diff --git a/FoxTube.Core/Controllers/StoreInterop.cs b/FoxTube.Core/Controllers/StoreInterop.cs
index 5997617..7fd706d 100644
--- a/FoxTube.Core/Controllers/StoreInterop.cs
+++ b/FoxTube.Core/Controllers/StoreInterop.cs
@@ -1,24 +1,38 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using System.Threading.Tasks;
+using Windows.Services.Store;
 
 namespace FoxTube.Core.Controllers
 {
     public static class StoreInterop
     {
-        public static bool AdsDisabled => false;
-        public static string GetProPrice()
+        public static bool AdsDisabled { get; private set; } = true;
+        public static string Price { get; private set; }
+
+        public static async Task UpdateStoreState()
         {
-            return "$4.99";
+            StoreProductQueryResult requset = await StoreContext.GetDefault().GetAssociatedStoreProductsAsync(new[] { "Durable" });
+
+            if (requset.Products["9NP1QK556625"].IsInUserCollection)
+                return;
+
+            Price = requset.Products["9NP1QK556625"].Price.FormattedPrice;
+            AdsDisabled = false;
         }
 
-        public static void PurchaseApp()
+        public static async Task<bool> PurchaseApp()
         {
-            if (!AdsDisabled)
-                // TODO: Add purchase validation
-                return;
+            StorePurchaseResult request = await StoreContext.GetDefault().RequestPurchaseAsync("9NP1QK556625");
+
+            switch (request.Status)
+            {
+                case StorePurchaseStatus.AlreadyPurchased:
+                case StorePurchaseStatus.Succeeded:
+                    AdsDisabled = true;
+                    return true;
+                default:
+                    return false;
+            }
         }
     }
 }
diff --git a/FoxTube.Core/FoxTube.Core.csproj b/FoxTube.Core/FoxTube.Core.csproj
index 0a7fd8e..b6c2244 100644
--- a/FoxTube.Core/FoxTube.Core.csproj
+++ b/FoxTube.Core/FoxTube.Core.csproj
@@ -123,6 +123,7 @@
   <ItemGroup>
     <Compile Include="Class1.cs" />
     <Compile Include="Controllers\StoreInterop.cs" />
+    <Compile Include="Helpers.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
@@ -130,6 +131,9 @@
       <Version>6.2.9</Version>
     </PackageReference>
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Models\" />
+  </ItemGroup>
   <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '14.0' ">
     <VisualStudioVersion>14.0</VisualStudioVersion>
   </PropertyGroup>
diff --git a/FoxTube.Core/Helpers.cs b/FoxTube.Core/Helpers.cs
new file mode 100644
index 0000000..e152ef2
--- /dev/null
+++ b/FoxTube.Core/Helpers.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FoxTube.Core
+{
+    public static class Helpers
+    {
+        public static Uri ToUri(this string str) =>
+            string.IsNullOrWhiteSpace(str) ? null : new Uri(str);
+    }
+}
diff --git a/FoxTube/App.xaml.cs b/FoxTube/App.xaml.cs
index 34722f4..060f634 100644
--- a/FoxTube/App.xaml.cs
+++ b/FoxTube/App.xaml.cs
@@ -1,4 +1,5 @@
-using Windows.ApplicationModel.Activation;
+using FoxTube.Core.Controllers;
+using Windows.ApplicationModel.Activation;
 using Windows.UI.Xaml;
 
 namespace FoxTube
@@ -8,8 +9,10 @@ namespace FoxTube
         public App() =>
             InitializeComponent();
 
-        protected override void OnLaunched(LaunchActivatedEventArgs e)
+        protected override async void OnLaunched(LaunchActivatedEventArgs e)
         {
+            await StoreInterop.UpdateStoreState();
+
             if (!e.PrelaunchActivated && Window.Current.Content == null)
                 Window.Current.Content = new MainPage();
             Window.Current.Activate();
diff --git a/FoxTube/Controls/ItemsGrid.xaml.cs b/FoxTube/Controls/ItemsGrid.xaml.cs
index 750ef16..7534877 100644
--- a/FoxTube/Controls/ItemsGrid.xaml.cs
+++ b/FoxTube/Controls/ItemsGrid.xaml.cs
@@ -1,4 +1,5 @@
 using FoxTube.Controls.Cards;
+using FoxTube.Core.Controllers;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
 
@@ -16,7 +17,7 @@ namespace FoxTube.Controls
         {
             empty.Opacity = 0;
 
-            if (ItemsCount % 5 == 0 && ItemsCount > 0)
+            if (!StoreInterop.AdsDisabled && ItemsCount % 5 == 0 && ItemsCount > 0)
                 Items.Add(new AdvertCard());
             Items.Add(item);
         }
diff --git a/FoxTube/Helpers/Utils.cs b/FoxTube/Helpers/Utils.cs
index f146322..cd6c1e5 100644
--- a/FoxTube/Helpers/Utils.cs
+++ b/FoxTube/Helpers/Utils.cs
@@ -1,5 +1,6 @@
 using Microsoft.Services.Store.Engagement;
 using System;
+using Windows.ApplicationModel.Core;
 
 namespace FoxTube.Helpers
 {
@@ -12,5 +13,11 @@ namespace FoxTube.Helpers
             if(HasFeedbackHub)
                 await StoreServicesFeedbackLauncher.GetDefault().LaunchAsync();
         }
+
+        public static void CloseApp() =>
+            CoreApplication.Exit();
+
+        public static async void RestartApp(string args = "") =>
+            await CoreApplication.RequestRestartAsync(args);
     }
 }
diff --git a/FoxTube/MainPage.xaml.cs b/FoxTube/MainPage.xaml.cs
index c25bacc..e4cfd45 100644
--- a/FoxTube/MainPage.xaml.cs
+++ b/FoxTube/MainPage.xaml.cs
@@ -5,6 +5,7 @@ using System;
 using Windows.ApplicationModel.Core;
 using Windows.Foundation.Metadata;
 using Windows.UI;
+using Windows.UI.Popups;
 using Windows.UI.ViewManagement;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
@@ -41,7 +42,7 @@ namespace FoxTube
             LeaveFeedback.Visibility = Utils.HasFeedbackHub ? Visibility.Visible : Visibility.Collapsed;
             RemoveAds.Visibility = StoreInterop.AdsDisabled ? Visibility.Collapsed : Visibility.Visible;
             if (!StoreInterop.AdsDisabled)
-                RemoveAds.Content += $" ({StoreInterop.GetProPrice()})";
+                RemoveAds.Content += $" ({StoreInterop.Price})";
         }
 
         void NavigationView_DisplayModeChanged(Microsoft.UI.Xaml.Controls.NavigationView sender, Microsoft.UI.Xaml.Controls.NavigationViewDisplayModeChangedEventArgs args)
@@ -88,8 +89,19 @@ namespace FoxTube
         void LeaveFeedback_Click(object sender, RoutedEventArgs e) =>
             Utils.OpenFeedbackHub();
 
-        void RemoveAds_Tapped(object sender, Windows.UI.Xaml.Input.TappedRoutedEventArgs e) =>
-            StoreInterop.PurchaseApp();
+        async void RemoveAds_Tapped(object sender, Windows.UI.Xaml.Input.TappedRoutedEventArgs e)
+        {
+            bool success = await StoreInterop.PurchaseApp();
+            if (success)
+            {
+                MessageDialog dialog = new MessageDialog("Thanks for purchasing full version of the app (＾∇＾) In order to complete changes we need to reopen it. But you can do it later (some elements may be broken)", "Thank you for your purchase!");
+                dialog.Commands.Add(new UICommand("Restart", (command) => Utils.RestartApp()));
+                dialog.Commands.Add(new UICommand("Later"));
+                dialog.CancelCommandIndex = 1;
+                dialog.DefaultCommandIndex = 0;
+                await dialog.ShowAsync();
+            }
+        }
 
         public static void Navigate(Type pageType)
         {