diff --git a/src/app/views/marketplace/marketplace-compare.controller.coffee b/src/app/views/marketplace/marketplace-compare.controller.coffee
index 0bc9c8a1..44982351 100644
--- a/src/app/views/marketplace/marketplace-compare.controller.coffee
+++ b/src/app/views/marketplace/marketplace-compare.controller.coffee
@@ -1,9 +1,16 @@
 angular.module 'mnoEnterpriseAngular'
-  .controller('DashboardMarketplaceCompareCtrl', ($scope, $stateParams, $state,
-    MnoeMarketplace, PRICING_CONFIG) ->
+  .controller('DashboardMarketplaceCompareCtrl', ($q, $scope, $stateParams, $state,
+    MnoeMarketplace, $uibModal, MnoeOrganizations, MnoeCurrentUser, MnoeAppInstances, MnoErrorsHandler, REVIEWS_CONFIG, PRICING_CONFIG) ->
 
       vm = this
 
+      vm.app = {}
+      # The already installed app instance of the app, if any
+      vm.appInstance = null
+      # An already installed app, conflicting with the app because it contains a common subcategory
+      # that is not multi instantiable, if any
+      vm.conflictingApp = null
+
       vm.isPriceShown = PRICING_CONFIG && PRICING_CONFIG.enabled
 
       #====================================
@@ -14,6 +21,49 @@ angular.module 'mnoEnterpriseAngular'
       currency = (PRICING_CONFIG && PRICING_CONFIG.currency) || 'AUD'
       vm.pricing_plans = [currency] || 'AUD' || 'default'
 
+      vm.appInstallationStatus = () ->
+        if vm.appInstance
+          if vm.app.multi_instantiable
+            "INSTALLABLE"
+          else
+            if vm.app.app_nid != 'office-365' && vm.app.stack == 'connector' && !vm.app.oauth_keys_valid
+              "INSTALLED_CONNECT"
+            else
+              "INSTALLED_LAUNCH"
+        else
+          if vm.conflictingApp
+            "CONFLICT"
+          else
+            "INSTALLABLE"
+
+      vm.provisionApp = () ->
+        vm.isLoadingButton = true
+        MnoeAppInstances.clearCache()
+
+        # Get the authorization status for the current organization
+        if MnoeOrganizations.role.atLeastPowerUser(vm.user_role)
+          purchasePromise = MnoeOrganizations.purchaseApp(vm.app, MnoeOrganizations.selectedId)
+        else  # Open a modal to change the organization
+          purchasePromise = openChooseOrgaModal().result
+
+        purchasePromise.then(
+          ->
+            $state.go('home.impac')
+
+            switch vm.app.stack
+              when 'cloud' then displayLaunchToastr(vm.app)
+              when 'cube' then displayLaunchToastr(vm.app)
+              when 'connector'
+                if vm.app.nid == 'office-365'
+                  # Office 365 must display 'Launch'
+                  displayLaunchToastr(vm.app)
+                else
+                  displayConnectToastr(vm.app)
+          (error) ->
+            toastr.error(vm.app.name + " has not been added, please try again.")
+            MnoErrorsHandler.processServerError(error)
+        ).finally(-> vm.isLoadingButton = false)
+
       #====================================
       # Calls
       #====================================
diff --git a/src/app/views/marketplace/marketplace-compare.html b/src/app/views/marketplace/marketplace-compare.html
index 849a975d..04e374c5 100644
--- a/src/app/views/marketplace/marketplace-compare.html
+++ b/src/app/views/marketplace/marketplace-compare.html
@@ -62,7 +62,25 @@ <h1>Comparison</h1>
             </tr>
             <tr class="text-center">
               <th></th>
-              <td ng-repeat="app in vm.apps | filter:{is_compare: true } | limitTo:4"><button class="btn btn-warning btn-lg">Buy now!</button></td>
+              <td ng-repeat="app in vm.apps | filter:{is_compare: true } | limitTo:4">
+                <div ng-switch on="vm.appInstallationStatus()">
+                    <div ng-switch-when="CONFLICT" class="message">
+                      <i class="fa fa-exclamation-triangle"></i>
+                      {{ 'mno_enterprise.templates.dashboard.marketplace.show.conflicting_app' | translate }}
+                      <a ui-sref="home.marketplace.app({appId: vm.conflictingApp.id})">{{vm.conflictingApp.name}}</a>
+                    </div>
+                    <button ng-switch-when="INSTALLABLE" ng-click="vm.provisionApp()" ng-disabled="vm.isLoadingButton" class="btn btn-warning btn-lg">
+                      <span ng-show="vm.isLoadingButton"><i class="fa fa-spinner fa-pulse"></i>&nbsp;</span>
+                      {{ 'mno_enterprise.templates.dashboard.marketplace.show.start_app' | translate }}
+                    </button>
+                    <button ng-switch-when="INSTALLED_LAUNCH" ng-click="vm.launchAppInstance()" class="btn btn-warning btn-lg">
+                      {{ 'mno_enterprise.templates.dashboard.marketplace.show.launch_app' | translate }}
+                    </button>
+                    <button ng-switch-when="INSTALLED_CONNECT" ng-click="vm.connectAppInstance()" class="btn btn-warning btn-lg">
+                      {{ 'mno_enterprise.templates.dashboard.marketplace.show.connect_app' | translate }}
+                    </button>
+                </div>
+              </td>
             </tr>
 
           </table>