diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 16698429b..c7049b242 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -40,7 +40,7 @@
         </activity>
 
         <activity
-            android:name=".activities.AboutActivity"
+            android:name="com.simplemobiletools.commons.activities.AboutActivity"
             android:label="@string/about"
             android:parentActivityName=".activities.MainActivity"/>
 
@@ -56,8 +56,7 @@
 
         <activity
             android:name=".activities.LicenseActivity"
-            android:label="@string/third_party_licences"
-            android:parentActivityName=".activities.AboutActivity"/>
+            android:label="@string/third_party_licences"/>
 
         <activity
             android:name=".activities.SettingsActivity"
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/activities/AboutActivity.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/activities/AboutActivity.kt
deleted file mode 100644
index 68c55dae0..000000000
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/activities/AboutActivity.kt
+++ /dev/null
@@ -1,115 +0,0 @@
-package com.simplemobiletools.calendar.activities
-
-
-import android.content.ActivityNotFoundException
-import android.content.Intent
-import android.net.Uri
-import android.os.Bundle
-import android.text.Html
-import android.text.method.LinkMovementMethod
-import android.view.View
-import com.simplemobiletools.calendar.BuildConfig
-import com.simplemobiletools.calendar.R
-import kotlinx.android.synthetic.main.activity_about.*
-import java.util.*
-
-class AboutActivity : SimpleActivity() {
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_about)
-
-        setupEmail()
-        setupMoreApps()
-        setupRateUs()
-        setupInvite()
-        setupLicense()
-        setupDonate()
-        setupFacebook()
-        setupGPlus()
-        setupCopyright()
-    }
-
-    private fun setupEmail() {
-        val email = getString(R.string.email)
-        val appName = getString(R.string.app_name)
-        val href = "<a href=\"mailto:$email?subject=$appName\">$email</a>"
-        about_email.text = Html.fromHtml(href)
-        about_email.movementMethod = LinkMovementMethod.getInstance()
-    }
-
-    private fun setupMoreApps() {
-        about_more_apps.setOnClickListener {
-            startActivity(Intent(Intent.ACTION_VIEW, Uri.parse("https://play.google.com/store/apps/dev?id=9070296388022589266")))
-        }
-    }
-
-    private fun setupCopyright() {
-        val versionName = BuildConfig.VERSION_NAME
-        val year = Calendar.getInstance().get(Calendar.YEAR)
-        val copyrightText = String.format(getString(R.string.copyright), versionName, year)
-        about_copyright.text = copyrightText
-    }
-
-    private fun setupRateUs() {
-        if (config.isFirstRun) {
-            about_rate_us.visibility = View.GONE
-        } else {
-            about_rate_us.setOnClickListener {
-                val uri = Uri.parse("market://details?id=$packageName")
-                try {
-                    startActivity(Intent(Intent.ACTION_VIEW, uri))
-                } catch (ignored: ActivityNotFoundException) {
-                    startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(getStoreUrl())))
-                }
-            }
-        }
-    }
-
-    fun setupInvite() {
-        about_invite.setOnClickListener {
-            val text = String.format(getString(R.string.share_text), getString(R.string.app_name), getStoreUrl())
-            Intent().apply {
-                action = Intent.ACTION_SEND
-                putExtra(Intent.EXTRA_SUBJECT, getString(R.string.app_name))
-                putExtra(Intent.EXTRA_TEXT, text)
-                type = "text/plain"
-                startActivity(Intent.createChooser(this, getString(R.string.invite_via)))
-            }
-        }
-    }
-
-    fun setupLicense() {
-        about_license.setOnClickListener {
-            val intent = Intent(applicationContext, LicenseActivity::class.java)
-            startActivity(intent)
-        }
-    }
-
-    fun setupDonate() {
-        about_donate.setOnClickListener {
-            startActivity(Intent(Intent.ACTION_VIEW, Uri.parse("http://simplemobiletools.github.io/donate")))
-        }
-    }
-
-    fun setupFacebook() {
-        about_facebook.setOnClickListener {
-            var link = "https://www.facebook.com/simplemobiletools"
-            try {
-                packageManager.getPackageInfo("com.facebook.katana", 0)
-                link = "fb://page/150270895341774"
-            } catch (ignored: Exception) {
-            }
-
-            startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(link)))
-        }
-    }
-
-    fun setupGPlus() {
-        about_gplus.setOnClickListener {
-            val link = "https://plus.google.com/communities/104880861558693868382"
-            startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(link)))
-        }
-    }
-
-    private fun getStoreUrl() = "https://play.google.com/store/apps/details?id=$packageName"
-}
diff --git a/app/src/main/kotlin/com/simplemobiletools/calendar/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/calendar/activities/MainActivity.kt
index 33f2b8d54..8ba45b5b0 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calendar/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calendar/activities/MainActivity.kt
@@ -8,6 +8,7 @@ import android.support.v4.view.ViewPager
 import android.view.Menu
 import android.view.MenuItem
 import android.view.View
+import com.simplemobiletools.calendar.BuildConfig
 import com.simplemobiletools.calendar.R
 import com.simplemobiletools.calendar.adapters.MyMonthPagerAdapter
 import com.simplemobiletools.calendar.adapters.MyYearPagerAdapter
@@ -16,6 +17,10 @@ import com.simplemobiletools.calendar.extensions.updateWidgets
 import com.simplemobiletools.calendar.fragments.EventListFragment
 import com.simplemobiletools.calendar.helpers.*
 import com.simplemobiletools.calendar.helpers.Formatter
+import com.simplemobiletools.commons.helpers.LICENSE_AMBILWARNA
+import com.simplemobiletools.commons.helpers.LICENSE_JODA
+import com.simplemobiletools.commons.helpers.LICENSE_KOTLIN
+import com.simplemobiletools.commons.helpers.LICENSE_STETHO
 import kotlinx.android.synthetic.main.activity_main.*
 import org.joda.time.DateTime
 import org.joda.time.DateTimeZone
@@ -60,8 +65,8 @@ class MainActivity : SimpleActivity(), EventListFragment.DeleteListener {
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
             R.id.change_view -> showViewDialog()
-            R.id.settings -> startActivity(Intent(applicationContext, SettingsActivity::class.java))
-            R.id.about -> startActivity(Intent(applicationContext, AboutActivity::class.java))
+            R.id.settings -> launchSettings()
+            R.id.about -> launchAbout()
             else -> return super.onOptionsItemSelected(item)
         }
         return true
@@ -99,6 +104,14 @@ class MainActivity : SimpleActivity(), EventListFragment.DeleteListener {
         }
     }
 
+    private fun launchSettings() {
+        startActivity(Intent(applicationContext, SettingsActivity::class.java))
+    }
+
+    private fun launchAbout() {
+        startAboutActivity(R.string.app_name, LICENSE_KOTLIN or LICENSE_AMBILWARNA or LICENSE_JODA or LICENSE_STETHO, BuildConfig.VERSION_NAME)
+    }
+
     private fun addNewEvent() {
         val tomorrowCode = Formatter.getDayCodeFromDateTime(DateTime(DateTimeZone.getDefault()).plusDays(1))
         Intent(applicationContext, EventActivity::class.java).apply {
diff --git a/app/src/main/res/layout/activity_about.xml b/app/src/main/res/layout/activity_about.xml
deleted file mode 100644
index 13d8d3599..000000000
--- a/app/src/main/res/layout/activity_about.xml
+++ /dev/null
@@ -1,122 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/about_scrollview"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:fillViewport="true">
-
-    <RelativeLayout
-        android:id="@+id/about_holder"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:padding="@dimen/activity_margin">
-
-        <TextView
-            android:id="@+id/about_website"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:autoLink="web"
-            android:text="@string/website"/>
-
-        <TextView
-            android:id="@+id/about_email_label"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@+id/about_website"
-            android:layout_marginTop="@dimen/activity_margin"
-            android:text="@string/email_label"/>
-
-        <TextView
-            android:id="@+id/about_email"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@+id/about_email_label"
-            android:paddingBottom="@dimen/activity_margin"
-            android:text="@string/email"/>
-
-        <TextView
-            android:id="@+id/about_more_apps"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@+id/about_email"
-            android:paddingBottom="@dimen/activity_margin"
-            android:paddingTop="@dimen/activity_margin"
-            android:text="@string/more_apps_underlined"
-            android:textColor="@color/color_primary"/>
-
-        <TextView
-            android:id="@+id/about_invite"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@+id/about_more_apps"
-            android:paddingBottom="@dimen/activity_margin"
-            android:paddingTop="@dimen/activity_margin"
-            android:text="@string/invite_friends_underlined"
-            android:textColor="@color/color_primary"/>
-
-        <TextView
-            android:id="@+id/about_rate_us"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@+id/about_invite"
-            android:paddingBottom="@dimen/activity_margin"
-            android:paddingTop="@dimen/activity_margin"
-            android:text="@string/rate_us_underlined"
-            android:textColor="@color/color_primary"/>
-
-        <TextView
-            android:id="@+id/about_license"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@+id/about_rate_us"
-            android:paddingBottom="@dimen/activity_margin"
-            android:paddingTop="@dimen/activity_margin"
-            android:text="@string/third_party_licences_underlined"
-            android:textColor="@color/color_primary"/>
-
-        <TextView
-            android:id="@+id/about_donate"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@+id/about_license"
-            android:paddingBottom="@dimen/activity_margin"
-            android:paddingTop="@dimen/activity_margin"
-            android:text="@string/donate_underlined"
-            android:textColor="@color/color_primary"/>
-
-        <TextView
-            android:id="@+id/about_follow_us"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_below="@+id/about_donate"
-            android:paddingTop="@dimen/activity_margin"
-            android:text="@string/follow_us"/>
-
-        <ImageView
-            android:id="@+id/about_facebook"
-            android:layout_width="@dimen/social_logo"
-            android:layout_height="@dimen/social_logo"
-            android:layout_below="@+id/about_follow_us"
-            android:src="@mipmap/facebook"/>
-
-        <ImageView
-            android:id="@+id/about_gplus"
-            android:layout_width="@dimen/social_logo"
-            android:layout_height="@dimen/social_logo"
-            android:layout_below="@+id/about_follow_us"
-            android:layout_toEndOf="@+id/about_facebook"
-            android:layout_toRightOf="@+id/about_facebook"
-            android:src="@mipmap/gplus"/>
-
-        <TextView
-            android:id="@+id/about_copyright"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_alignParentBottom="true"
-            android:layout_below="@+id/about_gplus"
-            android:gravity="center_horizontal|bottom"
-            android:paddingTop="@dimen/activity_margin"
-            android:text="v1.0\nCopyright © Simple Mobile Tools 2016"/>
-    </RelativeLayout>
-</ScrollView>