diff --git a/app/build.gradle b/app/build.gradle
index 13a6939..275f1cd 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -61,4 +61,5 @@ dependencies {
     implementation 'com.github.Armen101:AudioRecordView:1.0.2'
     implementation 'androidx.documentfile:documentfile:1.0.1'
     implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/voicerecorder/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/voicerecorder/activities/MainActivity.kt
index 0534af0..9b005ee 100644
--- a/app/src/main/kotlin/com/simplemobiletools/voicerecorder/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/voicerecorder/activities/MainActivity.kt
@@ -126,7 +126,8 @@ class MainActivity : SimpleActivity() {
         val faqItems = arrayListOf(
             FAQItem(R.string.faq_1_title, R.string.faq_1_text),
             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_6_title_commons, R.string.faq_6_text_commons),
+            FAQItem(R.string.faq_9_title_commons, R.string.faq_9_text_commons)
         )
 
         startAboutActivity(R.string.app_name, licenses, BuildConfig.VERSION_NAME, faqItems, true)
diff --git a/app/src/main/kotlin/com/simplemobiletools/voicerecorder/fragments/MyViewPagerFragment.kt b/app/src/main/kotlin/com/simplemobiletools/voicerecorder/fragments/MyViewPagerFragment.kt
index 86d43e5..c43b518 100644
--- a/app/src/main/kotlin/com/simplemobiletools/voicerecorder/fragments/MyViewPagerFragment.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/voicerecorder/fragments/MyViewPagerFragment.kt
@@ -2,9 +2,9 @@ package com.simplemobiletools.voicerecorder.fragments
 
 import android.content.Context
 import android.util.AttributeSet
-import android.widget.RelativeLayout
+import androidx.constraintlayout.widget.ConstraintLayout
 
-abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet) : RelativeLayout(context, attributeSet) {
+abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet) : ConstraintLayout(context, attributeSet) {
     abstract fun onResume()
 
     abstract fun onDestroy()
diff --git a/app/src/main/res/layout/fragment_player.xml b/app/src/main/res/layout/fragment_player.xml
index c896330..827ec18 100644
--- a/app/src/main/res/layout/fragment_player.xml
+++ b/app/src/main/res/layout/fragment_player.xml
@@ -10,7 +10,6 @@
         android:id="@+id/recordings_placeholder"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_centerHorizontal="true"
         android:alpha="0.8"
         android:gravity="center"
         android:lineSpacingExtra="@dimen/small_margin"
@@ -23,20 +22,21 @@
     <com.simplemobiletools.commons.views.MyRecyclerView
         android:id="@+id/recordings_list"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_above="@+id/player_controls_wrapper"
+        android:layout_height="0dp"
         android:clipToPadding="false"
         android:scrollbars="none"
-        app:layoutManager="com.simplemobiletools.commons.views.MyLinearLayoutManager" />
+        app:layoutManager="com.simplemobiletools.commons.views.MyLinearLayoutManager"
+        app:layout_constraintBottom_toTopOf="@+id/player_controls_wrapper"
+        app:layout_constraintTop_toTopOf="parent" />
 
     <com.simplemobiletools.commons.views.FastScroller
         android:id="@+id/recordings_fastscroller"
         android:layout_width="wrap_content"
-        android:layout_height="match_parent"
-        android:layout_alignTop="@+id/recordings_list"
-        android:layout_alignBottom="@+id/recordings_list"
-        android:layout_alignParentEnd="true"
-        android:paddingStart="@dimen/normal_margin">
+        android:layout_height="0dp"
+        android:paddingStart="@dimen/normal_margin"
+        app:layout_constraintBottom_toBottomOf="@+id/recordings_list"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="@+id/recordings_list">
 
         <include layout="@layout/fastscroller_handle_vertical" />
 
@@ -46,7 +46,8 @@
         android:id="@+id/player_controls_wrapper"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
         tools:ignore="HardcodedText">
 
         <View
diff --git a/app/src/main/res/layout/fragment_recorder.xml b/app/src/main/res/layout/fragment_recorder.xml
index 9c7da65..81f911e 100644
--- a/app/src/main/res/layout/fragment_recorder.xml
+++ b/app/src/main/res/layout/fragment_recorder.xml
@@ -9,8 +9,7 @@
     <com.visualizer.amplitude.AudioRecordView
         android:id="@+id/recorder_visualizer"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_above="@+id/recording_duration"
+        android:layout_height="0dp"
         android:layout_margin="@dimen/big_margin"
         android:background="@drawable/frame_background"
         app:chunkAlignTo="center"
@@ -19,28 +18,32 @@
         app:chunkRoundedCorners="true"
         app:chunkSoftTransition="true"
         app:chunkSpace="1dp"
-        app:chunkWidth="3dp" />
+        app:chunkWidth="3dp"
+        app:layout_constraintBottom_toTopOf="@+id/recording_duration"
+        app:layout_constraintTop_toTopOf="parent" />
 
     <com.simplemobiletools.commons.views.MyTextView
         android:id="@+id/recording_duration"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_above="@+id/toggle_recording_button"
-        android:layout_centerHorizontal="true"
         android:layout_marginBottom="@dimen/bigger_margin"
         android:textSize="@dimen/extra_big_text_size"
+        app:layout_constraintBottom_toTopOf="@+id/toggle_recording_button"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
         tools:text="00:00" />
 
     <ImageView
         android:id="@+id/toggle_recording_button"
         android:layout_width="@dimen/toggle_recording_button_size"
         android:layout_height="@dimen/toggle_recording_button_size"
-        android:layout_alignParentBottom="true"
-        android:layout_centerHorizontal="true"
         android:layout_marginBottom="@dimen/big_margin"
         android:background="@drawable/circle_background"
         android:elevation="@dimen/medium_margin"
         android:padding="@dimen/normal_margin"
-        android:src="@drawable/ic_microphone_vector" />
+        android:src="@drawable/ic_microphone_vector"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
 
 </com.simplemobiletools.voicerecorder.fragments.RecorderFragment>