diff --git a/ComunicMessages.pro b/ComunicMessages.pro
index 577c525..13d60c9 100644
--- a/ComunicMessages.pro
+++ b/ComunicMessages.pro
@@ -13,7 +13,8 @@ SOURCES += \
     data/apirequestslist.cpp \
     helpers/configurationhelper.cpp \
     data/accountlogintokens.cpp \
-    widgets/mainwindow.cpp
+    widgets/mainwindow.cpp \
+    widgets/aboutthisappdialog.cpp
 
 HEADERS += \
     helpers/accounthelper.h \
@@ -28,8 +29,10 @@ HEADERS += \
     data/apirequestslist.h \
     helpers/configurationhelper.h \
     data/accountlogintokens.h \
-    widgets/mainwindow.h
+    widgets/mainwindow.h \
+    widgets/aboutthisappdialog.h
 
 FORMS += \
     widgets/loginwidget.ui \
-    widgets/mainwindow.ui
+    widgets/mainwindow.ui \
+    widgets/aboutthisappdialog.ui
diff --git a/widgets/aboutthisappdialog.cpp b/widgets/aboutthisappdialog.cpp
new file mode 100644
index 0000000..08e249e
--- /dev/null
+++ b/widgets/aboutthisappdialog.cpp
@@ -0,0 +1,14 @@
+#include "aboutthisappdialog.h"
+#include "ui_aboutthisappdialog.h"
+
+AboutThisAppDialog::AboutThisAppDialog(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::AboutThisAppDialog)
+{
+    ui->setupUi(this);
+}
+
+AboutThisAppDialog::~AboutThisAppDialog()
+{
+    delete ui;
+}
diff --git a/widgets/aboutthisappdialog.h b/widgets/aboutthisappdialog.h
new file mode 100644
index 0000000..726a019
--- /dev/null
+++ b/widgets/aboutthisappdialog.h
@@ -0,0 +1,28 @@
+/**
+ * About this app dialog
+ *
+ * @author Pierre HUBERT
+ */
+
+#ifndef ABOUTTHISAPPDIALOG_H
+#define ABOUTTHISAPPDIALOG_H
+
+#include <QDialog>
+
+namespace Ui {
+class AboutThisAppDialog;
+}
+
+class AboutThisAppDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit AboutThisAppDialog(QWidget *parent = nullptr);
+    ~AboutThisAppDialog();
+
+private:
+    Ui::AboutThisAppDialog *ui;
+};
+
+#endif // ABOUTTHISAPPDIALOG_H
diff --git a/widgets/aboutthisappdialog.ui b/widgets/aboutthisappdialog.ui
new file mode 100644
index 0000000..684d72b
--- /dev/null
+++ b/widgets/aboutthisappdialog.ui
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>AboutThisAppDialog</class>
+ <widget class="QDialog" name="AboutThisAppDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>About ComunicMessages</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QTextBrowser" name="textBrowser">
+     <property name="html">
+      <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Ubuntu'; font-size:11pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;This application is a client of the free and OpenSource social network Comunic.&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;The philosophy of Comunic is to respect its users privacy by all means.&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;Comunic is available everywhere :&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;* In your browser : https://comunic.io/&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;* In your smartphone : Search &amp;quot;Comunic&amp;quot; in the Play Store.&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; text-decoration: underline; color:#007af4;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;This application has been built by Pierre HUBERT.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>AboutThisAppDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>AboutThisAppDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index 49d64fc..4832695 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -1,5 +1,6 @@
 #include "mainwindow.h"
 #include "ui_mainwindow.h"
+#include "aboutthisappdialog.h"
 
 MainWindow::MainWindow(QWidget *parent) :
     QMainWindow(parent),
@@ -12,3 +13,13 @@ MainWindow::~MainWindow()
 {
     delete ui;
 }
+
+void MainWindow::on_actionAbout_Qt_triggered()
+{
+    QApplication::aboutQt();
+}
+
+void MainWindow::on_actionAbout_this_App_triggered()
+{
+    AboutThisAppDialog(this).exec();
+}
diff --git a/widgets/mainwindow.h b/widgets/mainwindow.h
index 9353441..87dd69d 100644
--- a/widgets/mainwindow.h
+++ b/widgets/mainwindow.h
@@ -1,3 +1,9 @@
+/**
+ * Main window of the project
+ *
+ * @author Pierre HUBERT
+ */
+
 #ifndef MAINWINDOW_H
 #define MAINWINDOW_H
 
@@ -15,6 +21,11 @@ public:
     explicit MainWindow(QWidget *parent = nullptr);
     ~MainWindow();
 
+private slots:
+    void on_actionAbout_Qt_triggered();
+
+    void on_actionAbout_this_App_triggered();
+
 private:
     Ui::MainWindow *ui;
 };
diff --git a/widgets/mainwindow.ui b/widgets/mainwindow.ui
index 6545006..e0899ea 100644
--- a/widgets/mainwindow.ui
+++ b/widgets/mainwindow.ui
@@ -23,8 +23,32 @@
      <height>22</height>
     </rect>
    </property>
+   <widget class="QMenu" name="menuAccount">
+    <property name="title">
+     <string>Account</string>
+    </property>
+   </widget>
+   <widget class="QMenu" name="menuHelp">
+    <property name="title">
+     <string>Help</string>
+    </property>
+    <addaction name="actionAbout_this_App"/>
+    <addaction name="actionAbout_Qt"/>
+   </widget>
+   <addaction name="menuAccount"/>
+   <addaction name="menuHelp"/>
   </widget>
   <widget class="QStatusBar" name="statusbar"/>
+  <action name="actionAbout_Qt">
+   <property name="text">
+    <string>About Qt</string>
+   </property>
+  </action>
+  <action name="actionAbout_this_App">
+   <property name="text">
+    <string>About this App</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>