diff --git a/lib/home_assistant.class.dart b/lib/home_assistant.class.dart
index b2e269b..274c709 100644
--- a/lib/home_assistant.class.dart
+++ b/lib/home_assistant.class.dart
@@ -107,6 +107,7 @@ class HomeAssistant {
       registrationData.addAll({
         "app_id": "ha_client",
         "app_name": "$appName",
+        "os_name": Device().osName,
         "supports_encryption": false,
       });
       Connection().sendHTTPPost(
diff --git a/lib/main.dart b/lib/main.dart
index 9e471ac..9e8e39a 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -22,6 +22,7 @@ import 'package:flutter_webview_plugin/flutter_webview_plugin.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:device_info/device_info.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
+import 'package:in_app_purchase/in_app_purchase.dart';
 
 part 'entity_class/const.dart';
 part 'entity_class/entity.class.dart';
@@ -175,6 +176,7 @@ class MainPage extends StatefulWidget {
 
 class _MainPageState extends State<MainPage> with WidgetsBindingObserver, TickerProviderStateMixin {
 
+  StreamSubscription<List<PurchaseDetails>> _subscription;
   StreamSubscription _stateSubscription;
   StreamSubscription _settingsSubscription;
   StreamSubscription _serviceCallSubscription;
@@ -188,6 +190,11 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver, Ticker
 
   @override
   void initState() {
+    final Stream purchaseUpdates =
+        InAppPurchaseConnection.instance.purchaseUpdatedStream;
+    _subscription = purchaseUpdates.listen((purchases) {
+      _handlePurchaseUpdates(purchases);
+    });
     super.initState();
     WidgetsBinding.instance.addObserver(this);
 
@@ -294,6 +301,10 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver, Ticker
       _quickLoad();
     }
   }
+  
+  void _handlePurchaseUpdates(purchases) {
+    Logger.d('Handling purchases...');
+  }
 
   Future _subscribe() {
     Completer completer = Completer();
diff --git a/pubspec.lock b/pubspec.lock
index 8fb45c7..1dc86a9 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -186,6 +186,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.4"
+  in_app_purchase:
+    dependency: "direct main"
+    description:
+      name: in_app_purchase
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.1"
   intl:
     dependency: transitive
     description:
@@ -193,6 +200,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.15.8"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.0"
   logging:
     dependency: transitive
     description:
@@ -379,7 +393,7 @@ packages:
       name: xml
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.2.5"
+    version: "3.5.0"
   yaml:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 02f3bed..b940c6e 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -18,6 +18,7 @@ dependencies:
   date_format: any
   charts_flutter: any
   flutter_markdown: any
+  in_app_purchase: ^0.2.1
 #  flutter_svg: ^0.10.3
   flutter_custom_tabs: ^0.6.0
   firebase_messaging: ^4.0.0+1