diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6e3e37..b986685 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,11 +2,12 @@
 	============================================
 
 	V2.0.4 - 09 May 2016
-	Improved handling of watch app settings to make sure
+	- Improved handling of watch app settings to make sure
 	they are loaded correctly without having to re-start app.
-	Added watch app to Andid phone app package so watch app can be
+	- Added watch app to Android phone app package so watch app can be
 	installed directly from phone rather than using pebble store.
-	Changed main screen graph to bar chart.
+	- Changed main screen graph to bar chart and highlights frequency
+	region of interest.
 
 	V2.0.3 - 23 April 2016
 		Further modification to beep code to avoid occasional crashes
diff --git a/app/app-release-2.0.4.apk b/app/app-release-2.0.4.apk
new file mode 100644
index 0000000..059fc7c
Binary files /dev/null and b/app/app-release-2.0.4.apk differ
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 01016aa..40924a3 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,7 +2,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="uk.org.openseizuredetector"
     android:versionCode="25"
-    android:versionName="2.0.4" >
+    android:versionName="2.0.4">
 
     <uses-sdk android:minSdkVersion="14" />
 
@@ -23,30 +23,28 @@
 
     <application
         android:icon="@drawable/star_of_life_48x48"
-        android:label="@string/app_name" >
-        <activity android:name=".StartupActivity" >
+        android:label="@string/app_name">
+        <activity android:name=".StartupActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-
         <activity
             android:name=".MainActivity"
-            android:icon="@drawable/star_of_life_48x48"
-            android:label="@string/app_name"
             android:exported="true"
-            >
-        </activity>
+            android:icon="@drawable/star_of_life_48x48"
+            android:label="@string/app_name"></activity>
         <activity
             android:name=".PrefActivity"
-            android:label="OpenSeizureDetector Preferences" >
-        </activity>
+            android:label="OpenSeizureDetector Preferences"></activity>
 
         <service
             android:name=".SdServer"
             android:exported="false" />
 
+        <activity android:name=".LogManagerActivity"></activity>
     </application>
 
 </manifest> <!-- android:uiOptions="splitActionBarWhenNarrow" -->
diff --git a/app/src/main/assets/pebble_sd.pbw b/app/src/main/assets/pebble_sd.pbw
index 4ab17a0..b31526c 100644
Binary files a/app/src/main/assets/pebble_sd.pbw and b/app/src/main/assets/pebble_sd.pbw differ
diff --git a/app/src/main/java/uk/org/openseizuredetector/EventLogManager/EventLogListAdapter.java b/app/src/main/java/uk/org/openseizuredetector/EventLogManager/EventLogListAdapter.java
new file mode 100644
index 0000000..91db4ef
--- /dev/null
+++ b/app/src/main/java/uk/org/openseizuredetector/EventLogManager/EventLogListAdapter.java
@@ -0,0 +1,98 @@
+package uk.org.openseizuredetector.EventLogManager;
+
+import java.util.ArrayList;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import uk.org.openseizuredetector.R;
+
+public class EventLogListAdapter extends BaseAdapter {
+	EventLogManager dm;
+	ArrayList<LogEntryModel> logEntryModelList;
+	LayoutInflater inflater;
+	Context _context;
+
+	public EventLogListAdapter(Context context) {
+
+		logEntryModelList = new ArrayList<LogEntryModel>();
+		_context = context;
+		inflater = (LayoutInflater) context
+				.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+		dm = new EventLogManager(_context);
+		logEntryModelList = dm.getAllData();
+
+	}
+
+	@Override
+	public void notifyDataSetChanged() {
+		super.notifyDataSetChanged();
+		//refetching the new data from database
+		logEntryModelList = dm.getAllData();
+
+	}
+
+	public void delRow(int delPosition) {
+
+		dm.deleteRow(logEntryModelList.get(delPosition).getId());
+		logEntryModelList.remove(delPosition);
+
+	}
+
+	@Override
+	public int getCount() {
+		return logEntryModelList.size();
+	}
+
+	@Override
+	public Object getItem(int position) {
+		return logEntryModelList.get(position);
+	}
+
+	@Override
+	public long getItemId(int position) {
+		return 0;
+	}
+
+	@Override
+	public View getView(int position, View convertView, ViewGroup parent) {
+		ViewHolder vHolder;
+		if (convertView == null) {
+			convertView = inflater.inflate(R.layout.log_entry_layout, null);
+			vHolder = new ViewHolder();
+
+			vHolder.date = (TextView) convertView
+					.findViewById(R.id.event_date);
+			vHolder.alarmState = (TextView) convertView
+					.findViewById(R.id.event_alarmState);
+			vHolder.note = (TextView) convertView
+					.findViewById(R.id.event_note);
+			vHolder.dataJSON = (TextView) convertView
+					.findViewById(R.id.event_dataJSON);
+			convertView.setTag(vHolder);
+		} else {
+			vHolder = (ViewHolder) convertView.getTag();
+		}
+
+		LogEntryModel eventObj = logEntryModelList.get(position);
+
+		//vHolder.date.setText(eventObj.getDate().toString());
+		vHolder.alarmState.setText(eventObj.getAlarmState());
+		vHolder.note.setText(eventObj.getNote());
+		vHolder.dataJSON.setText(eventObj.getDataJSON());
+
+		return convertView;
+	}
+
+	class ViewHolder {
+		TextView date,alarmState,note,dataJSON;
+	}
+
+}
diff --git a/app/src/main/java/uk/org/openseizuredetector/EventLogManager/EventLogManager.java b/app/src/main/java/uk/org/openseizuredetector/EventLogManager/EventLogManager.java
new file mode 100644
index 0000000..daebfca
--- /dev/null
+++ b/app/src/main/java/uk/org/openseizuredetector/EventLogManager/EventLogManager.java
@@ -0,0 +1,210 @@
+/**
+ * Database manager for logging events and associated seizure detector data.
+ */
+package uk.org.openseizuredetector.EventLogManager;
+
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.Locale;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.SQLException;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.util.Log;
+
+public class EventLogManager {
+    final static String TAG = "EventLogManager";
+	private SQLiteDatabase db; // a reference to the database manager class.
+	private static final String DB_NAME = "eventlog"; // the name of our database
+	private static final int DB_VERSION = 1; // the version of the database
+
+	private static final String TABLE_NAME = "events";// table name
+
+	// the names for our database columns
+	private static final String TABLE_ROW_ID = "_id";
+	private static final String TABLE_ROW_DATE = "event_date";
+	private static final String TABLE_ROW_ALARM_STATE = "alarm_state";
+	private static final String TABLE_ROW_DATA_JSON = "data_json";
+	private static final String TABLE_ROW_NOTE = "note";
+	private Context context;
+
+	public EventLogManager(Context context) {
+		this.context = context;
+
+		// create or open the database
+		CustomSQLiteOpenHelper helper = new CustomSQLiteOpenHelper(context);
+		this.db = helper.getWritableDatabase();
+
+		helper.onCreate(this.db);
+	}
+
+	// the beginnings our SQLiteOpenHelper class
+	private class CustomSQLiteOpenHelper extends SQLiteOpenHelper {
+
+		public CustomSQLiteOpenHelper(Context context) {
+			super(context, DB_NAME, null, DB_VERSION);
+		}
+
+		@Override
+		public void onCreate(SQLiteDatabase db) {
+			// the SQLite query string that will create our column database
+			// table.
+			String newTableQueryString = "create table " + TABLE_NAME + " ("
+					+ TABLE_ROW_ID
+					+ " integer primary key autoincrement not null,"
+					+ TABLE_ROW_DATE + " timestamp not null," + TABLE_ROW_ALARM_STATE
+					+ " integer not null," + TABLE_ROW_NOTE + " text not null,"
+					+ TABLE_ROW_DATA_JSON + " text not null" + ");";
+
+			// execute the query string to the database.
+			db.execSQL(newTableQueryString);
+		}
+
+		@Override
+		public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+
+			// LATER, WE WOULD SPECIFIY HOW TO UPGRADE THE DATABASE
+			// FROM OLDER VERSIONS.
+			String DROP_TABLE = "DROP TABLE IF EXISTS " + TABLE_NAME;
+			db.execSQL(DROP_TABLE);
+			onCreate(db);
+
+		}
+
+	}
+
+	public void addRow(LogEntryModel eventObj) {
+		ContentValues values = prepareData(eventObj);
+		// ask the database object to insert the new data
+		try {
+			db.insert(TABLE_NAME, null, values);
+		} catch (Exception e) {
+			Log.e("DB ERROR", e.toString()); // prints the error message to
+			// the log
+			e.printStackTrace(); // prints the stack trace to the log
+		}
+	}
+
+    private String getDateTime(Date date) {
+        SimpleDateFormat dateFormat = new SimpleDateFormat(
+                "yyyy-MM-dd HH:mm:ss", Locale.getDefault());
+        if (date==null)
+            return "";
+        else
+            return dateFormat.format(date);
+    }
+
+	private ContentValues prepareData(LogEntryModel eventObj) {
+
+		ContentValues values = new ContentValues();
+		values.put(TABLE_ROW_ALARM_STATE, eventObj.getAlarmState());
+		values.put(TABLE_ROW_DATE, getDateTime(eventObj.getDate()));
+		values.put(TABLE_ROW_NOTE, eventObj.getNote());
+		values.put(TABLE_ROW_DATA_JSON, eventObj.getDataJSON());
+		return values;
+	}
+
+	// Returns row data in form of LogEntryModel object
+	public LogEntryModel getRowAsObject(int rowID) {
+
+		LogEntryModel rowContactObj = new LogEntryModel();
+		Cursor cursor;
+
+		try {
+
+			cursor = db.query(TABLE_NAME, new String[] { TABLE_ROW_ID,
+					TABLE_ROW_ALARM_STATE, TABLE_ROW_DATE, TABLE_ROW_NOTE,
+					TABLE_ROW_DATA_JSON }, TABLE_ROW_ID + "=" + rowID, null,
+					null, null, null, null);
+			
+			cursor.moveToFirst();
+			prepareSendObject(rowContactObj, cursor);
+			
+		} catch (SQLException e) {
+			Log.e("DB ERROR", e.toString());
+			e.printStackTrace();
+		}
+
+		return rowContactObj;
+	}
+
+	// Returns all the rows data in form of LogEntryModel object list
+
+	public ArrayList<LogEntryModel> getAllData() {
+
+		ArrayList<LogEntryModel> allRowsObj = new ArrayList<LogEntryModel>();
+		Cursor cursor;
+		LogEntryModel rowContactObj;
+
+		String[] columns = new String[] { TABLE_ROW_ID, TABLE_ROW_ALARM_STATE,
+				TABLE_ROW_DATE, TABLE_ROW_NOTE, TABLE_ROW_DATA_JSON };
+
+		try {
+
+			cursor = db
+					.query(TABLE_NAME, columns, null, null, null, null, null);
+			cursor.moveToFirst();
+
+			if (!cursor.isAfterLast()) {
+				do {
+					rowContactObj = new LogEntryModel();
+					rowContactObj.setId(cursor.getInt(0));
+					prepareSendObject(rowContactObj, cursor);
+					allRowsObj.add(rowContactObj);
+
+				} while (cursor.moveToNext()); // try to move the cursor's
+				// pointer forward one position.
+			}
+		} catch (SQLException e) {
+			Log.e("DB ERROR", e.toString());
+			e.printStackTrace();
+		}
+
+		return allRowsObj;
+
+	}
+
+	private void prepareSendObject(LogEntryModel rowObj, Cursor cursor) {
+		rowObj.setId(cursor.getInt(cursor.getColumnIndexOrThrow(TABLE_ROW_ID)));
+		rowObj.setAlarmState(cursor.getInt(cursor
+				.getColumnIndexOrThrow(TABLE_ROW_ALARM_STATE)));
+		String dateTimeStr = cursor.getString(cursor
+				.getColumnIndexOrThrow(TABLE_ROW_DATE));
+        Log.v(TAG,"dateTimeStr = "+dateTimeStr);
+        Date dateVal;
+        try { dateVal = new Date(dateTimeStr); }
+        catch (IllegalArgumentException e) { dateVal = null; }
+        rowObj.setDate(dateVal);
+		rowObj.setNote(cursor.getString(cursor
+				.getColumnIndexOrThrow(TABLE_ROW_NOTE)));
+		rowObj.setDataJSON(cursor.getString(cursor
+				.getColumnIndexOrThrow(TABLE_ROW_DATA_JSON)));
+	}
+
+	public void deleteRow(int rowID) {
+		// ask the database manager to delete the row of given id
+		try {
+			db.delete(TABLE_NAME, TABLE_ROW_ID + "=" + rowID, null);
+		} catch (Exception e) {
+			Log.e("DB ERROR", e.toString());
+			e.printStackTrace();
+		}
+	}
+
+	public void updateRow(int rowId, LogEntryModel contactObj) {
+
+		ContentValues values = prepareData(contactObj);
+
+		String whereClause = TABLE_ROW_ID + "=?";
+		String whereArgs[] = new String[] { String.valueOf(rowId) };
+
+		db.update(TABLE_NAME, values, whereClause, whereArgs);
+
+	}
+
+
+}
diff --git a/app/src/main/java/uk/org/openseizuredetector/EventLogManager/LogEntryModel.java b/app/src/main/java/uk/org/openseizuredetector/EventLogManager/LogEntryModel.java
new file mode 100644
index 0000000..9502239
--- /dev/null
+++ b/app/src/main/java/uk/org/openseizuredetector/EventLogManager/LogEntryModel.java
@@ -0,0 +1,53 @@
+package uk.org.openseizuredetector.EventLogManager;
+
+import java.util.Date;
+
+/**
+ * Our LogEntryModel class which will have fields like id, name, contact number
+ * and email and corresponding getter and setter methods.
+ * **/
+public class LogEntryModel {
+
+	private int id;
+	private Date date;
+    private int alarmState;
+    private String dataJSON;
+    private String note;
+
+
+	public int getId() {
+		return id;
+	}
+
+	public void setId(int id) {
+		this.id = id;
+	}
+
+    public int getAlarmState() {
+        return alarmState;
+    }
+
+    public void setAlarmState(int alarmState) {
+        this.alarmState = alarmState;
+    }
+
+	public String getNote() {
+		return note;
+	}
+
+	public void setNote(String note) {
+		this.note = note;
+	}
+
+	public Date getDate() {
+		return date;
+	}
+
+	public void setDate(Date date) {
+		this.date = date;
+	}
+
+	public String getDataJSON() { return dataJSON; }
+
+	public void setDataJSON(String dataJSON) { this.dataJSON = dataJSON; }
+}
diff --git a/app/src/main/java/uk/org/openseizuredetector/LogManagerActivity.java b/app/src/main/java/uk/org/openseizuredetector/LogManagerActivity.java
new file mode 100644
index 0000000..5da2319
--- /dev/null
+++ b/app/src/main/java/uk/org/openseizuredetector/LogManagerActivity.java
@@ -0,0 +1,42 @@
+package uk.org.openseizuredetector;
+
+import android.app.Activity;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.widget.ListView;
+
+import java.util.Date;
+
+import uk.org.openseizuredetector.EventLogManager.EventLogListAdapter;
+import uk.org.openseizuredetector.EventLogManager.EventLogManager;
+import uk.org.openseizuredetector.EventLogManager.LogEntryModel;
+
+public class LogManagerActivity extends Activity {
+
+    private EventLogListAdapter mEventLogListAdapter;
+    private ListView mEventLogListView;
+    private EventLogManager mElm;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_log_manager);
+
+        LogEntryModel lem = new LogEntryModel();
+        //lem.setDate(new Date());
+        lem.setNote("Test Entry");
+        lem.setDataJSON("[]");
+        lem.setAlarmState(1);
+
+        mElm = new EventLogManager(this);
+        mElm.addRow(lem);
+
+        mEventLogListAdapter = new EventLogListAdapter(this);
+        mEventLogListView = (ListView) findViewById(R.id.eventLogListView);
+        mEventLogListView.setAdapter(mEventLogListAdapter);
+
+
+    }
+
+
+}
diff --git a/app/src/main/java/uk/org/openseizuredetector/MainActivity.java b/app/src/main/java/uk/org/openseizuredetector/MainActivity.java
index 89d9899..f05089d 100644
--- a/app/src/main/java/uk/org/openseizuredetector/MainActivity.java
+++ b/app/src/main/java/uk/org/openseizuredetector/MainActivity.java
@@ -222,6 +222,17 @@ public class MainActivity extends Activity {
                     mConnection.mSdServer.sendSMSAlarm();
                 }
                 return true;
+            case R.id.action_logs:
+                Log.v(TAG, "action_logs");
+                try {
+                    Intent prefsIntent = new Intent(
+                            MainActivity.this,
+                            LogManagerActivity.class);
+                    this.startActivity(prefsIntent);
+                } catch (Exception ex) {
+                    Log.v(TAG, "exception starting log manager activity " + ex.toString());
+                }
+                return true;
             case R.id.action_settings:
                 Log.v(TAG, "action_settings");
                 try {
diff --git a/app/src/main/res/layout/activity_log_manager.xml b/app/src/main/res/layout/activity_log_manager.xml
new file mode 100644
index 0000000..5143735
--- /dev/null
+++ b/app/src/main/res/layout/activity_log_manager.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context="uk.org.openseizuredetector.LogManager">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textAppearance="?android:attr/textAppearanceLarge"
+        android:text="Large Text"
+        android:id="@+id/textView2"
+        />
+
+    <ListView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:id="@+id/eventLogListView"
+        android:layout_marginTop="97dp" />
+
+</LinearLayout>
diff --git a/app/src/main/res/layout/log_entry_layout.xml b/app/src/main/res/layout/log_entry_layout.xml
new file mode 100644
index 0000000..2c8fa5d
--- /dev/null
+++ b/app/src/main/res/layout/log_entry_layout.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="match_parent">
+<LinearLayout
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal">
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="date"
+        android:id="@+id/event_date" />
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="alarm"
+        android:id="@+id/event_alarmState"
+         />
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="note"
+        android:id="@+id/event_note"
+         />
+</LinearLayout>
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="dataJSON"
+        android:id="@+id/event_dataJSON" />
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/menu/main_activity_actions.xml b/app/src/main/res/menu/main_activity_actions.xml
index 04321e1..c196140 100644
--- a/app/src/main/res/menu/main_activity_actions.xml
+++ b/app/src/main/res/menu/main_activity_actions.xml
@@ -47,11 +47,20 @@
         android:title="Test SMS Alarm Notification" />
 
 
+    <item
+        android:id="@+id/action_logs"
+        android:icon="@drawable/ic_action_settings"
+        android:showAsAction="never|withText"
+        android:title="View/Edit Log Entries"
+        android:enabled="false"
+        />
+
     <item
         android:id="@+id/action_settings"
         android:icon="@drawable/ic_action_settings"
         android:showAsAction="never|withText"
-        android:title="Settings" />
+        android:title="Settings"
+        />
 
     <item
         android:id="@+id/action_about"
diff --git a/app/src/test/java/uk/org/openseizuredetector/EventLogManagerTest.java b/app/src/test/java/uk/org/openseizuredetector/EventLogManagerTest.java
new file mode 100644
index 0000000..faca38e
--- /dev/null
+++ b/app/src/test/java/uk/org/openseizuredetector/EventLogManagerTest.java
@@ -0,0 +1,46 @@
+package uk.org.openseizuredetector;
+
+import android.content.Context;
+import android.util.EventLog;
+import android.util.Log;
+
+import junit.framework.TestCase;
+import android.test.mock.MockContext;
+
+import org.junit.Test;
+import org.mockito.internal.exceptions.ExceptionIncludingMockitoWarnings;
+
+import uk.org.openseizuredetector.EventLogManager.EventLogManager;
+import uk.org.openseizuredetector.EventLogManager.LogEntryModel;
+
+/**
+ * Created by graham on 12/05/16.
+ */
+public class EventLogManagerTest extends TestCase {
+    private final static String TAG = "EventLogManagerTest";
+    Context mContext;
+
+    protected void setUp() throws Exception {
+        super.setUp();
+        Log.v(TAG,"setUp()");
+        mContext = new MockContext();
+}
+
+    @Test
+    public void testOpenDb() throws Exception {
+        Log.v(TAG,"testOpenDb()");
+        EventLogManager em = new EventLogManager(mContext);
+        assertNotNull(em);
+
+
+        LogEntryModel lem = new LogEntryModel();
+        //lem.setDate(new Date());
+        lem.setNote("Test Entry");
+        lem.setDataJSON("[]");
+        lem.setAlarmState(1);
+
+        em.addRow(lem);
+
+    }
+
+}