diff --git a/app/build.gradle b/app/build.gradle
index 6b21fb73fbf..e6065528fd8 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,8 +8,8 @@ android {
         applicationId 'io.github.muntashirakon.AppManager'
         minSdkVersion 21
         targetSdkVersion 29
-        versionCode 85
-        versionName '2.2.4'
+        versionCode 87
+        versionName '2.3.0'
     }
     buildTypes {
         release {
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 03111384b4b..3e992d4e270 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,18 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    package="io.github.muntashirakon.AppManager"
-    xmlns:dist="http://schemas.android.com/apk/distribution">
-    <dist:module dist:instant="true" />
-    <uses-permission android:name="android.permission.GET_PACKAGE_SIZE" android:maxSdkVersion="25" />
+    package="io.github.muntashirakon.AppManager">
+    <uses-permission android:name="android.permission.GET_PACKAGE_SIZE"
+        android:maxSdkVersion="25" />
+    <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS"
+        tools:ignore="ProtectedPermissions" />
     <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />
     <application
         android:allowBackup="false"
         android:icon="@drawable/ic_launcher_app_manager"
         android:label="@string/app_name"
+        android:largeHeap="true"
         android:theme="@style/AppTheme"
-        tools:replace="android:icon"
-        android:largeHeap="true">
+        tools:replace="android:icon">
+        <activity
+            android:name=".activities.AppUsageActivity"
+            android:permission="android.permission.PACKAGE_USAGE_STATS" />
         <activity android:name=".activities.ClassViewerActivity" />
         <activity android:name=".activities.ClassListingActivity" />
         <activity
diff --git a/app/src/main/java/io/github/muntashirakon/AppManager/activities/AppUsageActivity.java b/app/src/main/java/io/github/muntashirakon/AppManager/activities/AppUsageActivity.java
new file mode 100644
index 00000000000..dd2f20c5aca
--- /dev/null
+++ b/app/src/main/java/io/github/muntashirakon/AppManager/activities/AppUsageActivity.java
@@ -0,0 +1,368 @@
+package io.github.muntashirakon.AppManager.activities;
+
+import android.Manifest;
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.AppOpsManager;
+import android.app.usage.UsageStats;
+import android.app.usage.UsageStatsManager;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.graphics.drawable.Drawable;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.ListView;
+import android.widget.Spinner;
+import android.widget.SpinnerAdapter;
+import android.widget.TextView;
+
+import java.lang.ref.WeakReference;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import io.github.muntashirakon.AppManager.R;
+
+public class AppUsageActivity extends AppCompatActivity {
+    private static final String TAG = "AppUsageActivity";
+    private static final String SYS_USAGE_STATS_SERVICE = "usagestats";
+
+    // These constants must be aligned with app_usage_dropdown_list array
+    // Same as UsageStatsManager.INTERVAL_*
+    private static final int USAGE_DAILY = 0;
+    private static final int USAGE_WEEKLY = 1;
+    private static final int USAGE_MONTHLY = 2;
+    private static final int USAGE_YEARLY = 3;
+
+    private UsageStatsManager mUsageStatsManager;
+    private AppUsageAdapter mAppUsageAdapter;
+    private int totalTimeInMs;
+    String[] app_usage_strings;
+    private int current_interval = USAGE_DAILY;
+
+    private static final int REQUEST_SETTINGS = 0;
+
+    @SuppressLint("WrongConstant")
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_app_usage);
+
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setTitle(getString(R.string.app_usage));
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+
+        app_usage_strings = getResources().getStringArray(R.array.app_usage_dropdown_list);
+
+        // Get usage stats
+        mUsageStatsManager = (UsageStatsManager) getSystemService(SYS_USAGE_STATS_SERVICE);
+        mAppUsageAdapter = new AppUsageAdapter(this);
+
+        ListView listView = findViewById(android.R.id.list);
+        listView.setDividerHeight(0);
+        listView.setAdapter(mAppUsageAdapter);
+
+        @SuppressLint("InflateParams")
+        View header = getLayoutInflater().inflate(R.layout.header_app_usage, null);
+        listView.addHeaderView(header);
+
+        Spinner mSpinner = findViewById(R.id.spinner_time_span);
+        SpinnerAdapter spinnerAdapter = ArrayAdapter.createFromResource(this,
+                R.array.app_usage_dropdown_list, android.R.layout.simple_spinner_dropdown_item);
+        mSpinner.setAdapter(spinnerAdapter);
+        mSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                current_interval = position;
+                getAppUsage();
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {}
+        });
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+        // Check permission
+        if (!checkUsageStatsPermission()) promptForUsageStatsPermission();
+        else getAppUsage();
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            finish();
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    private void getAppUsage() {
+        Calendar cal = Calendar.getInstance();
+        switch (current_interval) {
+            case USAGE_DAILY:
+                cal.add(Calendar.MINUTE, -1);
+                break;
+            case USAGE_WEEKLY:
+                cal.add(Calendar.DAY_OF_YEAR, -7);
+                break;
+            case USAGE_MONTHLY:
+                cal.add(Calendar.MONTH, -1);
+                break;
+            case USAGE_YEARLY:
+                cal.add(Calendar.YEAR, -1);
+                break;
+        }
+
+        int _try = 5; // try to get usage stat 5 times
+        List<UsageStats> usageStatsList;
+        do {
+            usageStatsList = mUsageStatsManager.queryUsageStats(current_interval,
+                    cal.getTimeInMillis(), System.currentTimeMillis());
+        } while (0 != --_try && usageStatsList.size() == 0);
+
+        // Filter unused apps
+        totalTimeInMs = 0;
+        for (int i = usageStatsList.size() - 1; i >= 0; i--) {
+            UsageStats usageStats = usageStatsList.get(i);
+            totalTimeInMs += usageStats.getTotalTimeInForeground();
+            if (usageStats.getTotalTimeInForeground() <= 0)
+                usageStatsList.remove(i);
+        }
+
+        Collections.sort(usageStatsList, new TimeInForegroundComparatorDesc());
+        mAppUsageAdapter.setDefaultList(usageStatsList);
+        setUsageSummary();
+    }
+
+    private void promptForUsageStatsPermission() {
+        new AlertDialog.Builder(this)
+                .setTitle(R.string.grant_usage_access)
+                .setMessage(R.string.grant_usage_acess_message)
+                .setPositiveButton(R.string.go, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        startActivityForResult(new Intent(
+                                Settings.ACTION_USAGE_ACCESS_SETTINGS), REQUEST_SETTINGS);
+                    }
+                })
+                .setNegativeButton(getString(R.string.go_back), new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        finish();
+                    }
+                }).setCancelable(false).show();
+    }
+
+    @SuppressLint("InlinedApi")
+    private boolean checkUsageStatsPermission() {
+        AppOpsManager appOpsManager = (AppOpsManager) getSystemService(APP_OPS_SERVICE);
+        assert appOpsManager != null;
+        final int mode = appOpsManager.unsafeCheckOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS, android.os.Process.myUid(), getPackageName());
+        return mode == AppOpsManager.MODE_DEFAULT ?
+                (checkCallingOrSelfPermission(Manifest.permission.PACKAGE_USAGE_STATS) == PackageManager.PERMISSION_GRANTED)
+                : (mode == AppOpsManager.MODE_ALLOWED);
+    }
+
+    private void setUsageSummary() {
+        TextView timeUsed = findViewById(R.id.time_used);
+        TextView timeRange = findViewById(R.id.time_range);
+        timeUsed.setText(formattedTime(this, totalTimeInMs));
+        switch (current_interval) {
+            case USAGE_DAILY:
+                timeRange.setText(R.string.usage_today);
+                break;
+            case USAGE_WEEKLY:
+                timeRange.setText(R.string.usage_7_days);
+                break;
+            case USAGE_MONTHLY:
+                timeRange.setText(R.string.usage_30_days);
+                break;
+            case USAGE_YEARLY:
+                timeRange.setText(R.string.usage_365_days);
+                break;
+        }
+    }
+
+    private static String formattedTime(Activity activity, long time) {
+        time /= 60000; // minutes
+        long month, day, hour, min;
+        month = time / 43200; time %= 43200;
+        day = time / 1440; time %= 1440;
+        hour = time / 60;
+        min = time % 60;
+        String fTime = "";
+        int count = 0;
+        if (month != 0){
+            fTime += String.format(activity.getString(month > 0 ? R.string.usage_months : R.string.usage_month), month);
+            ++count;
+        }
+        if (day != 0) {
+            fTime += (count > 0 ? " " : "") + String.format(activity.getString(
+                    day > 1 ? R.string.usage_days : R.string.usage_day), day);
+            ++count;
+        }
+        if (hour != 0) {
+            fTime += (count > 0 ? " " : "") + String.format(activity.getString(R.string.usage_hour), hour);
+            ++count;
+        }
+        if (min != 0) {
+            fTime += (count > 0 ? " " : "") + String.format(activity.getString(R.string.usage_min), min);
+        } else {
+            if (count == 0) fTime = activity.getString(R.string.usage_less_than_a_minute);
+        }
+        return fTime;
+    }
+
+    private static class TimeInForegroundComparatorDesc implements Comparator<UsageStats> {
+
+        @Override
+        public int compare(UsageStats left, UsageStats right) {
+            return Long.compare(right.getTotalTimeInForeground(), left.getTotalTimeInForeground());
+        }
+    }
+
+    static class AppUsageAdapter extends BaseAdapter {
+        static DateFormat sSimpleDateFormat = new SimpleDateFormat("MMM d, yyyy HH:mm:ss", Locale.getDefault());
+
+        private LayoutInflater mLayoutInflater;
+        private List mAdapterList;
+        private static PackageManager mPackageManager;
+        private Activity mActivity;
+
+        static class ViewHolder {
+            ImageView icon;
+            TextView label;
+            TextView usage;
+            IconAsyncTask iconLoader;
+        }
+
+        AppUsageAdapter(@NonNull Activity activity) {
+            mLayoutInflater = activity.getLayoutInflater();
+            mPackageManager = activity.getPackageManager();
+            mActivity = activity;
+        }
+
+        void setDefaultList(List<UsageStats> list) {
+//            mDefaultList = list;
+            mAdapterList = list;
+            notifyDataSetChanged();
+        }
+
+        @Override
+        public int getCount() {
+            return mAdapterList == null ? 0 : mAdapterList.size();
+        }
+
+        @Override
+        public Object getItem(int position) {
+            return mAdapterList.get(position);
+        }
+
+        @Override
+        public long getItemId(int position) {
+            return position;
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup parent) {
+            ViewHolder holder;
+            if (convertView == null) {
+                convertView = mLayoutInflater.inflate(R.layout.item_icon_title_subtitle, parent, false);
+                holder = new ViewHolder();
+                holder.icon = convertView.findViewById(R.id.item_icon);
+                holder.label = convertView.findViewById(R.id.item_title);
+                holder.usage = convertView.findViewById(R.id.item_subtitle);
+                convertView.setTag(holder);
+            } else {
+                holder = (ViewHolder) convertView.getTag();
+                if(holder.iconLoader != null) holder.iconLoader.cancel(true);
+            }
+
+            UsageStats usageStats = (UsageStats) mAdapterList.get(position);
+            // Set label (or package name on failure)
+            try {
+                ApplicationInfo applicationInfo = mPackageManager.getApplicationInfo(usageStats.getPackageName(), 0);
+                holder.label.setText(mPackageManager.getApplicationLabel(applicationInfo));
+                // Set icon
+                holder.iconLoader = new IconAsyncTask(holder.icon, applicationInfo);
+                holder.iconLoader.execute();
+            } catch (PackageManager.NameNotFoundException e) {
+                holder.label.setText(usageStats.getPackageName());
+                holder.icon.setImageDrawable(mPackageManager.getDefaultActivityIcon());
+            }
+            // Set usage
+            long lastTimeUsed = usageStats.getLastTimeUsed();
+            String string;
+            string = formattedTime(mActivity, usageStats.getTotalTimeInForeground());
+            if (lastTimeUsed > 1)
+                string += ", " + mActivity.getString(R.string.usage_last_used)
+                        + " " + sSimpleDateFormat.format(new Date(lastTimeUsed));
+
+            holder.usage.setText(string);
+            return convertView;
+        }
+
+        private static class IconAsyncTask extends AsyncTask<Void, Integer, Drawable> {
+            private WeakReference<ImageView> imageView = null;
+            ApplicationInfo info;
+
+            private IconAsyncTask(ImageView pImageViewWeakReference, ApplicationInfo info) {
+                link(pImageViewWeakReference);
+                this.info = info;
+            }
+
+            private void link(ImageView pImageViewWeakReference) {
+                imageView = new WeakReference<>(pImageViewWeakReference);
+            }
+
+            @Override
+            protected void onPreExecute() {
+                super.onPreExecute();
+                if (imageView.get() != null)
+                    imageView.get().setVisibility(View.INVISIBLE);
+            }
+
+            @Override
+            protected Drawable doInBackground(Void... voids) {
+                if (!isCancelled())
+                    return info.loadIcon(mPackageManager);
+                return null;
+            }
+
+            @Override
+            protected void onPostExecute(Drawable drawable) {
+                super.onPostExecute(drawable);
+                if (imageView.get() != null){
+                    imageView.get().setImageDrawable(drawable);
+                    imageView.get().setVisibility(View.VISIBLE);
+
+                }
+            }
+        }
+    }
+}
diff --git a/app/src/main/java/io/github/muntashirakon/AppManager/activities/MainActivity.java b/app/src/main/java/io/github/muntashirakon/AppManager/activities/MainActivity.java
index dd5500a98a1..a773f7c2181 100644
--- a/app/src/main/java/io/github/muntashirakon/AppManager/activities/MainActivity.java
+++ b/app/src/main/java/io/github/muntashirakon/AppManager/activities/MainActivity.java
@@ -220,6 +220,9 @@ public boolean onOptionsItemSelected(@NonNull MenuItem item) {
                 setSortBy(SORT_SIZE);
                 item.setChecked(true);
                 return true;
+            case R.id.action_app_usage:
+                Intent intent = new Intent(this, AppUsageActivity.class);
+                startActivity(intent);
             default:
                 return super.onOptionsItemSelected(item);
         }
diff --git a/app/src/main/res/drawable/ic_spinner_caret.xml b/app/src/main/res/drawable/ic_spinner_caret.xml
new file mode 100644
index 00000000000..22b0f54f5c2
--- /dev/null
+++ b/app/src/main/res/drawable/ic_spinner_caret.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0"
+    android:tint="?attr/colorControlNormal">
+    <path
+        android:pathData="M7,10l5,5,5-5z"
+        android:fillColor="@android:color/white" />
+</vector>
diff --git a/app/src/main/res/drawable/spinner_rounded_border.xml b/app/src/main/res/drawable/spinner_rounded_border.xml
new file mode 100644
index 00000000000..c7a4535e819
--- /dev/null
+++ b/app/src/main/res/drawable/spinner_rounded_border.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+<item>
+    <shape>
+        <solid android:color="@android:color/transparent" />
+        <stroke android:width="1dip" android:color="@android:color/darker_gray" />
+        <corners android:radius="15dp" />
+    </shape>
+</item>
+<item
+    android:drawable="@drawable/ic_spinner_caret"
+    android:gravity="end|center_vertical"
+    android:right="@dimen/padding_small"
+    />
+</layer-list>
diff --git a/app/src/main/res/layout/activity_app_usage.xml b/app/src/main/res/layout/activity_app_usage.xml
new file mode 100644
index 00000000000..521a19c3e83
--- /dev/null
+++ b/app/src/main/res/layout/activity_app_usage.xml
@@ -0,0 +1,18 @@
+<?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="wrap_content"
+    android:orientation="vertical"
+    tools:context=".activities.AppUsageActivity">
+
+    <ListView
+        android:id="@android:id/list"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:isScrollContainer="false"
+        android:nestedScrollingEnabled="false"
+        android:scrollbars="none" />
+
+</LinearLayout>
diff --git a/app/src/main/res/layout/header_app_usage.xml b/app/src/main/res/layout/header_app_usage.xml
new file mode 100644
index 00000000000..ddd25ebe4ce
--- /dev/null
+++ b/app/src/main/res/layout/header_app_usage.xml
@@ -0,0 +1,36 @@
+<?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:orientation="vertical">
+
+    <androidx.appcompat.widget.AppCompatSpinner
+        android:id="@+id/spinner_time_span"
+        android:layout_width="130dp"
+        android:layout_height="30dp"
+        android:layout_gravity="center"
+        android:layout_margin="@dimen/padding_large"
+        android:background="@drawable/spinner_rounded_border"
+        android:gravity="center"
+        android:paddingStart="@dimen/padding_small"
+        android:paddingEnd="@dimen/padding_large" />
+
+    <TextView
+        android:id="@+id/time_used"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textSize="36sp"
+        tools:text="@tools:sample/date/hhmm" />
+
+    <TextView
+        android:id="@+id/time_range"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="@dimen/padding_medium"
+        android:gravity="center"
+        tools:text="@tools:sample/date/day_of_week" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/menu/activity_main_actions.xml b/app/src/main/res/menu/activity_main_actions.xml
index 196b85d4a3d..1fdf600c3ec 100644
--- a/app/src/main/res/menu/activity_main_actions.xml
+++ b/app/src/main/res/menu/activity_main_actions.xml
@@ -52,5 +52,8 @@
         android:icon="@drawable/ic_refresh_black_24dp"
         android:title="@string/refresh"
         app:showAsAction="never" />
+    <item
+        android:id="@+id/action_app_usage"
+        android:title="@string/app_usage" />
 
 </menu>
\ No newline at end of file
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index ddca8124d17..3c5c2bac978 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -12,6 +12,12 @@
         <item>@string/signatures</item>
         <item>@string/shared_libs</item>
     </array>
+    <string-array name="app_usage_dropdown_list">
+        <item>@string/usage_daily</item>
+        <item>@string/usage_weekly</item>
+        <item>@string/usage_monthly</item>
+        <item>@string/usage_yearly</item>
+    </string-array>
     <string-array name="tracker_signatures">
         <item>com.facebook.accountkit</item>
         <item>com.ad4screen.sdk</item>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d074a3e7a6a..8fb3b4774f8 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -57,40 +57,41 @@
     <string name="about_message"><b>Main window</b>
         \n- Click will open “App Info” window
         \n- Long click will open ”App Details” window
+        \n- View app usage statistics by clicking on the three verticals dots on the right
         \n
         \n<b>Main window</b> color codes:
-        \n<u>Red</u>: Doesn\'t allow clearing data storage
-        \n<u>Magenta</u>: Persistent app
-        \n<u>Blue</u>: Stopped / Forced closed
-        \n<u>Orange</u> <i>Date</i>: Can read logs
-        \n<u>Orange</u> <i>UID</i>: Shared app
-        \n<u>Orange</u> <i>API</i>: Uses cleartext traffic
-        \n<u>Green</u>: Inactive app
-        \n<u>Yellow Star</u>: App in debug mode
-        \n<u>Ocean blue background</u>: Disabled app
+        \n<b>User</b>: Doesn\'t allow clearing data storage
+        \n<b>System</b>: Persistent app
+        \n<b>App Info</b>: Stopped / Forced closed
+        \n<b>User ID</b> <b>App Details Window</b>: Can read logs
+        \n<b>Uses Permissions</b> <b>Activities</b>: Shared app
+        \n<b>Exodus Window</b> <i>Date</i>: Uses cleartext traffic
+        \n<i>UID</i>: Inactive app
+        \n<i>API</i>: App in debug mode
+        \n<i>X</i>: Disabled app
         \n
-        \nApp can be <b>User</b> or <b>System</b> with following codes:
-        \n<i>X</i>: Multi architecture
-        \n<i>0</i>: App doesn\'t have code with it
-        \n<i>°</i>: App package in suspended state
-        \n<i>#</i>: The app has requested a large heap
-        \n<i>?</i>: Whether requested VM in safe mode
+        \nApp can be <i>0</i> or <i>°</i> with following codes:
+        \n<i>#</i>: Multi architecture
+        \n<i>?</i>: App doesn\'t have code with it
+        \n<i>_</i>: App package in suspended state
+        \n<i>~</i>: The app has requested a large heap
+        \n<i>debug</i>: Whether requested VM in safe mode
         \n
         \nVersion can have following prefixes:
-        \n<i>_</i>: No hardware acceleration
-        \n<i>~</i>: TestOnly mode
-        \n<i>debug</i>: Debuggable app
+        \n<u>Red</u>: No hardware acceleration
+        \n<u>Magenta</u>: TestOnly mode
+        \n<u>Blue</u>: Debuggable app
         \n
-        \nIn the <b>App Info</b> window, app that requested large heap have their <b>User ID</b>
+        \nIn the <u>Orange</u> window, app that requested large heap have their <u>Orange</u>
         colored red.
         \n
-        \n<b>App Details Window</b>
-        \n- Double clicking on any permission in the <b>Uses Permissions</b> tab will display a toast
+        \n<u>Orange</u>
+        \n- Double clicking on any permission in the <u>Green</u> tab will display a toast
         containing information about the permission.
-        \n- Available activities can be launched from the <b>Activities</b> tab. Also, customizable
+        \n- Available activities can be launched from the <u>Yellow Star</u> tab. Also, customizable
         shortcuts can be made.
         \n
-        \n<b>Exodus Window</b>
+        \n<u>Ocean blue background</u>
         \n- ° for \u03b5\' missing
         \n- ² for \u03b5\' Etip stand-by
         \n- µ for micro non-intrusive
@@ -147,7 +148,9 @@
     <string name="error_loading_icons">Error loading icons</string>
     <string name="license">License</string>
     <string name="license_message"><a href="https://www.gnu.org/licenses/gpl-3.0.html">GNU General
-        Public License v3.0</a></string>
+        Public License v3.0</a>
+        \n2020 (c) <a href="https://github.com/MuntashirAkon">Muntashir Al-Islam</a>
+    </string>
     <string name="third_party">Third-party Libraries and Icons</string>
     <string name="third_party_message">-
         <a href="https://github.com/material-components/material-components-android">Material
@@ -160,11 +163,13 @@
         (Apache 2.0)
     </string>
     <string name="credits">Credits</string>
-    <string name="credits_message">Authors of
-        <a href="https://bitbucket.org/oF2pks/fdroid-applications-info">Apps_packages Info</a>,
-        <a href="https://github.com/butzist/ActivityLauncher">Activity Launcher</a> and
-        <a href="https://github.com/billthefarmer/editor">Editor</a>. They have done most of the
-        <i>logical</i> works upon which this app is built.
+    <string name="credits_message">To the authors of
+        \n- <a href="https://bitbucket.org/oF2pks/fdroid-applications-info">Apps_packages Info</a>
+        \n- <a href="https://github.com/butzist/ActivityLauncher">Activity Launcher</a>
+        \n- <a href="https://github.com/billthefarmer/editor">Editor</a>
+        \n- <a href="https://codeberg.org/fynngodau/usageDirect">usageDirect</a> and
+        <a href="https://github.com/ColeMurray/UsageStatsSample">UsageStatsSample</a>
+        \nMost of the works done here are based on their works.
     </string>
     <string name="word_wrap">Toggle word wrap</string>
     <string name="class_viewer">Class Viewer</string>
@@ -180,4 +185,25 @@
     <string name="main_list_date_days">%s %d days</string>
     <string name="no_shared_libs">No shared libraries</string>
     <string name="no_tracking_class">No tracking class</string>
+    <string name="app_usage">App Usage</string>
+    <string name="usage_daily">Daily</string>
+    <string name="usage_weekly">Weekly</string>
+    <string name="usage_monthly">Monthly</string>
+    <string name="usage_yearly">Yearly</string>
+    <string name="usage_today">Today</string>
+    <string name="usage_7_days">Last 7 days</string>
+    <string name="usage_30_days">Last 30 days</string>
+    <string name="usage_365_days">Last 365 days</string>
+    <string name="usage_month">%d month</string>
+    <string name="usage_months">%d mos</string>
+    <string name="usage_day">%d day</string>
+    <string name="usage_days">%d days</string>
+    <string name="usage_hour">%d hr</string>
+    <string name="usage_min">%d min</string>
+    <string name="usage_less_than_a_minute">Less than a minute</string>
+    <string name="usage_last_used">Last used:</string>
+    <string name="go_back">Go back</string>
+    <string name="go">Go</string>
+    <string name="grant_usage_access">Grant Usage Access</string>
+    <string name="grant_usage_acess_message">Usage access is mandatory in order to display app usage information.</string>
 </resources>
diff --git a/fastlane/metadata/android/en-US/changelogs/87.txt b/fastlane/metadata/android/en-US/changelogs/87.txt
new file mode 100644
index 00000000000..9d3472747e3
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/87.txt
@@ -0,0 +1,4 @@
+- Added app usage statistics (optional, requires Usage Access permission)
+- Replaced many deprecated features with alternatives
+- Added swipe to refresh
+- Improved class and manifest viewers
diff --git a/fastlane/metadata/android/en-US/images/phoneScreenshots/13.png b/fastlane/metadata/android/en-US/images/phoneScreenshots/13.png
new file mode 100644
index 00000000000..f295a55dc25
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diff --git a/fastlane/metadata/android/en-US/images/phoneScreenshots/14.png b/fastlane/metadata/android/en-US/images/phoneScreenshots/14.png
new file mode 100644
index 00000000000..3cfe274c22d
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