diff --git a/dotnet/Templates/Microsoft.iOS.Templates/ios/Main.cs b/dotnet/Templates/Microsoft.iOS.Templates/ios/Main.cs
index b3957cd6c3a6..52c9966e99e7 100644
--- a/dotnet/Templates/Microsoft.iOS.Templates/ios/Main.cs
+++ b/dotnet/Templates/Microsoft.iOS.Templates/ios/Main.cs
@@ -1,5 +1,12 @@
 using iOSApp1;
 
+#if DEBUG
+// Enable runtime checks to ensure some types are only used from the main (UI) thread
+UIApplication.CheckForIllegalCrossThreadCalls = true;
+// Enable runtime checks to ensure ObjC delegates and events (using their own delegates) are not mixed
+UIApplication.CheckForEventAndDelegateMismatches = true;
+#endif
+
 // This is the main entry point of the application.
 // If you want to use a different Application Delegate class from "AppDelegate"
 // you can specify it here.
diff --git a/src/AppKit/NSApplication.cs b/src/AppKit/NSApplication.cs
index f21eb5b06917..cd0176803db6 100644
--- a/src/AppKit/NSApplication.cs
+++ b/src/AppKit/NSApplication.cs
@@ -35,8 +35,14 @@
 
 namespace AppKit {
 	public partial class NSApplication : NSResponder {
+
+#if NET
+		public static bool CheckForIllegalCrossThreadCalls { get; set; }
+		public static bool CheckForEventAndDelegateMismatches { get; set; }
+#else
 		public static bool CheckForIllegalCrossThreadCalls = true;
 		public static bool CheckForEventAndDelegateMismatches = true;
+#endif
 
 #if !(XAMCORE_4_0 && NET)
 #if NET
diff --git a/src/UIKit/UIApplication.cs b/src/UIKit/UIApplication.cs
index 5f018c589ac3..e5383ad899d6 100644
--- a/src/UIKit/UIApplication.cs
+++ b/src/UIKit/UIApplication.cs
@@ -42,8 +42,13 @@ partial class UIApplication
 #endif
 	{
 		static Thread? mainThread;
+#if NET
+		public static bool CheckForIllegalCrossThreadCalls { get; set; }
+		public static bool CheckForEventAndDelegateMismatches { get; set; }
+#else
 		public static bool CheckForIllegalCrossThreadCalls = true;
 		public static bool CheckForEventAndDelegateMismatches = true;
+#endif
 
 #if !WATCH
 		// We link with __Internal here so that this function is interposable from third-party native libraries.