diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 3fbe559..f19657a 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -12,6 +12,8 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="28"/> <!-- Only required on SDK <= 28 -->
     <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM"/> <!-- To reschedule the websocket retry -->
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/> <!-- As of Android 13, we need to ask for permission to post notifications -->
+    <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS"
+        tools:ignore="ProtectedPermissions" />
 
     <!--
         Permission REQUEST_INSTALL_PACKAGES (F-Droid only!):
diff --git a/app/src/main/java/io/heckel/ntfy/service/SubscriberService.kt b/app/src/main/java/io/heckel/ntfy/service/SubscriberService.kt
index a70acf0..549267a 100644
--- a/app/src/main/java/io/heckel/ntfy/service/SubscriberService.kt
+++ b/app/src/main/java/io/heckel/ntfy/service/SubscriberService.kt
@@ -8,6 +8,7 @@ import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
 import android.os.SystemClock
+import android.provider.Settings
 import androidx.core.app.NotificationCompat
 import androidx.core.content.ContextCompat
 import androidx.preference.PreferenceManager
@@ -94,8 +95,14 @@ class SubscriberService : Service() {
     override fun onDestroy() {
         Log.d(TAG, "Subscriber service has been destroyed")
         stopService()
-        val preferenceKey = getString(R.string.eos_preference_key_is_enabled)
-        if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean(preferenceKey, false)) {
+
+        val isEnabled = Settings.Global.getInt(
+            applicationContext.contentResolver,
+            applicationContext.getString(R.string.eos_preference_key_is_enabled),
+            0
+        )
+
+        if (isEnabled == 1) {
              sendBroadcast(Intent(this, AutoRestartReceiver::class.java))
         }
 
diff --git a/app/src/main/java/io/heckel/ntfy/service/SubscriberServiceManager.kt b/app/src/main/java/io/heckel/ntfy/service/SubscriberServiceManager.kt
index 18ed4f9..0e49315 100644
--- a/app/src/main/java/io/heckel/ntfy/service/SubscriberServiceManager.kt
+++ b/app/src/main/java/io/heckel/ntfy/service/SubscriberServiceManager.kt
@@ -2,6 +2,7 @@ package io.heckel.ntfy.service
 
 import android.content.Context
 import android.content.Intent
+import android.provider.Settings
 import androidx.preference.PreferenceManager
 import androidx.work.*
 import io.heckel.ntfy.app.Application
@@ -22,6 +23,7 @@ import kotlinx.coroutines.withContext
 class SubscriberServiceManager(private val context: Context) {
     fun refresh() {
         Log.d(TAG, "Enqueuing work to refresh subscriber service")
+
         val workManager = WorkManager.getInstance(context)
         val startServiceRequest = OneTimeWorkRequest.Builder(ServiceStartWorker::class.java).build()
         workManager.enqueueUniqueWork(WORK_NAME_ONCE, ExistingWorkPolicy.KEEP, startServiceRequest) // Unique avoids races!
@@ -46,10 +48,14 @@ class SubscriberServiceManager(private val context: Context) {
             }
 
             withContext(Dispatchers.IO) {
-                val app = context.applicationContext as Application
-                val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(app)
-                val preferenceKey = context.getString(R.string.eos_preference_key_is_enabled)
-                val action = if (sharedPreferences.getBoolean(preferenceKey, false)) {
+
+                val isEnabled = Settings.Global.getInt(
+                    context.contentResolver,
+                    context.getString(R.string.eos_preference_key_is_enabled),
+                    0
+                )
+
+                val action = if (isEnabled == 1) {
                     SubscriberService.Action.START
                 } else {
                     SubscriberService.Action.STOP
diff --git a/app/src/main/java/io/heckel/ntfy/ui/PreferencesFragment.kt b/app/src/main/java/io/heckel/ntfy/ui/PreferencesFragment.kt
index 2bc5e30..ea67f56 100644
--- a/app/src/main/java/io/heckel/ntfy/ui/PreferencesFragment.kt
+++ b/app/src/main/java/io/heckel/ntfy/ui/PreferencesFragment.kt
@@ -1,17 +1,12 @@
 package io.heckel.ntfy.ui
 
-import android.content.Context
 import android.content.Intent
 import android.os.Bundle
-import android.view.Menu
-import android.view.MenuInflater
-import android.view.MenuItem
-import android.widget.Toolbar
+import android.provider.Settings
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.SwitchPreferenceCompat
 import io.heckel.ntfy.R
 import io.heckel.ntfy.service.SubscriberService
-import io.heckel.ntfy.util.Log
 
 class PreferencesFragment : PreferenceFragmentCompat() {
 
@@ -23,6 +18,13 @@ class PreferencesFragment : PreferenceFragmentCompat() {
 
         preference?.setOnPreferenceChangeListener { _, newValue ->
             val isChecked = newValue as Boolean
+
+            Settings.Global.putInt(
+                requireContext().contentResolver,
+                requireContext().getString(R.string.eos_preference_key_is_enabled),
+                if (isChecked) 1 else 0
+            )
+
             val intent = Intent(context, SubscriberService::class.java)
             intent.action = if (isChecked) {
                 SubscriberService.Action.START.name