diff --git a/app/build.gradle b/app/build.gradle
index 3639493..092ad46 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -66,8 +66,6 @@ dependencies {
     implementation 'com.google.firebase:firebase-firestore'
     implementation 'androidx.navigation:navigation-fragment:2.5.2'
     implementation 'androidx.navigation:navigation-ui:2.5.2'
-    implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.6.1'
-    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.1'
 
     testImplementation 'junit:junit:4.13.2'
     testImplementation "androidx.test:core"
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 719a76a..6d178ee 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:versionCode="128"
     android:versionName="4.2.1b">
+
     <!-- android:allowBackup="false" -->
     <uses-permission android:name="android.permission.BLUETOOTH" />
     <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
@@ -21,13 +22,10 @@
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
-    <!--
- AD_ID seems to be added automatically as part of google play services.  We don't use ads,
-    so explicitly remove it to keep Google Play store happy.
-    -->
-    <uses-permission
-        android:name="com.google.android.gms.permission.AD_ID"
-        tools:node="remove" />
+
+    <!-- AD_ID seems to be added automatically as part of google play services.  We don't use ads,
+    so explicitly remove it to keep Google Play store happy.  -->
+    <uses-permission android:name="com.google.android.gms.permission.AD_ID" tools:node="remove"/>
 
     <uses-feature
         android:name="android.hardware.telephony"
@@ -41,17 +39,6 @@
         android:label="@string/app_name"
         android:networkSecurityConfig="@xml/network_security_config"
         android:theme="@style/AppTheme">
-        <activity
-            android:name=".MainActivity2"
-            android:exported="true"
-            android:label="@string/title_activity_main2"
-            android:theme="@style/AppTheme.NoActionBar">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity>
         <activity
             android:name=".MlModelManager"
             android:exported="false"
diff --git a/app/src/main/java/uk/org/openseizuredetector/MainActivity2.java b/app/src/main/java/uk/org/openseizuredetector/MainActivity2.java
deleted file mode 100644
index 93895c0..0000000
--- a/app/src/main/java/uk/org/openseizuredetector/MainActivity2.java
+++ /dev/null
@@ -1,45 +0,0 @@
-package uk.org.openseizuredetector;
-
-import android.os.Bundle;
-
-import com.google.android.material.floatingactionbutton.FloatingActionButton;
-import com.google.android.material.snackbar.Snackbar;
-import com.google.android.material.tabs.TabLayout;
-
-import androidx.viewpager.widget.ViewPager;
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-
-import uk.org.openseizuredetector.ui.main.SectionsPagerAdapter;
-import uk.org.openseizuredetector.databinding.ActivityMainBinding;
-
-public class MainActivity2 extends AppCompatActivity {
-
-    private ActivityMainBinding binding;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        binding = ActivityMainBinding.inflate(getLayoutInflater());
-        setContentView(binding.getRoot());
-
-        SectionsPagerAdapter sectionsPagerAdapter = new SectionsPagerAdapter(this, getSupportFragmentManager());
-        ViewPager viewPager = binding.viewPager;
-        viewPager.setAdapter(sectionsPagerAdapter);
-        TabLayout tabs = binding.tabs;
-        tabs.setupWithViewPager(viewPager);
-        FloatingActionButton fab = binding.fab;
-
-        fab.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View view) {
-                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
-                        .setAction("Action", null).show();
-            }
-        });
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/uk/org/openseizuredetector/ui/main/PageViewModel.java b/app/src/main/java/uk/org/openseizuredetector/ui/main/PageViewModel.java
deleted file mode 100644
index 4721291..0000000
--- a/app/src/main/java/uk/org/openseizuredetector/ui/main/PageViewModel.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package uk.org.openseizuredetector.ui.main;
-
-import androidx.arch.core.util.Function;
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.Transformations;
-import androidx.lifecycle.ViewModel;
-
-public class PageViewModel extends ViewModel {
-
-    private MutableLiveData<Integer> mIndex = new MutableLiveData<>();
-    private LiveData<String> mText = Transformations.map(mIndex, new Function<Integer, String>() {
-        @Override
-        public String apply(Integer input) {
-            return "Hello world from section: " + input;
-        }
-    });
-
-    public void setIndex(int index) {
-        mIndex.setValue(index);
-    }
-
-    public LiveData<String> getText() {
-        return mText;
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/uk/org/openseizuredetector/ui/main/PlaceholderFragment.java b/app/src/main/java/uk/org/openseizuredetector/ui/main/PlaceholderFragment.java
deleted file mode 100644
index 02b1f51..0000000
--- a/app/src/main/java/uk/org/openseizuredetector/ui/main/PlaceholderFragment.java
+++ /dev/null
@@ -1,70 +0,0 @@
-package uk.org.openseizuredetector.ui.main;
-
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.annotation.Nullable;
-import androidx.annotation.NonNull;
-import androidx.fragment.app.Fragment;
-import androidx.lifecycle.Observer;
-import androidx.lifecycle.ViewModelProvider;
-
-import uk.org.openseizuredetector.R;
-import uk.org.openseizuredetector.databinding.FragmentMainBinding;
-
-/**
- * A placeholder fragment containing a simple view.
- */
-public class PlaceholderFragment extends Fragment {
-
-    private static final String ARG_SECTION_NUMBER = "section_number";
-
-    private PageViewModel pageViewModel;
-    private FragmentMainBinding binding;
-
-    public static PlaceholderFragment newInstance(int index) {
-        PlaceholderFragment fragment = new PlaceholderFragment();
-        Bundle bundle = new Bundle();
-        bundle.putInt(ARG_SECTION_NUMBER, index);
-        fragment.setArguments(bundle);
-        return fragment;
-    }
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        pageViewModel = new ViewModelProvider(this).get(PageViewModel.class);
-        int index = 1;
-        if (getArguments() != null) {
-            index = getArguments().getInt(ARG_SECTION_NUMBER);
-        }
-        pageViewModel.setIndex(index);
-    }
-
-    @Override
-    public View onCreateView(
-            @NonNull LayoutInflater inflater, ViewGroup container,
-            Bundle savedInstanceState) {
-
-        binding = FragmentMainBinding.inflate(inflater, container, false);
-        View root = binding.getRoot();
-
-        final TextView textView = binding.sectionLabel;
-        pageViewModel.getText().observe(getViewLifecycleOwner(), new Observer<String>() {
-            @Override
-            public void onChanged(@Nullable String s) {
-                textView.setText(s);
-            }
-        });
-        return root;
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        binding = null;
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/uk/org/openseizuredetector/ui/main/SectionsPagerAdapter.java b/app/src/main/java/uk/org/openseizuredetector/ui/main/SectionsPagerAdapter.java
deleted file mode 100644
index 36b782d..0000000
--- a/app/src/main/java/uk/org/openseizuredetector/ui/main/SectionsPagerAdapter.java
+++ /dev/null
@@ -1,46 +0,0 @@
-package uk.org.openseizuredetector.ui.main;
-
-import android.content.Context;
-
-import androidx.annotation.Nullable;
-import androidx.annotation.StringRes;
-import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentManager;
-import androidx.fragment.app.FragmentPagerAdapter;
-
-import uk.org.openseizuredetector.R;
-
-/**
- * A [FragmentPagerAdapter] that returns a fragment corresponding to
- * one of the sections/tabs/pages.
- */
-public class SectionsPagerAdapter extends FragmentPagerAdapter {
-
-    @StringRes
-    private static final int[] TAB_TITLES = new int[]{R.string.tab_text_1, R.string.tab_text_2};
-    private final Context mContext;
-
-    public SectionsPagerAdapter(Context context, FragmentManager fm) {
-        super(fm);
-        mContext = context;
-    }
-
-    @Override
-    public Fragment getItem(int position) {
-        // getItem is called to instantiate the fragment for the given page.
-        // Return a PlaceholderFragment.
-        return PlaceholderFragment.newInstance(position + 1);
-    }
-
-    @Nullable
-    @Override
-    public CharSequence getPageTitle(int position) {
-        return mContext.getResources().getString(TAB_TITLES[position]);
-    }
-
-    @Override
-    public int getCount() {
-        // Show 2 total pages.
-        return 2;
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
deleted file mode 100644
index c6a81a6..0000000
--- a/app/src/main/res/layout/activity_main.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".MainActivity2">
-
-    <com.google.android.material.appbar.AppBarLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
-
-        <TextView
-            android:id="@+id/title"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:gravity="center"
-            android:minHeight="?actionBarSize"
-            android:padding="@dimen/appbar_padding"
-            android:text="@string/app_name"
-            android:textAppearance="@style/TextAppearance.Widget.AppCompat.Toolbar.Title" />
-
-        <com.google.android.material.tabs.TabLayout
-            android:id="@+id/tabs"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content" />
-    </com.google.android.material.appbar.AppBarLayout>
-
-    <androidx.viewpager.widget.ViewPager
-        android:id="@+id/view_pager"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
-
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
-        android:id="@+id/fab"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
-        android:layout_marginEnd="@dimen/fab_margin"
-        android:layout_marginBottom="16dp"
-        app:srcCompat="@android:drawable/ic_dialog_email" />
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
deleted file mode 100644
index 0a90c04..0000000
--- a/app/src/main/res/layout/fragment_main.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/constraintLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".ui.main.PlaceholderFragment">
-
-    <TextView
-        android:id="@+id/section_label"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginStart="@dimen/activity_horizontal_margin"
-        android:layout_marginTop="@dimen/activity_vertical_margin"
-        android:layout_marginEnd="@dimen/activity_horizontal_margin"
-        android:layout_marginBottom="@dimen/activity_vertical_margin"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintTop_toTopOf="@+id/constraintLayout"
-        tools:layout_constraintLeft_creator="1"
-        tools:layout_constraintTop_creator="1" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values-land/dimens.xml b/app/src/main/res/values-land/dimens.xml
deleted file mode 100644
index 22d7f00..0000000
--- a/app/src/main/res/values-land/dimens.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-    <dimen name="fab_margin">48dp</dimen>
-</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-w1240dp/dimens.xml b/app/src/main/res/values-w1240dp/dimens.xml
deleted file mode 100644
index d73f4a3..0000000
--- a/app/src/main/res/values-w1240dp/dimens.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-    <dimen name="fab_margin">200dp</dimen>
-</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-w600dp/dimens.xml b/app/src/main/res/values-w600dp/dimens.xml
deleted file mode 100644
index 22d7f00..0000000
--- a/app/src/main/res/values-w600dp/dimens.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<resources>
-    <dimen name="fab_margin">48dp</dimen>
-</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index b9898d5..edf0e6d 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -3,7 +3,5 @@
     <dimen name="activity_horizontal_margin">16dp</dimen>
     <dimen name="activity_vertical_margin">16dp</dimen>
     <dimen name="fab_margin">16dp</dimen>
-    <dimen name="appbar_padding">16dp</dimen>
-    <dimen name="appbar_padding_top">8dp</dimen>
     <!-- Default screen margins, per the Android Design guidelines. -->
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 013bea7..32ea311 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -555,7 +555,4 @@
         libero vel nunc consequat, quis tincidunt nisl eleifend. Cras bibendum enim a justo luctus
         vestibulum. Fusce dictum libero quis erat maximus, vitae volutpat diam dignissim.
     </string>
-    <string name="title_activity_main2">MainActivity2</string>
-    <string name="tab_text_1">Tab 1</string>
-    <string name="tab_text_2">Tab 2</string>
 </resources>
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
deleted file mode 100644
index d907dd5..0000000
--- a/app/src/main/res/values/themes.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<resources>
-
-    <style name="AppTheme.NoActionBar">
-        <item name="windowActionBar">false</item>
-        <item name="windowNoTitle">true</item>
-    </style>
-
-    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
-
-    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
-</resources>
\ No newline at end of file