diff --git a/app/src/main/java/com/google/reviewit/PagedChangeDetailsFragment.java b/app/src/main/java/com/google/reviewit/PagedChangeDetailsFragment.java
index 45c4eed..72f5de8 100644
--- a/app/src/main/java/com/google/reviewit/PagedChangeDetailsFragment.java
+++ b/app/src/main/java/com/google/reviewit/PagedChangeDetailsFragment.java
@@ -64,7 +64,11 @@
     fileListFragment.setChange(change);
     fragments.add(fileListFragment);
 
-    // TODO add more tabs, e.g. for change messages, approvals and post review
+    ReplyFragment replyFragment = new ReplyFragment();
+    replyFragment.setChange(change);
+    fragments.add(replyFragment);
+
+    // TODO add more tabs, e.g. for change messages and approvals
 
     ViewPager pager = ((ViewPager) v(R.id.pager));
     pager.setAdapter(
diff --git a/app/src/main/java/com/google/reviewit/PostReviewFragment.java b/app/src/main/java/com/google/reviewit/PostReviewFragment.java
index f855c53..d85b636 100644
--- a/app/src/main/java/com/google/reviewit/PostReviewFragment.java
+++ b/app/src/main/java/com/google/reviewit/PostReviewFragment.java
@@ -56,7 +56,8 @@
     Change change = getApp().getCurrentChange();
 
     setTitle(getString(R.string.detailed_change_title, change.info._number));
-    ((PostReviewView)v(R.id.postReview)).init(getApp(), this, vote,
-        SortChangesFragment.class);
+    ((PostReviewView) v(R.id.postReview))
+        .initWithExpandableCommitMessageAndApprovals(getApp(), this, vote,
+            SortChangesFragment.class);
   }
 }
diff --git a/app/src/main/java/com/google/reviewit/ReplyFragment.java b/app/src/main/java/com/google/reviewit/ReplyFragment.java
new file mode 100644
index 0000000..33fecb8
--- /dev/null
+++ b/app/src/main/java/com/google/reviewit/ReplyFragment.java
@@ -0,0 +1,65 @@
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.reviewit;
+
+import android.os.Bundle;
+import android.support.annotation.StringRes;
+
+import com.google.gerrit.extensions.common.ApprovalInfo;
+import com.google.reviewit.app.Change;
+import com.google.reviewit.widget.PostReviewView;
+
+import java.util.List;
+
+public class ReplyFragment extends PageFragment {
+  private Change change;
+
+  @Override
+  protected int getLayout() {
+    return R.layout.content_reply;
+  }
+
+  @Override
+  public @StringRes
+  int getTitle() {
+    return R.string.reply_title;
+  }
+
+  @Override
+  public void onActivityCreated(Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+
+    List<ApprovalInfo> codeReviewApprovals =
+        (change.info.labels != null
+            && change.info.labels.get("Code-Review") != null)
+            ? change.info.labels.get("Code-Review").all : null;
+    int vote = 0;
+    if (codeReviewApprovals != null) {
+      for (ApprovalInfo approval : codeReviewApprovals) {
+        if (approval._accountId.equals(getApp().getSelf()._accountId)) {
+          vote = approval.value;
+          break;
+        }
+      }
+    }
+
+    ((PostReviewView) v(R.id.postReview)).initForDisplayInTab(
+        getApp(), this, vote, PagedChangeDetailsFragment.class);
+  }
+
+  public void setChange(Change change) {
+    this.change = change;
+  }
+}
diff --git a/app/src/main/java/com/google/reviewit/widget/PostReviewView.java b/app/src/main/java/com/google/reviewit/widget/PostReviewView.java
index 1d62d19..1e657a1 100644
--- a/app/src/main/java/com/google/reviewit/widget/PostReviewView.java
+++ b/app/src/main/java/com/google/reviewit/widget/PostReviewView.java
@@ -53,26 +53,47 @@
   public PostReviewView(Context context, AttributeSet attrs, int defStyle) {
     super(context, attrs, defStyle);
     this.widgetUtil = new WidgetUtil(getContext());
-    inflate(context, R.layout.post_review, this);
   }
 
-  public void init(ReviewItApp app, BaseFragment origin, int vote,
-                   Class<? extends BaseFragment> target) {
+  public void initWithExpandableCommitMessageAndApprovals(
+      ReviewItApp app, BaseFragment origin, int vote,
+      Class<? extends BaseFragment> target) {
+    inflate(getContext(), R.layout.post_review, this);
+    init(app, origin, vote, target);
+  }
+
+  public void initForDisplayInTab(
+      ReviewItApp app, BaseFragment origin, int vote,
+      Class<? extends BaseFragment> target) {
+    inflate(getContext(), R.layout.post_review_tab, this);
+    init(app, origin, vote, target);
+  }
+
+  private void init(
+      ReviewItApp app, BaseFragment origin, int vote,
+      Class<? extends BaseFragment> target) {
     update(vote);
     Change change = app.getCurrentChange();
 
     init(origin, change, target);
     initLabels(change, vote);
-    ((ApprovalsView) findViewById(R.id.approvals)).displayApprovals(app,
-        change.info, origin);
+
+    ExpandableCommitMessageView expandableCommitMessage =
+        (ExpandableCommitMessageView) findViewById(R.id.commitMessage);
+    if (expandableCommitMessage != null) {
+      expandableCommitMessage.init(change);
+    }
+
+    ApprovalsView approvalsView =
+        ((ApprovalsView) findViewById(R.id.approvals));
+    if (approvalsView != null) {
+      approvalsView.displayApprovals(app, change.info, origin);
+    }
   }
 
   private void init(
       final BaseFragment origin, final Change change,
       final Class<? extends BaseFragment> target) {
-    ((ExpandableCommitMessageView)findViewById(R.id.commitMessage))
-        .init(change);
-
     findViewById(R.id.postReviewButton).setOnClickListener(
         new View.OnClickListener() {
           @Override
diff --git a/app/src/main/res/layout/content_reply.xml b/app/src/main/res/layout/content_reply.xml
new file mode 100644
index 0000000..b4cfd23
--- /dev/null
+++ b/app/src/main/res/layout/content_reply.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License. -->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  android:orientation="vertical"
+  android:layout_width="match_parent"
+  android:layout_height="match_parent">
+
+  <com.google.reviewit.widget.PostReviewView
+    android:id="@+id/postReview"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"/>
+</LinearLayout>
diff --git a/app/src/main/res/layout/post_review_tab.xml b/app/src/main/res/layout/post_review_tab.xml
new file mode 100644
index 0000000..82fe696
--- /dev/null
+++ b/app/src/main/res/layout/post_review_tab.xml
@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License. -->
+
+<LinearLayout
+  xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:app="http://schemas.android.com/apk/res-auto"
+  android:layout_width="match_parent"
+  android:layout_height="match_parent"
+  android:orientation="vertical"
+  app:layout_behavior="@string/appbar_scrolling_view_behavior">
+
+  <include layout="@layout/progress"/>
+
+  <ScrollView
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingLeft="5dp"
+    android:paddingRight="5dp"
+    android:layout_marginTop="5dp"
+    android:layout_weight="1">
+
+    <LinearLayout
+      android:orientation="vertical"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content">
+
+      <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/message"
+        android:textSize="15dp"/>
+
+      <EditText
+        android:id="@+id/changeMessageInput"
+        android:inputType="textMultiLine"
+        android:lines="6"
+        android:gravity="top|left"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:scrollbars="vertical"/>
+
+      <LinearLayout
+        android:id="@+id/voteInput"
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
+        android:layout_marginBottom="10dp">
+      </LinearLayout>
+    </LinearLayout>
+  </ScrollView>
+
+  <LinearLayout
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:layout_marginTop="5dp"
+    android:background="@drawable/navigation_button_bar">
+
+    <LinearLayout
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:orientation="horizontal">
+
+      <ImageView
+        android:id="@+id/emoticon"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="7dp"
+        android:layout_marginTop="3dp"
+        android:clickable="true"/>
+
+      <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"/>
+
+      <Button
+        android:id="@+id/postReviewButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:background="@color/button"
+        android:textColor="@color/buttonFont"
+        android:layout_marginTop="5dp"
+        android:layout_marginBottom="5dp"
+        android:paddingLeft="5dp"
+        android:paddingRight="5dp"
+        android:text="@string/publish"/>
+
+      <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"/>
+
+      <Button
+        android:id="@+id/postReviewAndSubmitButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:background="@color/button"
+        android:textColor="@color/buttonFont"
+        android:layout_marginTop="5dp"
+        android:layout_marginBottom="5dp"
+        android:paddingLeft="5dp"
+        android:paddingRight="5dp"
+        android:text="@string/publishAndSubmit"/>
+
+      <View
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_weight="1"/>
+    </LinearLayout>
+  </LinearLayout>
+</LinearLayout>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 08a5cc4..e79741b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -253,6 +253,9 @@
   <!-- FileListFragment -->
   <string name="file_list_title">Files</string>
 
+  <!-- ReplyFragment -->
+  <string name="reply_title">Reply</string>
+
   <!-- RelativeDateFormatter -->
   <string name="in_the_future">in the future</string>
   <string name="month">m</string>