diff --git a/CHANGES.txt b/CHANGES.txt
index f16f9cd..cd1565e 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,5 +1,12 @@
 Change log for AWARE-Light
 
+4.1.5.light.bundle
+- Logging if the application is terminated by user actions or system actions to aware_log table
+- Screen reader function improved preformance
+
+4.1.4.light.bundle
+- same as 4.1.3.light.bundle
+
 4.1.3.light.bundle
 - Fixed bug for random EMA triggered condition
 - Screen reader function improved preformance
diff --git a/aware-core/src/main/java/com/aware/Aware.java b/aware-core/src/main/java/com/aware/Aware.java
index 803c6ab..5e7bf84 100644
--- a/aware-core/src/main/java/com/aware/Aware.java
+++ b/aware-core/src/main/java/com/aware/Aware.java
@@ -212,7 +212,7 @@ public class Aware extends Service {
     /**
      * Variable for the Doze ignore list
      */
-    private static final int AWARE_BATTERY_OPTIMIZATION_ID = 567567;
+    public static final int AWARE_BATTERY_OPTIMIZATION_ID = 567567;
 
     /**
      * Holds a reference to the AWARE account, automatically restore in each plugin.
@@ -2663,6 +2663,9 @@ public static boolean isSyncEnabled(Context context, String authority) {
     public static void stopAWARE(Context context) {
         if (context == null) return;
 
+        // Check if the activity is finishing
+        boolean isFinishing = ((Activity) context).isFinishing();
+
         Intent aware = new Intent(context, Aware.class);
         context.stopService(aware);
 
@@ -2694,6 +2697,16 @@ public static void stopAWARE(Context context) {
         stopKeyboard(context);
         stopScreenText(context);
         stopScheduler(context);
+
+
+        // Handle based on whether it's user-initiated or system-initiated closure
+        if (isFinishing) {
+            // User initiated closure
+            Aware.debug(context, "AWARE-Light interface cleaned from the array of frequently used apps");
+        } else {
+            // System-initiated closure
+            Aware.debug(context, "AWARE-Light interface cleaned by smartphone system");
+        }
     }
 
     /**
diff --git a/aware-phone/src/main/java/com/aware/phone/ui/Aware_Light_Client.java b/aware-phone/src/main/java/com/aware/phone/ui/Aware_Light_Client.java
index a3e18d0..8336e3d 100644
--- a/aware-phone/src/main/java/com/aware/phone/ui/Aware_Light_Client.java
+++ b/aware-phone/src/main/java/com/aware/phone/ui/Aware_Light_Client.java
@@ -1,7 +1,10 @@
 package com.aware.phone.ui;
 
 import android.Manifest;
+import android.app.Activity;
 import android.app.Dialog;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -18,6 +21,7 @@
 import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.PowerManager;
 import android.preference.CheckBoxPreference;
 import android.preference.EditTextPreference;
 import android.preference.ListPreference;
@@ -51,10 +55,13 @@
 import java.util.UUID;
 
 import androidx.appcompat.widget.Toolbar;
+import androidx.core.app.NotificationCompat;
 import androidx.core.content.ContextCompat;
 import androidx.core.content.PermissionChecker;
 
+import static com.aware.Aware.AWARE_NOTIFICATION_IMPORTANCE_GENERAL;
 import static com.aware.Aware.TAG;
+import static com.aware.Aware.setNotificationProperties;
 
 /**
  *
@@ -469,8 +476,71 @@ protected void onPause() {
         if (prefs != null) prefs.unregisterOnSharedPreferenceChangeListener(this);
     }
 
+    public static boolean isBatteryOptimizationIgnored(Context context, String package_name) {
+        boolean is_ignored = true;
+        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1) {
+            PowerManager pm = (PowerManager) context.getApplicationContext().getSystemService(Context.POWER_SERVICE);
+            is_ignored = pm.isIgnoringBatteryOptimizations(package_name);
+        }
+
+        if (!is_ignored) {
+            NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context, Aware.AWARE_NOTIFICATION_CHANNEL_GENERAL);
+            mBuilder.setSmallIcon(com.aware.R.drawable.ic_stat_aware_recharge);
+            mBuilder.setContentTitle(context.getApplicationContext().getResources().getString(com.aware.R.string.aware_activate_battery_optimize_ignore_title));
+            mBuilder.setContentText(context.getApplicationContext().getResources().getString(com.aware.R.string.aware_activate_battery_optimize_ignore));
+            mBuilder.setAutoCancel(true);
+            mBuilder.setOnlyAlertOnce(true); //notify the user only once
+            mBuilder.setDefaults(NotificationCompat.DEFAULT_ALL);
+            mBuilder = setNotificationProperties(mBuilder, AWARE_NOTIFICATION_IMPORTANCE_GENERAL);
+
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+                mBuilder.setChannelId(Aware.AWARE_NOTIFICATION_CHANNEL_GENERAL);
+
+            Intent batteryIntent = new Intent(Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS);
+            batteryIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
+
+            PendingIntent clickIntent = PendingIntent.getActivity(context, 0, batteryIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+            mBuilder.setContentIntent(clickIntent);
+
+            NotificationManager notManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
+            notManager.notify(Aware.AWARE_BATTERY_OPTIMIZATION_ID, mBuilder.build());
+        }
+
+        Log.d(Aware.TAG, "Battery Optimizations: " + is_ignored);
+
+        return is_ignored;
+    }
+
+    @Override
+    protected void onStop() {
+        // Check if the activity is finishing
+        boolean isFinishing = this.isFinishing();
+
+        // Handle based on whether it's system-initiated closure
+        if (!isFinishing) {
+            if (isBatteryOptimizationIgnored(this, "com.aware.phone")) {
+                Log.d("AWARE-Light_Client", "AWARE-Light stopped from background: may be caused by battery optimization");
+                Aware.debug(this, "AWARE-Light stopped from background: may be caused by battery optimization");
+            } else {
+                Log.d("AWARE-Light_Client", "AWARE-Light stopped from background: may be caused by system settings");
+                Aware.debug(this, "AWARE-Light stopped from background: may be caused by system settings");
+            }
+        }
+        super.onStop();
+    }
+
+
     @Override
     protected void onDestroy() {
+        // Check if the activity is finishing
+        boolean isFinishing = this.isFinishing();
+
+        // Handle based on whether it's user-initiated or system-initiated closure
+        if (isFinishing) {
+            // User initiated closure
+            Aware.debug(this, "AWARE-Light interface cleaned from the list of frequently used apps");
+        }
+        Log.d("AWARE-Light_Client", "AWARE-Light interface cleaned from the list of frequently used apps");
         super.onDestroy();
         unregisterReceiver(packageMonitor);
     }
diff --git a/build.gradle b/build.gradle
index 996e351..ac500cd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ buildscript {
         mqtt_libs = '1.2.1'
         ion_libs = "2.+"
         google_libs = "17.0.0"
-        version_code = 3
+        version_code = 5
         version_readable = "4.1." + version_code + ".light.bundle"
         compile_sdk = 28
         target_sdk = 28
diff --git a/resources/aware-phone-armeabi-v7a-release.apk b/resources/aware-phone-armeabi-v7a-release.apk
index ed3d89a..e9a082d 100644
Binary files a/resources/aware-phone-armeabi-v7a-release.apk and b/resources/aware-phone-armeabi-v7a-release.apk differ