diff --git a/app/src/main/res/layout/fragment_contributions_list.xml b/app/src/main/res/layout/fragment_contributions_list.xml
index 410c24c82..c68600f38 100644
--- a/app/src/main/res/layout/fragment_contributions_list.xml
+++ b/app/src/main/res/layout/fragment_contributions_list.xml
@@ -64,52 +64,56 @@
         >
 
         <com.google.android.material.floatingactionbutton.FloatingActionButton
-            android:id="@+id/fab_camera"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:tint="@color/button_blue"
-            android:visibility="gone"
-            app:backgroundTint="@color/main_background_light"
-            app:useCompatPadding="true"
-            app:elevation="@dimen/tiny_margin"
-            app:fabSize="mini"
-            app:srcCompat="@drawable/ic_photo_camera_white_24dp" />
+          android:id="@+id/fab_camera"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:contentDescription="@string/add_contribution_from_camera"
+          android:tint="@color/button_blue"
+          android:visibility="gone"
+          app:backgroundTint="@color/main_background_light"
+          app:elevation="@dimen/tiny_margin"
+          app:fabSize="mini"
+          app:srcCompat="@drawable/ic_photo_camera_white_24dp"
+          app:useCompatPadding="true" />
 
         <com.google.android.material.floatingactionbutton.FloatingActionButton
-            android:id="@+id/fab_gallery"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:tint="@color/button_blue"
-            android:visibility="gone"
-            app:backgroundTint="@color/main_background_light"
-            app:useCompatPadding="true"
-            app:elevation="@dimen/tiny_margin"
-            app:fabSize="mini"
-            app:srcCompat="@drawable/ic_photo_white_24dp" />
+          android:id="@+id/fab_gallery"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:contentDescription="@string/add_contribution_from_photos"
+          android:tint="@color/button_blue"
+          android:visibility="gone"
+          app:backgroundTint="@color/main_background_light"
+          app:elevation="@dimen/tiny_margin"
+          app:fabSize="mini"
+          app:srcCompat="@drawable/ic_photo_white_24dp"
+          app:useCompatPadding="true" />
 
         <com.google.android.material.floatingactionbutton.FloatingActionButton
-            android:id="@+id/fab_custom_gallery"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:tint="@color/button_blue"
-            android:visibility="gone"
-            app:backgroundTint="@color/main_background_light"
-            app:useCompatPadding="true"
-            app:elevation="@dimen/tiny_margin"
-            app:fabSize="mini"
-            app:srcCompat="@drawable/ic_custom_image_picker"
-            android:background="@drawable/commons"/>
+          android:id="@+id/fab_custom_gallery"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:background="@drawable/commons"
+          android:contentDescription="@string/add_contribution_from_contributions_gallery"
+          android:tint="@color/button_blue"
+          android:visibility="gone"
+          app:backgroundTint="@color/main_background_light"
+          app:elevation="@dimen/tiny_margin"
+          app:fabSize="mini"
+          app:srcCompat="@drawable/ic_custom_image_picker"
+          app:useCompatPadding="true" />
 
         <com.google.android.material.floatingactionbutton.FloatingActionButton
-            android:id="@+id/fab_plus"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:gravity="center_vertical"
-            android:visibility="visible"
-            app:backgroundTint="@color/status_bar_blue"
-            app:useCompatPadding="true"
-            app:elevation="@dimen/tiny_margin"
-            app:srcCompat="@drawable/ic_add_white_24dp" />
+          android:id="@+id/fab_plus"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:contentDescription="@string/add_new_contribution"
+          android:gravity="center_vertical"
+          android:visibility="visible"
+          app:backgroundTint="@color/status_bar_blue"
+          app:elevation="@dimen/tiny_margin"
+          app:srcCompat="@drawable/ic_add_white_24dp"
+          app:useCompatPadding="true" />
 
     </LinearLayout>
 
diff --git a/app/src/main/res/layout/nearby_card_view.xml b/app/src/main/res/layout/nearby_card_view.xml
index ce301c3b9..c88daa12f 100644
--- a/app/src/main/res/layout/nearby_card_view.xml
+++ b/app/src/main/res/layout/nearby_card_view.xml
@@ -10,19 +10,20 @@
   >
 
     <Button
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:id="@+id/permission_request_button"
-        android:text="@string/display_nearby_notification_summary"
-        android:layout_centerInParent="true"
-        android:layout_marginLeft="@dimen/activity_margin_horizontal"
-        android:layout_marginRight="@dimen/activity_margin_horizontal"
-        android:layout_marginTop="@dimen/activity_margin_horizontal"
-        android:minWidth="@dimen/fragment_height"
-        android:textColor="?attr/card_item_color"
-        android:singleLine="true"
-        android:theme="?attr/mainScreenNearbyPermissionbutton"
-        style="@style/Widget.AppCompat.Button.Borderless"/>
+      android:id="@+id/permission_request_button"
+      style="@style/Widget.AppCompat.Button.Borderless"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_centerInParent="true"
+      android:layout_marginLeft="@dimen/activity_margin_horizontal"
+      android:layout_marginTop="@dimen/activity_margin_horizontal"
+      android:layout_marginRight="@dimen/activity_margin_horizontal"
+      android:contentDescription="@string/display_nearby_notification_summary"
+      android:minWidth="@dimen/fragment_height"
+      android:singleLine="true"
+      android:text="@string/display_nearby_notification_summary"
+      android:textColor="?attr/card_item_color"
+      android:theme="?attr/mainScreenNearbyPermissionbutton" />
 
 
     <LinearLayout
diff --git a/app/src/main/res/layout/nearby_filter_all_items.xml b/app/src/main/res/layout/nearby_filter_all_items.xml
index 90cec8648..c5ae5a8fe 100644
--- a/app/src/main/res/layout/nearby_filter_all_items.xml
+++ b/app/src/main/res/layout/nearby_filter_all_items.xml
@@ -5,31 +5,34 @@
   android:background="@color/status_bar_blue">
 
   <include
-    android:layout_toStartOf="@+id/iv_toggle_chips"
     android:id="@+id/chip_view"
     layout="@layout/filter_chip_view"
-    android:layout_height="wrap_content"
     android:layout_width="match_parent"
-    android:background="@color/deleteRed" />
+    android:layout_height="wrap_content"
+    android:layout_toStartOf="@+id/iv_toggle_chips"
+    android:background="@color/deleteRed"
+    android:contentDescription="@string/nearby_filter_state" />
 
   <include
-    android:layout_toStartOf="@+id/iv_toggle_chips"
     android:id="@+id/search_view_layout"
     layout="@layout/filter_search_view_layout"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:layout_below="@id/chip_view" />
+    android:layout_below="@id/chip_view"
+    android:layout_toStartOf="@+id/iv_toggle_chips"
+    android:contentDescription="@string/nearby_filter_search" />
 
   <androidx.appcompat.widget.AppCompatImageView
     android:id="@+id/iv_toggle_chips"
     android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
     android:layout_alignParentEnd="true"
     android:layout_centerVertical="true"
-    android:scaleType="centerCrop"
-    app:srcCompat="@drawable/ic_expand_less_black_24dp"
-    android:tint="@color/white"
-    android:layout_height="wrap_content"
+    android:layout_gravity="center"
+    android:contentDescription="@string/nearby_filter_toggle"
     android:padding="12dp"
-    android:layout_gravity="center" />
+    android:scaleType="centerCrop"
+    android:tint="@color/white"
+    app:srcCompat="@drawable/ic_expand_less_black_24dp" />
 
 </RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/nearby_filter_list.xml b/app/src/main/res/layout/nearby_filter_list.xml
index e1362c286..c567abf82 100644
--- a/app/src/main/res/layout/nearby_filter_list.xml
+++ b/app/src/main/res/layout/nearby_filter_list.xml
@@ -9,12 +9,12 @@
     android:background="@color/white">
 
     <fr.free.nrw.commons.nearby.CheckBoxTriStates
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:id="@+id/checkbox_tri_states"
-        android:layout_margin="@dimen/dimen_10"
-        android:text="All"
-        />
+      android:id="@+id/checkbox_tri_states"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:layout_margin="@dimen/dimen_10"
+      android:contentDescription="@string/nearby_all"
+      android:text="@string/nearby_all" />
 
     <View
         android:layout_width="match_parent"
@@ -32,9 +32,10 @@
     <androidx.appcompat.widget.AppCompatButton
       android:id="@+id/btn_advanced_options"
       android:layout_width="match_parent"
-      android:background="@color/status_bar_blue"
-      android:text="@string/advanced_options"
-      android:textColor="@color/white"
+      android:layout_height="48dp"
       android:layout_marginTop="-48dp"
-      android:layout_height="48dp"/>
+      android:background="@color/status_bar_blue"
+      android:contentDescription="@string/advanced_options"
+      android:text="@string/advanced_options"
+      android:textColor="@color/white" />
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/nearby_permission_dialog.xml b/app/src/main/res/layout/nearby_permission_dialog.xml
index df62f3a9f..e122e5536 100644
--- a/app/src/main/res/layout/nearby_permission_dialog.xml
+++ b/app/src/main/res/layout/nearby_permission_dialog.xml
@@ -3,14 +3,15 @@
     android:layout_height="wrap_content" >
 
     <CheckBox
-        android:id="@+id/never_ask_again"
-        style="?android:attr/textAppearanceMedium"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/never_ask_again"
-        android:layout_marginTop="@dimen/tiny_padding"
-        android:layout_marginBottom="@dimen/tiny_padding"
-        android:layout_marginEnd="@dimen/dimen_20"
-        android:layout_marginStart="@dimen/dimen_20"/>
+      android:id="@+id/never_ask_again"
+      style="?android:attr/textAppearanceMedium"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_marginStart="@dimen/dimen_20"
+      android:layout_marginTop="@dimen/tiny_padding"
+      android:layout_marginEnd="@dimen/dimen_20"
+      android:layout_marginBottom="@dimen/tiny_padding"
+      android:contentDescription="@string/never_ask_again"
+      android:text="@string/never_ask_again" />
 
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/nearby_row_button.xml b/app/src/main/res/layout/nearby_row_button.xml
index b474b2b6a..97ab2b2da 100644
--- a/app/src/main/res/layout/nearby_row_button.xml
+++ b/app/src/main/res/layout/nearby_row_button.xml
@@ -11,58 +11,60 @@
   xmlns:android="http://schemas.android.com/apk/res/android">
 
     <LinearLayout
-        android:id="@+id/cameraButton"
-        android:layout_width="@dimen/dimen_0"
-        android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:padding="@dimen/standard_gap"
-        android:clickable="true"
-        android:orientation="vertical"
-        android:background="@drawable/button_background_selector"
-        >
+      android:id="@+id/cameraButton"
+      android:layout_width="@dimen/dimen_0"
+      android:layout_height="wrap_content"
+      android:layout_weight="1"
+      android:background="@drawable/button_background_selector"
+      android:clickable="true"
+      android:orientation="vertical"
+      android:padding="@dimen/standard_gap">
+
         <ImageView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            app:srcCompat="@drawable/ic_photo_camera_white_24dp"
-            android:tint="?attr/bookmarkButtonColor"/>
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:layout_gravity="center_horizontal"
+          android:tint="?attr/bookmarkButtonColor"
+          app:srcCompat="@drawable/ic_photo_camera_white_24dp" />
+
         <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:id="@+id/cameraButtonText"
-            android:paddingTop="@dimen/activity_margin_horizontal"
-            android:layout_gravity="center_horizontal"
-            android:text="CAMERA"
-            android:visibility="gone"
-            />
+          android:id="@+id/cameraButtonText"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:layout_gravity="center_horizontal"
+          android:paddingTop="@dimen/activity_margin_horizontal"
+          android:text="CAMERA"
+          android:visibility="gone" />
     </LinearLayout>
+
     <LinearLayout
-        android:id="@+id/galleryButton"
-        android:layout_width="@dimen/dimen_0"
-        android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:padding="@dimen/standard_gap"
-        android:clickable="true"
-        android:orientation="vertical"
-        android:background="@drawable/button_background_selector"
-        >
+      android:id="@+id/galleryButton"
+      android:layout_width="@dimen/dimen_0"
+      android:layout_height="wrap_content"
+      android:layout_weight="1"
+      android:background="@drawable/button_background_selector"
+      android:clickable="true"
+      android:contentDescription="@string/nearby_row_image"
+      android:orientation="vertical"
+      android:padding="@dimen/standard_gap">
+
         <ImageView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            app:srcCompat="@drawable/ic_photo_white_24dp"
-            android:tint="?attr/bookmarkButtonColor"
-            android:duplicateParentState="true"/>
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:layout_gravity="center_horizontal"
+          android:duplicateParentState="true"
+          android:tint="?attr/bookmarkButtonColor"
+          app:srcCompat="@drawable/ic_photo_white_24dp" />
+
         <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:id="@+id/galleryButtonText"
-            android:paddingTop="@dimen/activity_margin_horizontal"
-            android:layout_gravity="center_horizontal"
-            android:text="GALLERY"
-            android:duplicateParentState="true"
-            android:visibility="gone"
-            />
+          android:id="@+id/galleryButtonText"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:layout_gravity="center_horizontal"
+          android:duplicateParentState="true"
+          android:paddingTop="@dimen/activity_margin_horizontal"
+          android:text="GALLERY"
+          android:visibility="gone" />
     </LinearLayout>
 
     <LinearLayout
@@ -95,31 +97,31 @@
     </LinearLayout>
 
     <LinearLayout
-        android:id="@+id/iconOverflow"
-        android:layout_width="@dimen/dimen_0"
-        android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:padding="@dimen/standard_gap"
-        android:clickable="true"
-        android:orientation="vertical"
-        >
+      android:id="@+id/iconOverflow"
+      android:layout_width="@dimen/dimen_0"
+      android:layout_height="wrap_content"
+      android:layout_weight="1"
+      android:clickable="true"
+      android:orientation="vertical"
+      android:padding="@dimen/standard_gap">
+
         <ImageView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            app:srcCompat="@drawable/ic_overflow"
-            android:tint="?attr/bookmarkButtonColor"
-            android:duplicateParentState="true"/>
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:layout_gravity="center_horizontal"
+          android:duplicateParentState="true"
+          android:tint="?attr/bookmarkButtonColor"
+          app:srcCompat="@drawable/ic_overflow" />
+
         <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:id="@+id/iconOverflowText"
-            android:paddingTop="@dimen/activity_margin_horizontal"
-            android:layout_gravity="center_horizontal"
-            android:text="MORE"
-            android:duplicateParentState="true"
-            android:visibility="gone"
-            />
+          android:id="@+id/iconOverflowText"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:layout_gravity="center_horizontal"
+          android:duplicateParentState="true"
+          android:paddingTop="@dimen/activity_margin_horizontal"
+          android:text="MORE"
+          android:visibility="gone" />
 
     </LinearLayout>
 
diff --git a/app/src/main/res/layout/nearby_search_list_item_dark.xml b/app/src/main/res/layout/nearby_search_list_item_dark.xml
index e62ab7b42..732e46620 100644
--- a/app/src/main/res/layout/nearby_search_list_item_dark.xml
+++ b/app/src/main/res/layout/nearby_search_list_item_dark.xml
@@ -8,9 +8,9 @@
     android:background="@drawable/linearlayout_color_dark_selector">
 
     <ImageView
-        android:id="@+id/place_icon"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"/>
+      android:id="@+id/place_icon"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"/>
 
     <TextView
         android:id="@+id/place_text"
diff --git a/app/src/main/res/layout/notification_icon.xml b/app/src/main/res/layout/notification_icon.xml
index 301cac6af..71d65e68a 100644
--- a/app/src/main/res/layout/notification_icon.xml
+++ b/app/src/main/res/layout/notification_icon.xml
@@ -11,28 +11,28 @@
     tools:background="@color/black">
 
     <ImageView
-        android:id="@+id/cart_icon_image_view"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginEnd="@dimen/activity_margin_horizontal"
-        android:gravity="center"
-        android:layout_marginRight="@dimen/activity_margin_horizontal"
-        app:srcCompat="?attr/notification_icon_drawable" />
+      android:id="@+id/cart_icon_image_view"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_marginEnd="@dimen/activity_margin_horizontal"
+      android:layout_marginRight="@dimen/activity_margin_horizontal"
+      android:gravity="center"
+      app:srcCompat="?attr/notification_icon_drawable" />
 
-    <TextView xmlns:android="http://schemas.android.com/apk/res/android"
-        android:id="@+id/notification_count_badge"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_alignTop="@id/cart_icon_image_view"
-        android:layout_alignEnd="@id/cart_icon_image_view"
-        android:layout_alignRight="@id/cart_icon_image_view"
-        android:background="@drawable/notification_badge"
-        android:gravity="center"
-        android:padding="@dimen/miniscule_margin"
-        android:textColor="?attr/notification_icon_text_color"
-        android:textSize="7sp"
-        android:textStyle="bold"
-        android:visibility="gone"
-        tools:text="9+"
-        tools:visibility="visible" />
+    <TextView
+      android:id="@+id/notification_count_badge"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_alignTop="@id/cart_icon_image_view"
+      android:layout_alignEnd="@id/cart_icon_image_view"
+      android:layout_alignRight="@id/cart_icon_image_view"
+      android:background="@drawable/notification_badge"
+      android:gravity="center"
+      android:padding="@dimen/miniscule_margin"
+      android:textColor="?attr/notification_icon_text_color"
+      android:textSize="7sp"
+      android:textStyle="bold"
+      android:visibility="gone"
+      tools:text="9+"
+      tools:visibility="visible" />
 </RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/pic_of_day_app_widget.xml b/app/src/main/res/layout/pic_of_day_app_widget.xml
index bf222644a..46e00a0f4 100644
--- a/app/src/main/res/layout/pic_of_day_app_widget.xml
+++ b/app/src/main/res/layout/pic_of_day_app_widget.xml
@@ -12,21 +12,21 @@
         android:layout_height="wrap_content">
 
         <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="@dimen/dimen_10"
-            android:text="@string/app_widget_heading"
-            android:textColor="@color/white"
-            android:layout_centerHorizontal="true"
-            android:textSize="@dimen/subheading_text_size" />
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:layout_centerHorizontal="true"
+          android:layout_marginTop="@dimen/dimen_10"
+          android:text="@string/app_widget_heading"
+          android:textColor="@color/white"
+          android:textSize="@dimen/subheading_text_size" />
 
         <ImageView
-            android:id="@+id/camera_button"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:padding="@dimen/dimen_20"
-            android:layout_alignParentEnd="true"
-            android:src="@drawable/ic_photo_camera_white_24dp" />
+          android:id="@+id/camera_button"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:layout_alignParentEnd="true"
+          android:padding="@dimen/dimen_20"
+          android:src="@drawable/ic_photo_camera_white_24dp" />
 
     </RelativeLayout>
 
@@ -47,6 +47,6 @@
         android:id="@+id/appwidget_image"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:contentDescription="@string/appwidget_img" />
+		android:contentDescription="@string/appwidget_img" />
 
-</LinearLayout>
\ No newline at end of file
+</LinearLayout>
diff --git a/app/src/main/res/layout/popup_for_copyright.xml b/app/src/main/res/layout/popup_for_copyright.xml
index 79cd66199..0b4075b8d 100644
--- a/app/src/main/res/layout/popup_for_copyright.xml
+++ b/app/src/main/res/layout/popup_for_copyright.xml
@@ -35,5 +35,6 @@
     android:layout_below="@+id/copyright_messege"
     android:layout_centerHorizontal="true"
     android:layout_marginTop="37dp"
+    android:contentDescription="@string/ok"
     android:text="@string/ok" />
 </RelativeLayout>
diff --git a/app/src/main/res/layout/question_layout.xml b/app/src/main/res/layout/question_layout.xml
index 71abb38b5..6af04de08 100644
--- a/app/src/main/res/layout/question_layout.xml
+++ b/app/src/main/res/layout/question_layout.xml
@@ -14,14 +14,14 @@
         android:layout_marginVertical="@dimen/activity_margin_vertical" />
 
     <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        style="?android:textAppearanceMedium"
-        android:id="@+id/question_text"
-        android:layout_marginLeft="@dimen/activity_margin_horizontal"
-        android:layout_marginRight="@dimen/activity_margin_horizontal"
-        android:textColor="@color/secondaryTextColor"
-        android:text="Is Photograph of an Artwork allowed ?" />
+      android:id="@+id/question_text"
+      style="?android:textAppearanceMedium"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_marginLeft="@dimen/activity_margin_horizontal"
+      android:layout_marginRight="@dimen/activity_margin_horizontal"
+      android:text="Is Photograph of an Artwork allowed?"
+      android:textColor="@color/secondaryTextColor" />
 
 </LinearLayout>
 
diff --git a/app/src/main/res/layout/row_item_caption.xml b/app/src/main/res/layout/row_item_caption.xml
index bb5b73284..14eab3ad7 100644
--- a/app/src/main/res/layout/row_item_caption.xml
+++ b/app/src/main/res/layout/row_item_caption.xml
@@ -6,13 +6,14 @@
     android:weightSum="8">
 
     <androidx.appcompat.widget.AppCompatSpinner
-        android:id="@+id/spinner_caption_languages"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_weight="0"
-        android:minWidth="1dp"
-        android:padding="0dp"
-        android:spinnerMode="dialog" />
+      android:id="@+id/spinner_caption_languages"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_weight="0"
+      android:contentDescription="@string/row_item_caption"
+      android:minWidth="1dp"
+      android:padding="0dp"
+      android:spinnerMode="dialog" />
 
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/show_captions_descriptions.xml b/app/src/main/res/layout/show_captions_descriptions.xml
index 26d1fbc7a..43ade6569 100644
--- a/app/src/main/res/layout/show_captions_descriptions.xml
+++ b/app/src/main/res/layout/show_captions_descriptions.xml
@@ -13,14 +13,16 @@
     style="@style/MediaDetailTextLabel"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
-    android:text="Captions"
+    android:text="@string/show_captions"
     android:textColor="?attr/caption_description_text_color" />
 
   <ListView
     android:id="@+id/caption_listview"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:layout_below="@+id/caption_label" />
+    android:layout_below="@+id/caption_label"
+    android:contentDescription="@string/show_captions"
+    tools:ignore="DuplicateSpeakableTextCheck" />
 
   <TextView
     android:id="@+id/description_label"
@@ -29,7 +31,7 @@
     android:layout_height="wrap_content"
     android:layout_below="@+id/caption_listview"
     android:layout_marginTop="@dimen/dimen_10"
-    android:text="Descriptions"
+    android:text="@string/show_captions_description"
     android:textColor="?attr/caption_description_text_color" />
 
   <ProgressBar
diff --git a/app/src/main/res/layout/toolbar_location_picker.xml b/app/src/main/res/layout/toolbar_location_picker.xml
index 3252d4ac1..834f3cd0d 100644
--- a/app/src/main/res/layout/toolbar_location_picker.xml
+++ b/app/src/main/res/layout/toolbar_location_picker.xml
@@ -27,13 +27,14 @@
     android:layout_width="0dp"
     android:layout_height="wrap_content"
     android:layout_marginStart="72dp"
+    android:contentDescription="@string/pan_and_zoom_to_adjust"
     android:text="@string/pan_and_zoom_to_adjust"
     android:textColor="@color/white"
     android:textSize="14sp"
     android:textStyle="normal"
     app:layout_constraintBottom_toBottomOf="parent"
     app:layout_constraintStart_toStartOf="parent"
-    app:layout_constraintTop_toBottomOf="@+id/location_picker_toolbar_primary_text_view"/>
+    app:layout_constraintTop_toBottomOf="@+id/location_picker_toolbar_primary_text_view" />
 
   <ImageView
     android:id="@+id/mapbox_place_picker_toolbar_back_button"
diff --git a/app/src/main/res/layout/upload_categories_fragment.xml b/app/src/main/res/layout/upload_categories_fragment.xml
index 9af1a3a22..79ffe3db8 100644
--- a/app/src/main/res/layout/upload_categories_fragment.xml
+++ b/app/src/main/res/layout/upload_categories_fragment.xml
@@ -19,6 +19,7 @@
       android:layout_marginEnd="@dimen/standard_gap"
       android:layout_marginRight="@dimen/standard_gap"
       android:orientation="horizontal">
+
       <TextView
         android:id="@+id/tv_title"
         android:layout_width="wrap_content"
@@ -29,11 +30,12 @@
         android:textSize="@dimen/normal_text"
         android:textStyle="bold"
         tools:text="Step 1 of 15" />
+
       <ImageView
         android:id="@+id/tooltip"
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
-        android:src="@drawable/mapbox_info_icon_default"/>
+        android:src="@drawable/mapbox_info_icon_default" />
     </LinearLayout>
 
     <TextView
@@ -66,7 +68,7 @@
           android:imeOptions="actionSearch"
           android:inputType="text"
           android:maxLines="1"
-          app:allowFormatting="false"/>
+          app:allowFormatting="false" />
       </com.google.android.material.textfield.TextInputLayout>
 
       <ProgressBar
@@ -107,21 +109,24 @@
     android:padding="@dimen/standard_gap"
     android:orientation="horizontal"
     >
+
     <androidx.appcompat.widget.AppCompatButton
       android:id="@+id/btn_previous"
       style="@style/Widget.AppCompat.Button.Borderless"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_weight="1"
-      android:text="@string/previous"/>
+      android:contentDescription="@string/previous"
+      android:text="@string/previous" />
 
     <androidx.appcompat.widget.AppCompatButton
       android:id="@+id/btn_next"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_weight="1"
+      android:contentDescription="@string/next"
       android:text="@string/next"
-      android:textColor="@android:color/white"/>
+      android:textColor="@android:color/white" />
 
   </LinearLayout>
 
diff --git a/app/src/main/res/layout/upload_depicts_fragment.xml b/app/src/main/res/layout/upload_depicts_fragment.xml
index cf4e4607e..6519a141d 100644
--- a/app/src/main/res/layout/upload_depicts_fragment.xml
+++ b/app/src/main/res/layout/upload_depicts_fragment.xml
@@ -35,11 +35,12 @@
               android:textSize="@dimen/normal_text"
               android:textStyle="bold"
               tools:text="Step 1 of 15" />
+
             <ImageView
               android:id="@+id/tooltip"
               android:layout_width="wrap_content"
               android:layout_height="match_parent"
-              android:src="@drawable/mapbox_info_icon_default"/>
+              android:src="@drawable/mapbox_info_icon_default" />
         </LinearLayout>
 
     <TextView
@@ -129,26 +130,28 @@
       android:id="@+id/depicts_next"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
-      android:layout_marginBottom="24dp"
-      android:layout_marginEnd="24dp"
-      android:layout_marginRight="24dp"
-      android:layout_alignParentBottom="true"
       android:layout_alignParentEnd="true"
       android:layout_alignParentRight="true"
-      android:textColor="@android:color/white"
-      android:text="@string/next" />
+      android:layout_alignParentBottom="true"
+      android:layout_marginEnd="24dp"
+      android:layout_marginRight="24dp"
+      android:layout_marginBottom="24dp"
+      android:contentDescription="@string/next"
+      android:text="@string/next"
+      android:textColor="@android:color/white" />
 
     <Button
       android:id="@+id/depicts_previous"
       style="@style/Widget.AppCompat.Button.Borderless"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
-      android:layout_marginBottom="24dp"
+      android:layout_alignParentBottom="true"
       android:layout_marginEnd="@dimen/standard_gap"
       android:layout_marginRight="@dimen/standard_gap"
-      android:layout_alignParentBottom="true"
-      android:layout_toLeftOf="@id/depicts_next"
+      android:layout_marginBottom="24dp"
       android:layout_toStartOf="@id/depicts_next"
+      android:layout_toLeftOf="@id/depicts_next"
+      android:contentDescription="@string/previous"
       android:text="@string/previous" />
 
 </RelativeLayout>
diff --git a/app/src/main/res/layout/welcome_final.xml b/app/src/main/res/layout/welcome_final.xml
index 7072f74f1..3aab675d0 100644
--- a/app/src/main/res/layout/welcome_final.xml
+++ b/app/src/main/res/layout/welcome_final.xml
@@ -7,73 +7,71 @@
     >
 
     <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical"
-        android:gravity="center_vertical">
-    <LinearLayout
-        android:gravity="center_vertical"
-        android:layout_width="wrap_content"
-        android:layout_gravity="center_horizontal"
-        android:layout_height="180dp"
-        >
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:gravity="center_vertical"
+      android:orientation="vertical">
 
-        <ImageView
-            android:src="@drawable/welcome_wikipedia"
-            android:id="@+id/welcome_wikipedia"
-            android:layout_width="150dp"
-            android:layout_height="180dp"
-            android:contentDescription="@string/welcome_image_welcome_wikipedia"
-            />
+        <LinearLayout
+          android:layout_width="wrap_content"
+          android:layout_height="180dp"
+          android:layout_gravity="center_horizontal"
+          android:gravity="center_vertical">
 
-        <ImageView
-            android:src="@drawable/welcome_copyright"
-            android:layout_width="@dimen/giant_height"
-            android:layout_height="120dp"
-            android:layout_gravity="center"
-            android:layout_marginLeft="@dimen/standard_gap"
-            android:layout_marginStart="@dimen/standard_gap"
-            android:contentDescription="@string/welcome_image_welcome_copyright"
-            />
+            <ImageView
+              android:id="@+id/welcome_wikipedia"
+              android:layout_width="150dp"
+              android:layout_height="180dp"
+              android:contentDescription="@string/welcome_image_welcome_wikipedia"
+              android:src="@drawable/welcome_wikipedia" />
+
+            <ImageView
+              android:layout_width="@dimen/giant_height"
+              android:layout_height="120dp"
+              android:layout_gravity="center"
+              android:layout_marginStart="@dimen/standard_gap"
+              android:layout_marginLeft="@dimen/standard_gap"
+              android:contentDescription="@string/welcome_image_welcome_copyright"
+              android:src="@drawable/welcome_copyright" />
+
+        </LinearLayout>
+
+        <TextView
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:layout_gravity="center"
+          android:gravity="center_horizontal"
+          android:maxWidth="@dimen/very_large_height"
+          android:text="@string/welcome_final_text"
+          android:textAlignment="center"
+          android:textColor="@android:color/white"
+          android:textSize="@dimen/normal_text"
+          android:textStyle="bold" />
+
+        <Button
+          android:id="@+id/finishTutorialButton"
+          android:layout_width="120dp"
+          android:layout_height="@dimen/overflow_button_dimen"
+          android:layout_gravity="center"
+          android:layout_marginTop="@dimen/standard_gap"
+          android:background="@android:color/white"
+          android:contentDescription="@string/welcome_final_button_text"
+          android:text="@string/welcome_final_button_text"
+          android:textColor="#0c609c"
+          android:textSize="@dimen/normal_text"
+          android:textStyle="bold" />
 
     </LinearLayout>
 
     <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:maxWidth="@dimen/very_large_height"
-        android:text="@string/welcome_final_text"
-        android:layout_gravity="center"
-        android:textStyle="bold"
-        android:textSize="@dimen/normal_text"
-        android:textAlignment="center"
-        android:gravity="center_horizontal"
-        android:textColor="@android:color/white"
-        />
-
-    <Button
-        android:layout_width="120dp"
-        android:layout_height="@dimen/overflow_button_dimen"
-        android:layout_marginTop="@dimen/standard_gap"
-        android:text="@string/welcome_final_button_text"
-        android:id="@+id/finishTutorialButton"
-        android:textSize="@dimen/normal_text"
-        android:layout_gravity="center"
-        android:background="@android:color/white"
-        android:textColor="#0c609c"
-        android:textStyle="bold"
-        />
-
-    </LinearLayout>
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:id="@+id/welcomeInfo"
-        android:layout_alignParentBottom="true"
-        android:layout_alignParentRight="true"
-        android:textSize="@dimen/normal_text"
-        android:textColor="@android:color/white"
-        android:padding="@dimen/standard_gap"
-        android:layout_marginBottom="@dimen/standard_gap"
-        android:text="@string/welcome_help_button_text" />
+      android:id="@+id/welcomeInfo"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_alignParentRight="true"
+      android:layout_alignParentBottom="true"
+      android:layout_marginBottom="@dimen/standard_gap"
+      android:padding="@dimen/standard_gap"
+      android:text="@string/welcome_help_button_text"
+      android:textColor="@android:color/white"
+      android:textSize="@dimen/normal_text" />
 </RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index cc032ef40..4fb470e32 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,5 +1,29 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+  <!--accessibility UI description strings-->
+  <string name="commons_facebook">Commons Facebook Page</string>
+  <string name="commons_github">Commons Github Source Code</string>
+  <string name="commons_logo">Commons Logo</string>
+  <string name="commons_website">Commons Website</string>
+  <string name="exit_location_picker">Exit location picker</string>
+  <string name="submit">Submit</string>
+  <string name="add_another_description">Add another description</string>
+  <string name="add_new_contribution">Add new contribution</string>
+  <string name="add_contribution_from_camera">Add contribution from camera</string>
+  <string name="add_contribution_from_photos">Add contribution from Photos</string>
+  <string name="add_contribution_from_contributions_gallery">Add contribution from previous contributions gallery</string>
+  <string name="show_captions">Captions</string>
+  <string name="row_item_language_description">Language Description</string>
+  <string name="row_item_caption">Caption</string>
+  <string name="show_captions_description">Description</string>
+  <string name="nearby_row_image">Image</string>
+  <string name="nearby_all">All</string>
+  <string name="nearby_filter_toggle">Toggle Up</string>
+  <string name="nearby_filter_search">Search View</string>
+  <string name="nearby_filter_state">Place State</string>
+  <string name="appwidget_img">Pic of the Day</string>
+
+  <!--Other strings-->
   <plurals name="uploads_pending_notification_indicator">
     <item quantity="one">%1$d file uploading</item>
     <item quantity="other">%1$d files uploading</item>
@@ -188,10 +212,6 @@
   <string name="mapbox_commons_app_token">pk.eyJ1IjoibWFza2FyYXZpdmVrIiwiYSI6ImNqMmxvdzFjMTAwMHYzM283ZWM3eW5tcDAifQ.ib5SZ9EVjwJe6GSKve0bcg</string>
   <string name="_2fa_code">2FA Code</string>
   <string name="logout_verification">Do you really want to logout?</string>
-  <string name="commons_logo">Commons Logo</string>
-  <string name="commons_website">Commons Website</string>
-  <string name="commons_facebook">Commons Facebook Page</string>
-  <string name="commons_github">Commons Github Source Code</string>
   <string name="mediaimage_failed">Media Image Failed</string>
   <string name="no_subcategory_found">No subcategories found</string>
   <string name="no_parentcategory_found">No parent categories found</string>
@@ -286,7 +306,6 @@
   <string name="image_uploaded_by">Uploaded by: %1$s</string>
   <string name="block_notification_title">Blocked</string>
   <string name="block_notification">You are blocked from editing Commons</string>
-  <string name="appwidget_img">Pic of the Day</string>
   <string name="app_widget_heading">Pic of the Day</string>
   <string name="menu_search_button">Search</string>
   <string name="search_commons">Search Commons</string>
@@ -377,7 +396,6 @@
   <string name="step_count">Step %1$d of %2$d: %3$s</string>
   <string name="next">Next</string>
   <string name="previous">Previous</string>
-  <string name="submit">Submit</string>
   <string name="upload_title_duplicate" formatted="true">A file with the file name %1$s exists. Are you sure you want to proceed?\n\nNote: A suitable suffix will be added to the file name automatically.</string>
   <string name="map_application_missing">No compatible map application could be found on your device. Please install a map application to use this feature.</string>
   <string name="title_page_bookmarks_pictures">Pictures</string>
@@ -657,7 +675,6 @@ Upload your first media by tapping on the add button.</string>
   <string name="media_detail_in_all_languages">In all languages</string>
   <string name="choose_a_location">Choose a location</string>
   <string name="pan_and_zoom_to_adjust">Pan and zoom to adjust</string>
-  <string name="exit_location_picker">Exit location picker</string>
   <string name="select_location_location_picker">Select location</string>
   <string name="show_in_map_app">Show in map app</string>
   <string name="modify_location">Edit location</string>