diff --git a/module/instance/control.php b/module/instance/control.php
index 2220240464..f354aeae8f 100644
--- a/module/instance/control.php
+++ b/module/instance/control.php
@@ -366,21 +366,6 @@ class instance extends control
         return $this->send($response);
     }
 
-    /**
-     * 自定义安装应用。
-     * Install app by custom settings.
-     *
-     * @param  int    $id
-     * @access public
-     * @return void
-     */
-    public function customInstall(int $id)
-    {
-        // Disable custom installation in version 1.0.
-        $storeUrl = $this->createLink('store', 'appview', "id=$id");
-        return js::execute("window.parent.location.href='{$storeUrl}';");
-    }
-
     /**
      * 安装应用。
      * Install app.
diff --git a/module/instance/model.php b/module/instance/model.php
index d925533ed3..3aa60e0be6 100644
--- a/module/instance/model.php
+++ b/module/instance/model.php
@@ -1619,58 +1619,6 @@ class InstanceModel extends model
         return $newList;
     }
 
-    /*
-     * Get instance switcher.
-     *
-     * @param  object  $instance
-     * @access public
-     * @return string
-     */
-    public function getSwitcher($instance)
-    {
-        $instanceLink = helper::createLink('instance', 'view', "id=$instance->id");
-
-        $output  = "<div class='btn-group header-btn'>";
-        $output .= html::a($instanceLink, $instance->appName, '', 'class="btn"');
-        $output .= "</div>";
-
-        return $output;
-    }
-
-    /**
-     * Get switcher of custom installation page of store.
-     *
-     * @param  object $app
-     * @access public
-     * @return array
-     */
-    public function getInstallSwitcher($app)
-    {
-        $output  = $this->loadModel('store')->getAppViewSwitcher($app);
-        $output .= "<div class='btn-group header-btn'>";
-        $output .= html::a(helper::createLink('instance', 'install', "id=$app->id"), $this->lang->instance->installApp, '', 'class="btn"');
-        $output .= "</div>";
-
-        return $output;
-    }
-
-    /**
-     * Get switcher of custom installation page of store.
-     *
-     * @param  object $app
-     * @access public
-     * @return array
-     */
-    public function getCustomInstallSwitcher($app)
-    {
-        $output  = $this->loadModel('store')->getAppViewSwitcher($app);
-        $output .= "<div class='btn-group header-btn'>";
-        $output .= html::a(helper::createLink('instance', 'custominstall', "id=$app->id"), $this->lang->instance->customInstall, '', 'class="btn"');
-        $output .= "</div>";
-
-        return $output;
-    }
-
     /**
      * Get senior app list. The instance can be switched to senior App.
      *