diff --git a/app/build.gradle b/app/build.gradle
index 7b98881..1b6f2a2 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,7 +7,7 @@ android {
     defaultConfig {
         applicationId "uk.org.openseizuredetector"
         minSdkVersion 23  // Android 6
-        targetSdkVersion 33  // Android 13 = 33
+        targetSdkVersion 34  // Android 14 = 34
         multiDexEnabled true
     }
 
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 8c730ed..14bd92a 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    android:versionCode="146"
-    android:versionName="4.2.11x2">
+    android:versionCode="147"
+    android:versionName="4.3.0a">
     <!-- android:allowBackup="false" -->
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
 
@@ -12,6 +12,8 @@
         android:maxSdkVersion="30" />
     <uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
     <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_HEALTH" />
+    <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
@@ -80,6 +82,7 @@
 
         <service
             android:name=".SdServer"
+            android:foregroundServiceType="health"
             android:exported="false" />
 
         <activity android:name=".LogManagerControlActivity" />
diff --git a/app/src/main/java/uk/org/openseizuredetector/OsdUtil.java b/app/src/main/java/uk/org/openseizuredetector/OsdUtil.java
index 4b86b0b..b44ca30 100644
--- a/app/src/main/java/uk/org/openseizuredetector/OsdUtil.java
+++ b/app/src/main/java/uk/org/openseizuredetector/OsdUtil.java
@@ -116,6 +116,15 @@ public class OsdUtil {
     };
     public String[] BT_PERMISSIONS;
 
+    public final String[] ACTIVITY_PERMISSIONS_API34 = {
+            Manifest.permission.FOREGROUND_SERVICE_HEALTH,
+            Manifest.permission.ACTIVITY_RECOGNITION
+    };
+
+    public final String[] ACTIVITY_PERMISSIONS_OLD = {};
+    public String[] ACTIVITY_PERMISSIONS;
+
+
     public OsdUtil(Context context, Handler handler) {
         mContext = context;
         mHandler = handler;
@@ -780,6 +789,33 @@ public class OsdUtil {
         return allOk;
     }
 
+    public String[] getRequiredActivityPermissions() {
+        // API 34 is Android 14 - see https://developer.android.com/develop/connectivity/bluetooth/bt-permissions
+        if (Build.VERSION.SDK_INT >= 34) {
+            Log.d(TAG, "getRequiredActivityPermissions() - using new Activity Permissions");
+            ACTIVITY_PERMISSIONS = ACTIVITY_PERMISSIONS_API34;
+        } else {
+            Log.d(TAG, "getRequiredActivityPermissions() - using old Activity Permissions");
+            ACTIVITY_PERMISSIONS = ACTIVITY_PERMISSIONS_OLD;
+        }
+        return (ACTIVITY_PERMISSIONS);
+    }
+    public boolean areActivityPermissionsOk() {
+        String[] activityPermissions = getRequiredActivityPermissions();
+        boolean allOk = true;
+        Log.d(TAG, "areActivityPermissions OK()");
+        for (int i = 0; i < activityPermissions.length; i++) {
+            if (ContextCompat.checkSelfPermission(mContext, activityPermissions[i])
+                    != PackageManager.PERMISSION_GRANTED) {
+                Log.i(TAG, activityPermissions[i] + " Permission Not Granted");
+                allOk = false;
+            }
+        }
+        return allOk;
+    }
+
+
+
     public double parseToDouble(String userInput) {
         /**
          * Parse a string to a double value, taking localisation into account.
diff --git a/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java b/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java
index dde3e9e..4ee024e 100644
--- a/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java
+++ b/app/src/main/java/uk/org/openseizuredetector/StartupActivity.java
@@ -88,8 +88,10 @@ public class StartupActivity extends AppCompatActivity {
     private boolean mLocationPermissions2Requested;
     private boolean mSmsPermissionsRequested;
     private boolean mPermissionsRequested;
+    private boolean mActivityPermissionsRequested = false;
     private boolean mBindInProgress = false;
 
+
     public final String[] REQUIRED_PERMISSIONS = {
             //Manifest.permission.WRITE_EXTERNAL_STORAGE,
             Manifest.permission.WAKE_LOCK,
@@ -328,14 +330,22 @@ public class StartupActivity extends AppCompatActivity {
                         //pb.setProgressDrawable(getResources().getDrawable(R.drawable.start_server));
                         requestBTPermissions();
                         allOk = false;
-                    } else  if (mBleDeviceAddr.equals("")) {
-                        Log.i(TAG,"BLE data source selected, but no device address specified - starting BLEScanActivity");
+                    } else if (mBleDeviceAddr.equals("")) {
+                        Log.i(TAG, "BLE data source selected, but no device address specified - starting BLEScanActivity");
                         Intent i;
                         i = new Intent(getApplicationContext(), BLEScanActivity.class);
                         startActivity(i);
                         finish();
                         return;
                     }
+                } else if (!mUtil.areActivityPermissionsOk()) {
+                    Log.i(TAG, "Activity permissions NOT OK");
+                    tv.setText(getString(R.string.ActivityPermissionWarning));
+                    tv.setBackgroundColor(alarmColour);
+                    tv.setTextColor(alarmTextColour);
+                    requestActivityPermissions();
+                    allOk = false;
+
                 } else if (smsAlarmsActive && !areSMSPermissions1OK()) {
                     Log.i(TAG, "SMS permissions NOT OK");
                     tv.setText(getString(R.string.SmsPermissionWarning));
@@ -699,6 +709,7 @@ public class StartupActivity extends AppCompatActivity {
         return allOk;
     }
 
+
     public boolean areSMSPermissions1OK() {
         boolean allOk = true;
         Log.v(TAG, "areSMSPermissions1 OK()");
@@ -879,6 +890,33 @@ public class StartupActivity extends AppCompatActivity {
         }
     }
 
+    public void requestActivityPermissions() {
+        if (mActivityPermissionsRequested) {
+            Log.i(TAG, "requestActivityPermissions() - request already sent - not doing anything");
+        } else {
+            Log.i(TAG, "requestActivityPermissions() - requesting permissions");
+            mActivityPermissionsRequested = true;
+            AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
+                    this);
+            alertDialogBuilder
+                    .setTitle(R.string.activity_permissions_required)
+                    .setMessage(R.string.activity_permissions_rationale)
+                    .setCancelable(false)
+                    .setPositiveButton(getString(R.string.okBtnTxt), new DialogInterface.OnClickListener() {
+                        public void onClick(DialogInterface dialog, int id) {
+                            dialog.cancel();
+                            Log.i(TAG, "requestActivityPermissions(): Launching ActivityCompat.requestPermissions()");
+                            ActivityCompat.requestPermissions(StartupActivity.this,
+                                    mUtil.getRequiredActivityPermissions(),
+                                    49);
+                        }
+                    })
+                    .create().show();
+        }
+    }
+
+
+
     @Override
     public void onRequestPermissionsResult(int requestCode,
                                            String permissions[], int[] grantResults) {
diff --git a/app/src/main/res/layout/activity_main_simple.xml b/app/src/main/res/layout/activity_main_simple.xml
new file mode 100644
index 0000000..a00ae34
--- /dev/null
+++ b/app/src/main/res/layout/activity_main_simple.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/versionTv"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/app_name" />
+
+
+    <androidx.fragment.app.FragmentContainerView xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/fragment_common_container_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+
+    <androidx.viewpager2.widget.ViewPager2
+        android:id="@+id/fragment_pager"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d9611f5..f7b9b39 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -578,4 +578,7 @@
     <string name="restart_server">Restart Server</string>
     <string name="error_failed_to_create_local_event">ERROR: failed to create local event</string>
     <string name="error_failed_to_start_log_manager">ERROR: Failed to start Log Manager</string>
+    <string name="ActivityPermissionWarning">Problem with Activity Detection Permissions</string>
+    <string name="activity_permissions_required">Activity Detection Permission Required.</string>
+    <string name="activity_permissions_rationale">Permission required to analyse your movements to detect seizure activity.</string>
 </resources>
diff --git a/app/src/test/java/uk/org/openseizuredetector/SdAlgHrTest.java b/app/src/test/java/uk/org/openseizuredetector/SdAlgHrTest.java
index 859a642..64a78f9 100644
--- a/app/src/test/java/uk/org/openseizuredetector/SdAlgHrTest.java
+++ b/app/src/test/java/uk/org/openseizuredetector/SdAlgHrTest.java
@@ -57,7 +57,7 @@ public class SdAlgHrTest extends TestCase {
         mSdAlgHr.checkHr(60.);
         mSdAlgHr.checkHr(70.);
         mSdAlgHr.checkHr(80.);
-        double hrAv = mSdAlgHr.getAverageHrVal();
+        double hrAv = mSdAlgHr.getAverageHrAverage();
         assertEquals(hrAv, 70);
     }
 }
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 1166b18..8611b29 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,7 +10,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.1.2'
+        classpath 'com.android.tools.build:gradle:8.4.1'
         classpath 'com.google.gms:google-services:4.3.15'
     }
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 3f8e9a4..87fdfe6 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-all.zip