diff --git a/Covid19Radar/Covid19Radar/Resources/AppResources.Designer.cs b/Covid19Radar/Covid19Radar/Resources/AppResources.Designer.cs
index 7cd1f73ac..3a96e89bd 100644
--- a/Covid19Radar/Covid19Radar/Resources/AppResources.Designer.cs
+++ b/Covid19Radar/Covid19Radar/Resources/AppResources.Designer.cs
@@ -1883,6 +1883,12 @@ public static string InqueryBetaViaGitHub {
             }
         }
         
+        public static string InqueryBetaViaGitHubInstallStable {
+            get {
+                return ResourceManager.GetString("InqueryBetaViaGitHubInstallStable", resourceCulture);
+            }
+        }
+        
         public static string Beta_Splash_WelcomeBeta {
             get {
                 return ResourceManager.GetString("Beta_Splash_WelcomeBeta", resourceCulture);
diff --git a/Covid19Radar/Covid19Radar/Resources/AppResources.ja.resx b/Covid19Radar/Covid19Radar/Resources/AppResources.ja.resx
index 3e3909e18..fc0d415fa 100644
--- a/Covid19Radar/Covid19Radar/Resources/AppResources.ja.resx
+++ b/Covid19Radar/Covid19Radar/Resources/AppResources.ja.resx
@@ -1225,6 +1225,10 @@
     <value>GitHubを開く</value>
     <comment>GitHubを開く</comment>
   </data>
+  <data name="InqueryBetaViaGitHubInstallStable" xml:space="preserve">
+    <value>安定版をインストール</value>
+    <comment>安定版をインストール</comment>
+  </data>
 
   <data name="Beta_Splash_WelcomeBeta" xml:space="preserve">
     <value>COCOA(Beta)へようこそ！</value>
diff --git a/Covid19Radar/Covid19Radar/Resources/AppResources.resx b/Covid19Radar/Covid19Radar/Resources/AppResources.resx
index 932c9697d..809ba9701 100644
--- a/Covid19Radar/Covid19Radar/Resources/AppResources.resx
+++ b/Covid19Radar/Covid19Radar/Resources/AppResources.resx
@@ -1335,6 +1335,10 @@ Note: this app does not collect users’ location information.</value>
     <value>Open GitHub</value>
     <comment>GitHubを開く</comment>
   </data>
+  <data name="InqueryBetaViaGitHubInstallStable" xml:space="preserve">
+    <value>Use Stable veriosn</value>
+    <comment>安定版をインストール</comment>
+  </data>
 
   <data name="Beta_Splash_WelcomeBeta" xml:space="preserve">
     <value>Welcome COCOA(Beta)!!</value>
@@ -1365,7 +1369,7 @@ Note: this app does not collect users’ location information.</value>
     <comment>COCOA(Beta)を利用する</comment>
   </data>
   <data name="Beta_Splash_InstallStable" xml:space="preserve">
-    <value>Use Stable veriosn.</value>
+    <value>Use Stable veriosn</value>
     <comment>安定版をインストール</comment>
   </data>
 </root>
diff --git a/Covid19Radar/Covid19Radar/ViewModels/HelpPage/InqueryPageViewModel.cs b/Covid19Radar/Covid19Radar/ViewModels/HelpPage/InqueryPageViewModel.cs
index 5e0d93aee..944a85ee7 100644
--- a/Covid19Radar/Covid19Radar/ViewModels/HelpPage/InqueryPageViewModel.cs
+++ b/Covid19Radar/Covid19Radar/ViewModels/HelpPage/InqueryPageViewModel.cs
@@ -5,6 +5,7 @@
 using System;
 using System.Threading.Tasks;
 using Covid19Radar.Resources;
+using Covid19Radar.Services;
 using Covid19Radar.Services.Logs;
 using Covid19Radar.Views;
 using Prism.Navigation;
@@ -16,14 +17,20 @@ namespace Covid19Radar.ViewModels
     public class InqueryPageViewModel : ViewModelBase
     {
         private readonly ILoggerService loggerService;
+        private readonly IEssentialsService essentialService;
 
         public Func<string, BrowserLaunchMode, Task> BrowserOpenAsync = Browser.OpenAsync;
         public Func<string, string, string[], Task> ComposeEmailAsync { get; set; } = Email.ComposeAsync;
 
-        public InqueryPageViewModel(INavigationService navigationService, ILoggerService loggerService) : base(navigationService)
+        public InqueryPageViewModel(
+            INavigationService navigationService,
+            ILoggerService loggerService,
+            IEssentialsService eseentialService
+            ) : base(navigationService)
         {
             Title = AppResources.InqueryPageTitle;
             this.loggerService = loggerService;
+            this.essentialService = eseentialService;
         }
 
         public Command OpenGitHub => new Command(async () =>
@@ -32,6 +39,16 @@ public InqueryPageViewModel(INavigationService navigationService, ILoggerService
             await BrowserOpenAsync(url, BrowserLaunchMode.External);
         });
 
+        public Command OnClickUseStable => new Command(async () =>
+        {
+            loggerService.StartMethod();
+
+            var url = essentialService.StoreUrl;
+            await BrowserOpenAsync(url, BrowserLaunchMode.External);
+
+            loggerService.EndMethod();
+        });
+
         public Command OnClickQuestionCommand => new Command(async () =>
         {
             loggerService.StartMethod();
diff --git a/Covid19Radar/Covid19Radar/Views/HelpPage/InqueryPage.xaml b/Covid19Radar/Covid19Radar/Views/HelpPage/InqueryPage.xaml
index 2b996d79e..c209da0cb 100644
--- a/Covid19Radar/Covid19Radar/Views/HelpPage/InqueryPage.xaml
+++ b/Covid19Radar/Covid19Radar/Views/HelpPage/InqueryPage.xaml
@@ -67,6 +67,15 @@
                 Style="{StaticResource DefaultButton}"
                 Text="{x:Static resources:AppResources.InqueryBetaViaGitHub}" />
 
+            <Button
+                AutomationProperties.IsInAccessibleTree="True"
+                TabIndex="7"
+                Margin="0,10,0,10"
+                Command="{Binding Path=OnClickUseStable}"
+                Style="{StaticResource DefaultButton}"
+                Text="{x:Static resources:AppResources.InqueryBetaViaGitHubInstallStable}"
+                />
+
             <BoxView Style="{StaticResource DefaultLineStyle}" />
 
         </StackLayout>
diff --git a/Covid19Radar/Tests/Covid19Radar.UnitTests/ViewModels/HelpPage/InqueryPageViewModelTests.cs b/Covid19Radar/Tests/Covid19Radar.UnitTests/ViewModels/HelpPage/InqueryPageViewModelTests.cs
index b95cf2ebe..e02f3149a 100644
--- a/Covid19Radar/Tests/Covid19Radar.UnitTests/ViewModels/HelpPage/InqueryPageViewModelTests.cs
+++ b/Covid19Radar/Tests/Covid19Radar.UnitTests/ViewModels/HelpPage/InqueryPageViewModelTests.cs
@@ -4,6 +4,7 @@
 
 using System;
 using System.Threading.Tasks;
+using Covid19Radar.Services;
 using Covid19Radar.Services.Logs;
 using Covid19Radar.ViewModels;
 using Moq;
@@ -18,6 +19,7 @@ public class InqueryPageViewModelTests
         private readonly MockRepository mockRepository;
         private readonly Mock<INavigationService> mockNavigationService;
         private readonly Mock<ILoggerService> mockLoggerService;
+        private readonly Mock<IEssentialsService> mockEssentialsService;
 
 
         public InqueryPageViewModelTests()
@@ -25,13 +27,16 @@ public InqueryPageViewModelTests()
             mockRepository = new MockRepository(MockBehavior.Default);
             mockNavigationService = mockRepository.Create<INavigationService>();
             mockLoggerService = mockRepository.Create<ILoggerService>();
+            mockEssentialsService = mockRepository.Create<IEssentialsService>();
         }
 
         private InqueryPageViewModel CreateViewModel()
         {
             var vm = new InqueryPageViewModel(
                 mockNavigationService.Object,
-                mockLoggerService.Object);
+                mockLoggerService.Object,
+                mockEssentialsService.Object
+                );
             return vm;
         }