diff --git a/app/build.gradle b/app/build.gradle
index 1e819f5e..76f7f0c1 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -11,7 +11,7 @@ android {
         minSdkVersion 23
         targetSdkVersion 29
         versionCode 1
-        versionName "1.0"
+        versionName "5.0.0"
         setProperty("archivesBaseName", "dialer")
     }
 
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index ad1d6c31..4935252b 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -21,6 +21,8 @@
             </intent-filter>
         </activity>
 
+        <activity android:name=".activities.MainActivity" />
+
         <activity
             android:name="com.simplemobiletools.commons.activities.AboutActivity"
             android:label="@string/about"
@@ -31,11 +33,20 @@
             android:label="@string/third_party_licences"
             android:parentActivityName="com.simplemobiletools.commons.activities.AboutActivity" />
 
+        <activity
+            android:name="com.simplemobiletools.commons.activities.CustomizationActivity"
+            android:label="@string/customize_colors"
+            android:parentActivityName=".activities.SettingsActivity"/>
+
         <activity
             android:name="com.simplemobiletools.commons.activities.FAQActivity"
             android:label="@string/frequently_asked_questions"
             android:parentActivityName="com.simplemobiletools.commons.activities.AboutActivity" />
 
-        <activity android:name=".activities.MainActivity"/>
+        <activity
+            android:name=".activities.SettingsActivity"
+            android:label="@string/settings"
+            android:parentActivityName=".activities.MainActivity"/>
+
     </application>
 </manifest>
diff --git a/app/src/main/kotlin/com/simplemobiletools/dialer/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/MainActivity.kt
index df11f0bb..ea133032 100644
--- a/app/src/main/kotlin/com/simplemobiletools/dialer/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/MainActivity.kt
@@ -1,13 +1,46 @@
 package com.simplemobiletools.dialer.activities
 
+import android.content.Intent
 import android.os.Bundle
-import androidx.appcompat.app.AppCompatActivity
+import android.view.Menu
+import android.view.MenuItem
+import com.simplemobiletools.commons.extensions.appLaunched
+import com.simplemobiletools.commons.models.FAQItem
+import com.simplemobiletools.dialer.BuildConfig
 import com.simplemobiletools.dialer.R
 
-class MainActivity : AppCompatActivity() {
+class MainActivity : SimpleActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+        appLaunched(BuildConfig.APPLICATION_ID)
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        menuInflater.inflate(R.menu.menu, menu)
+        updateMenuItemColors(menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
+            R.id.settings -> startActivity(Intent(applicationContext, SettingsActivity::class.java))
+            R.id.about -> launchAbout()
+            else -> return super.onOptionsItemSelected(item)
+        }
+        return true
+    }
+
+    private fun launchAbout() {
+        val licenses = 0
+
+        val faqItems = arrayListOf(
+            FAQItem(R.string.faq_2_title_commons, R.string.faq_2_text_commons),
+            FAQItem(R.string.faq_6_title_commons, R.string.faq_6_text_commons),
+            FAQItem(R.string.faq_7_title_commons, R.string.faq_7_text_commons)
+        )
+
+        startAboutActivity(R.string.app_name, licenses, BuildConfig.VERSION_NAME, faqItems, true)
     }
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/dialer/activities/SettingsActivity.kt b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/SettingsActivity.kt
new file mode 100644
index 00000000..5363eaf2
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/dialer/activities/SettingsActivity.kt
@@ -0,0 +1,47 @@
+package com.simplemobiletools.dialer.activities
+
+import android.os.Bundle
+import android.view.Menu
+import com.simplemobiletools.commons.extensions.beVisibleIf
+import com.simplemobiletools.commons.extensions.updateTextColors
+import com.simplemobiletools.dialer.R
+import com.simplemobiletools.dialer.extensions.config
+import kotlinx.android.synthetic.main.activity_settings.*
+import java.util.*
+
+class SettingsActivity : SimpleActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_settings)
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        setupCustomizeColors()
+        setupUseEnglish()
+        updateTextColors(settings_holder)
+        invalidateOptionsMenu()
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        updateMenuItemColors(menu)
+        return super.onCreateOptionsMenu(menu)
+    }
+
+    private fun setupCustomizeColors() {
+        settings_customize_colors_holder.setOnClickListener {
+            startCustomizationActivity()
+        }
+    }
+
+    private fun setupUseEnglish() {
+        settings_use_english_holder.beVisibleIf(config.wasUseEnglishToggled || Locale.getDefault().language != "en")
+        settings_use_english.isChecked = config.useEnglish
+        settings_use_english_holder.setOnClickListener {
+            settings_use_english.toggle()
+            config.useEnglish = settings_use_english.isChecked
+            System.exit(0)
+        }
+    }
+}
diff --git a/app/src/main/kotlin/com/simplemobiletools/dialer/extensions/Context.kt b/app/src/main/kotlin/com/simplemobiletools/dialer/extensions/Context.kt
new file mode 100644
index 00000000..ffd71d6e
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/dialer/extensions/Context.kt
@@ -0,0 +1,6 @@
+package com.simplemobiletools.dialer.extensions
+
+import android.content.Context
+import com.simplemobiletools.dialer.helpers.Config
+
+val Context.config: Config get() = Config.newInstance(applicationContext)
diff --git a/app/src/main/kotlin/com/simplemobiletools/dialer/helpers/Config.kt b/app/src/main/kotlin/com/simplemobiletools/dialer/helpers/Config.kt
new file mode 100644
index 00000000..00806000
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/dialer/helpers/Config.kt
@@ -0,0 +1,10 @@
+package com.simplemobiletools.dialer.helpers
+
+import android.content.Context
+import com.simplemobiletools.commons.helpers.BaseConfig
+
+class Config(context: Context) : BaseConfig(context) {
+    companion object {
+        fun newInstance(context: Context) = Config(context)
+    }
+}
diff --git a/app/src/main/kotlin/com/simplemobiletools/dialer/helpers/Constants.kt b/app/src/main/kotlin/com/simplemobiletools/dialer/helpers/Constants.kt
new file mode 100644
index 00000000..57c4b8d1
--- /dev/null
+++ b/app/src/main/kotlin/com/simplemobiletools/dialer/helpers/Constants.kt
@@ -0,0 +1 @@
+package com.simplemobiletools.dialer.helpers
diff --git a/app/src/main/res/layout/activity_settings.xml b/app/src/main/res/layout/activity_settings.xml
new file mode 100644
index 00000000..10f819bd
--- /dev/null
+++ b/app/src/main/res/layout/activity_settings.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/settings_scrollview"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <LinearLayout
+        android:id="@+id/settings_holder"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <RelativeLayout
+            android:id="@+id/settings_customize_colors_holder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackground"
+            android:paddingStart="@dimen/normal_margin"
+            android:paddingTop="@dimen/activity_margin"
+            android:paddingEnd="@dimen/normal_margin"
+            android:paddingBottom="@dimen/activity_margin">
+
+            <com.simplemobiletools.commons.views.MyTextView
+                android:id="@+id/settings_customize_colors"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_centerVertical="true"
+                android:paddingStart="@dimen/medium_margin"
+                android:text="@string/customize_colors" />
+
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:id="@+id/settings_use_english_holder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackground"
+            android:paddingStart="@dimen/normal_margin"
+            android:paddingTop="@dimen/activity_margin"
+            android:paddingEnd="@dimen/normal_margin"
+            android:paddingBottom="@dimen/activity_margin">
+
+            <com.simplemobiletools.commons.views.MySwitchCompat
+                android:id="@+id/settings_use_english"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@null"
+                android:clickable="false"
+                android:paddingStart="@dimen/medium_margin"
+                android:text="@string/use_english_language"
+                app:switchPadding="@dimen/medium_margin" />
+
+        </RelativeLayout>
+    </LinearLayout>
+</ScrollView>
diff --git a/app/src/main/res/menu/menu.xml b/app/src/main/res/menu/menu.xml
new file mode 100644
index 00000000..a0c32233
--- /dev/null
+++ b/app/src/main/res/menu/menu.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/settings"
+        android:title="@string/settings"
+        app:showAsAction="never" />
+    <item
+        android:id="@+id/about"
+        android:title="@string/about"
+        app:showAsAction="never" />
+</menu>