diff --git a/iOS/app/MMMemory.xcodeproj/project.pbxproj b/iOS/app/MMMemory.xcodeproj/project.pbxproj
index 4fdbece..fdbb878 100644
--- a/iOS/app/MMMemory.xcodeproj/project.pbxproj
+++ b/iOS/app/MMMemory.xcodeproj/project.pbxproj
@@ -8,24 +8,41 @@
 
 /* Begin PBXBuildFile section */
 		1F083A14C69F20A6BA92A63E /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = F16A7DD61EF6CD4FB4E3DE25 /* AppDelegate.swift */; };
+		A6E529FBA0467549623E44A5 /* Main.Section16Buttons.swift in Sources */ = {isa = PBXBuildFile; fileRef = 032C8E87061765718F550E70 /* Main.Section16Buttons.swift */; };
+		AEDC5FB14A2EE027C2F7FDA7 /* Main.swift in Sources */ = {isa = PBXBuildFile; fileRef = CC87DC40D65BB2748668CE65 /* Main.swift */; };
 		B19B3998FA2BA651ACB1E53C /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = C1742EFC5A1E818780679340 /* Assets.xcassets */; };
 		CAFD870CA84084E45011CC23 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 4E32B0495E4BCEA4EE0508D4 /* LaunchScreen.storyboard */; };
+		D65ED8EB653B36E6C4094996 /* Main.VC.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6EAF8AC4A5A1BCE77350565E /* Main.VC.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		032C8E87061765718F550E70 /* Main.Section16Buttons.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Main.Section16Buttons.swift; sourceTree = "<group>"; };
 		4E32B0495E4BCEA4EE0508D4 /* LaunchScreen.storyboard */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; path = LaunchScreen.storyboard; sourceTree = "<group>"; };
+		6EAF8AC4A5A1BCE77350565E /* Main.VC.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Main.VC.swift; sourceTree = "<group>"; };
 		9D774FEE86833E8A0A74387C /* App.app */ = {isa = PBXFileReference; includeInIndex = 0; lastKnownFileType = wrapper.application; path = App.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		C1742EFC5A1E818780679340 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		CC87DC40D65BB2748668CE65 /* Main.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Main.swift; sourceTree = "<group>"; };
 		F16A7DD61EF6CD4FB4E3DE25 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXGroup section */
+		43F40869C11E8EE85952F2E9 /* Main */ = {
+			isa = PBXGroup;
+			children = (
+				032C8E87061765718F550E70 /* Main.Section16Buttons.swift */,
+				CC87DC40D65BB2748668CE65 /* Main.swift */,
+				6EAF8AC4A5A1BCE77350565E /* Main.VC.swift */,
+			);
+			path = Main;
+			sourceTree = "<group>";
+		};
 		667BC26EA8068A9FA707FC02 /* src */ = {
 			isa = PBXGroup;
 			children = (
 				F16A7DD61EF6CD4FB4E3DE25 /* AppDelegate.swift */,
 				C1742EFC5A1E818780679340 /* Assets.xcassets */,
 				4E32B0495E4BCEA4EE0508D4 /* LaunchScreen.storyboard */,
+				43F40869C11E8EE85952F2E9 /* Main */,
 			);
 			name = src;
 			path = ../src;
@@ -110,6 +127,9 @@
 			buildActionMask = 2147483647;
 			files = (
 				1F083A14C69F20A6BA92A63E /* AppDelegate.swift in Sources */,
+				A6E529FBA0467549623E44A5 /* Main.Section16Buttons.swift in Sources */,
+				D65ED8EB653B36E6C4094996 /* Main.VC.swift in Sources */,
+				AEDC5FB14A2EE027C2F7FDA7 /* Main.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/iOS/app/MMMemory.xcodeproj/project.xcworkspace/xcuserdata/mk.xcuserdatad/UserInterfaceState.xcuserstate b/iOS/app/MMMemory.xcodeproj/project.xcworkspace/xcuserdata/mk.xcuserdatad/UserInterfaceState.xcuserstate
index e886593..980e775 100644
Binary files a/iOS/app/MMMemory.xcodeproj/project.xcworkspace/xcuserdata/mk.xcuserdatad/UserInterfaceState.xcuserstate and b/iOS/app/MMMemory.xcodeproj/project.xcworkspace/xcuserdata/mk.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS/src/AppDelegate.swift b/iOS/src/AppDelegate.swift
index 405b089..c3f2d0a 100644
--- a/iOS/src/AppDelegate.swift
+++ b/iOS/src/AppDelegate.swift
@@ -10,21 +10,10 @@ extension AppDelegate {
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
-    let vc = UIViewController()
-    vc.view.backgroundColor = .white
     window = UIWindow(frame: UIScreen.main.bounds)
-    window?.rootViewController = vc
+    window?.rootViewController = Main.VC()
     window?.makeKeyAndVisible()
 
     return true
   }
 }
-
-extension AppDelegate {
-  private func setupMemory() {
-    /*
-    let w = Converter.World(converterModel)
-    converterS = Converter.Service(w)
-    */
-  }
-}
diff --git a/iOS/src/Main/Main.Section16Buttons.swift b/iOS/src/Main/Main.Section16Buttons.swift
new file mode 100644
index 0000000..486e506
--- /dev/null
+++ b/iOS/src/Main/Main.Section16Buttons.swift
@@ -0,0 +1,29 @@
+import UIKit
+
+// MARK: - Протоколы
+
+protocol MainSection16Buttons {
+}
+
+// MARK: - Реализация
+
+extension Main {
+  enum Section16Buttons {
+    static func setupCore(_ core: Main.VC) {
+      // Создаём 16 кнопок.
+      for i in 0..<16 {
+        let btn = UIButton()
+        core.buttons.append(btn)
+        btn.tag = i
+        //????btn.addTarget(self, action: #selector(selectButton), for: .touchUpInside)
+        core.view.addSubview(btn)
+      }
+      
+      // Расставляем их в сетке 4x4.
+      for btn in core.buttons {
+        btn.frame = CGRect(x: 0, y: btn.tag * 60, width: 50, height: 50)
+        btn.backgroundColor = .blue
+      }
+    }
+  }
+}
diff --git a/iOS/src/Main/Main.VC.swift b/iOS/src/Main/Main.VC.swift
new file mode 100644
index 0000000..8a3ae05
--- /dev/null
+++ b/iOS/src/Main/Main.VC.swift
@@ -0,0 +1,15 @@
+import UIKit
+
+extension Main {
+  class VC: UIViewController {
+    var buttons = [UIButton]()
+
+    override func viewDidLoad() {
+      super.viewDidLoad()
+
+      view.backgroundColor = .white
+
+      Main.Section16Buttons.setupCore(self)
+    }
+  }
+}
diff --git a/iOS/src/Main/Main.swift b/iOS/src/Main/Main.swift
new file mode 100644
index 0000000..ab14183
--- /dev/null
+++ b/iOS/src/Main/Main.swift
@@ -0,0 +1 @@
+enum Main { }