources */,
-				9A07E0572541D1B50076D8F5 /* GoogleService-Info.plist in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -149,8 +145,9 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				9AC7C2802541C7E500F5DD80 /* ViewController.swift in Sources */,
+				EAD122F32DB9920D004D64C9 /* AppCheckTestApp.swift in Sources */,
 				9AC7C27C2541C7E500F5DD80 /* AppDelegate.swift in Sources */,
+				EAD122F12DB98BD0004D64C9 /* ContentView.swift in Sources */,
 				9AC7C27E2541C7E500F5DD80 /* SceneDelegate.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -158,14 +155,6 @@
 /* End PBXSourcesBuildPhase section */
 
 /* Begin PBXVariantGroup section */
-		9AC7C2812541C7E500F5DD80 /* Main.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				9AC7C2822541C7E500F5DD80 /* Base */,
-			);
-			name = Main.storyboard;
-			sourceTree = "<group>";
-		};
 		9AC7C2862541C7E600F5DD80 /* LaunchScreen.storyboard */ = {
 			isa = PBXVariantGroup;
 			children = (
@@ -357,6 +346,20 @@
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
+
+/* Begin XCLocalSwiftPackageReference section */
+		EAD122F42DB9940E004D64C9 /* XCLocalSwiftPackageReference "../../../../firebase-ios-sdk" */ = {
+			isa = XCLocalSwiftPackageReference;
+			relativePath = "../../../../firebase-ios-sdk";
+		};
+/* End XCLocalSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		EAD122F52DB9940E004D64C9 /* FirebaseAppCheck */ = {
+			isa = XCSwiftPackageProductDependency;
+			productName = FirebaseAppCheck;
+		};
+/* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = 9AC7C2702541C7E500F5DD80 /* Project object */;
 }
diff --git a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/AppCheckTestApp.swift b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/AppCheckTestApp.swift
new file mode 100644
index 00000000000..ebc3ed12a83
--- /dev/null
+++ b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/AppCheckTestApp.swift
@@ -0,0 +1,27 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import FirebaseCore
+import SwiftUI
+
+@main
+struct FIRAppCheckTestApp: App {
+  @UIApplicationDelegateAdaptor private var appDelegate: AppDelegate
+
+  var body: some Scene {
+    WindowGroup {
+      ContentView()
+    }
+  }
+}
diff --git a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/AppDelegate.swift b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/AppDelegate.swift
index 661fd9fbf0b..d9b7a3ca49f 100644
--- a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/AppDelegate.swift
+++ b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/AppDelegate.swift
@@ -19,7 +19,6 @@ import UIKit
 import FirebaseAppCheck
 import FirebaseCore
 
-@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
   func application(_ application: UIApplication,
                    didFinishLaunchingWithOptions launchOptions: [UIApplication
diff --git a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/Base.lproj/Main.storyboard b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/Base.lproj/Main.storyboard
deleted file mode 100644
index 25a763858ec..00000000000
--- a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-        </scene>
-    </scenes>
-</document>
diff --git a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/ContentView.swift b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/ContentView.swift
new file mode 100644
index 00000000000..8c88c0ad358
--- /dev/null
+++ b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/ContentView.swift
@@ -0,0 +1,31 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import FirebaseCore
+import SwiftUI
+
+struct ContentView: View {
+  var body: some View {
+    VStack {
+      Image(systemName: "globe")
+        .imageScale(.large)
+      Text("Hello, world!")
+    }
+    .padding()
+  }
+}
+
+#Preview {
+  ContentView()
+}
diff --git a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/Info.plist b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/Info.plist
index 5b531f7b275..a8624ed469d 100644
--- a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/Info.plist
+++ b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/Info.plist
@@ -20,31 +20,10 @@
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
-	<key>UIApplicationSceneManifest</key>
-	<dict>
-		<key>UIApplicationSupportsMultipleScenes</key>
-		<false/>
-		<key>UISceneConfigurations</key>
-		<dict>
-			<key>UIWindowSceneSessionRoleApplication</key>
-			<array>
-				<dict>
-					<key>UISceneConfigurationName</key>
-					<string>Default Configuration</string>
-					<key>UISceneDelegateClassName</key>
-					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
-					<key>UISceneStoryboardFile</key>
-					<string>Main</string>
-				</dict>
-			</array>
-		</dict>
-	</dict>
 	<key>UIApplicationSupportsIndirectInputEvents</key>
 	<true/>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
-	<key>UIMainStoryboardFile</key>
-	<string>Main</string>
 	<key>UIRequiredDeviceCapabilities</key>
 	<array>
 		<string>armv7</string>
diff --git a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/ViewController.swift b/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/ViewController.swift
deleted file mode 100644
index 00eb3e713fe..00000000000
--- a/FirebaseAppCheck/Apps/FIRAppCheckTestApp/FIRAppCheckTestApp/ViewController.swift
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright 2020 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import UIKit
-
-class ViewController: UIViewController {
-  override func viewDidLoad() {
-    super.viewDidLoad()
-    // Do any additional setup after loading the view.
-  }
-}