diff --git a/lib/main.dart b/lib/main.dart
index 5d6deb9..bfb6b1d 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -16,7 +16,8 @@ import 'package:http/http.dart' as http;
 import 'package:charts_flutter/flutter.dart' as charts;
 import 'package:flutter_markdown/flutter_markdown.dart';
 import 'package:flutter_custom_tabs/flutter_custom_tabs.dart';
-import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:hive/hive.dart';
+import 'package:hive_flutter/hive_flutter.dart';
 import 'package:device_info/device_info.dart';
 import 'package:in_app_purchase/in_app_purchase.dart';
 import 'plugins/dynamic_multi_column_layout.dart';
@@ -184,7 +185,8 @@ void main() async {
   };
 
   WidgetsFlutterBinding.ensureInitialized();
-  AppSettings().loadAppTheme();
+  await AppSettings().loadAppTheme();
+  await Hive.initFlutter();
 
   runZoned(() {
       runApp(new HAClientApp(
diff --git a/lib/managers/app_settings.dart b/lib/managers/app_settings.dart
index 3b7d030..41cb0f7 100644
--- a/lib/managers/app_settings.dart
+++ b/lib/managers/app_settings.dart
@@ -2,6 +2,10 @@ part of '../main.dart';
 
 class AppSettings {
 
+  static const DEFAULT_HIVE_BOX = 'defaultSettingsBox';
+
+  static const AUTH_TOKEN_KEY = 'llt';
+
   static final AppSettings _instance = AppSettings._internal();
 
   factory AppSettings() {
@@ -37,6 +41,7 @@ class AppSettings {
 
   Future load(bool full) async {
     if (full) {
+      await Hive.openBox(DEFAULT_HIVE_BOX);
       Logger.d('Loading settings...');
       SharedPreferences prefs = await SharedPreferences.getInstance();
       _domain = prefs.getString('hassio-domain');
@@ -52,18 +57,11 @@ class AppSettings {
       locationUpdateInterval = Duration(minutes: prefs.getInt("location-interval") ??
         defaultLocationUpdateIntervalMinutes);
       locationTrackingEnabled = prefs.getBool("location-enabled") ?? false;
-      Logger.d('Done. $_domain:$_port');
-      try {
-        final storage = new FlutterSecureStorage();
-        longLivedToken = await storage.read(key: "hacl_llt");
-        Logger.d("Long-lived token read successful");
-        oauthUrl = "$httpWebHost/auth/authorize?client_id=${Uri.encodeComponent(
-            'https://ha-client.app')}&redirect_uri=${Uri
-            .encodeComponent(
-            'https://ha-client.app/service/auth_callback.html')}";
-      } catch (e, stacktrace) {
-        Logger.e("Error reading secure storage: $e", stacktrace: stacktrace);
-      }
+      longLivedToken = Hive.box(DEFAULT_HIVE_BOX).get(AUTH_TOKEN_KEY);
+      oauthUrl = "$httpWebHost/auth/authorize?client_id=${Uri.encodeComponent(
+          'https://ha-client.app')}&redirect_uri=${Uri
+          .encodeComponent(
+          'https://ha-client.app/service/auth_callback.html')}";
     }
   }
 
@@ -103,25 +101,13 @@ class AppSettings {
   Future clearTokens() async {
     longLivedToken = null;
     tempToken = null;
-    try {
-      final storage = new FlutterSecureStorage();
-      await storage.delete(key: "hacl_llt");
-    } catch(e, stacktrace) {
-      Logger.e("Error clearing tokens: $e", stacktrace: stacktrace);
-    }
+    Hive.box(DEFAULT_HIVE_BOX).delete(AUTH_TOKEN_KEY);
   }
 
   Future saveLongLivedToken(token) async {
     longLivedToken = token;
     tempToken = null;
-    try {
-      final storage = new FlutterSecureStorage();
-      await storage.write(key: "hacl_llt", value: "$longLivedToken");
-      SharedPreferences prefs = await SharedPreferences.getInstance();
-      prefs.setBool("oauth-used", true);
-    } catch(e, stacktrace) {
-      Logger.e("Error saving long-lived token: $e", stacktrace: stacktrace);
-    }
+    Hive.box(DEFAULT_HIVE_BOX).put(AUTH_TOKEN_KEY, longLivedToken);
   }
 
   bool isNotConfigured() {
diff --git a/lib/pages/main/main.page.dart b/lib/pages/main/main.page.dart
index 1498615..a3a6b83 100644
--- a/lib/pages/main/main.page.dart
+++ b/lib/pages/main/main.page.dart
@@ -654,6 +654,7 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver, Ticker
   @override
   void dispose() {
     WidgetsBinding.instance.removeObserver(this);
+    Hive.close();
     //final flutterWebviewPlugin = new FlutterWebviewPlugin();
     //flutterWebviewPlugin.dispose();
     _viewsTabController?.dispose();
diff --git a/lib/popups.dart b/lib/popups.dart
index f367225..ce397b5 100644
--- a/lib/popups.dart
+++ b/lib/popups.dart
@@ -73,11 +73,9 @@ class TokenLoginPopup extends Popup {
                     padding: EdgeInsets.all(20),
                       child: TextFormField(
                       onSaved: (newValue) {
-                        final storage = new FlutterSecureStorage();
-                        storage.write(key: "hacl_llt", value: newValue.trim()).then((_) {
-                          Navigator.of(context).pop();
-                          eventBus.fire(SettingsChangedEvent(true));
-                        });
+                        Hive.box(AppSettings.DEFAULT_HIVE_BOX).put(AppSettings.AUTH_TOKEN_KEY, newValue.trim());
+                        Navigator.of(context).pop();
+                        eventBus.fire(SettingsChangedEvent(true));
                       },
                       decoration: InputDecoration(
                         hintText: 'Please enter long-lived token',
diff --git a/pubspec.yaml b/pubspec.yaml
index 9f37468..8640f96 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -23,7 +23,8 @@ dependencies:
   flutter_custom_tabs: ^0.6.0
   flutter_webview_plugin: ^0.3.10+1
   webview_flutter: ^0.3.19+7
-  flutter_secure_storage: ^3.3.3
+  hive: ^1.4.1+1
+  hive_flutter: ^0.3.0+2
   device_info: ^0.4.1+4
   geolocator: ^5.3.1
   workmanager: ^0.2.2