diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f2740ec..2240f62 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,7 +5,7 @@ before_script:
                    libxml2-devel dbus-daemon
                    glib2-devel dbus-devel gobject-introspection-devel
                    gettext-devel polkit-devel polkit-gnome git
-                   lcov pam-devel
+                   lcov pam-devel gtk3-devel
   - export LANG=C.UTF-8
 
 stages:
diff --git a/malcontent-control/application.c b/malcontent-control/application.c
new file mode 100644
index 0000000..94981ca
--- /dev/null
+++ b/malcontent-control/application.c
@@ -0,0 +1,92 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright © 2019 Endless Mobile, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *  - Philip Withnall <withnall@endlessm.com>
+ */
+
+#include "config.h"
+
+#include <glib.h>
+#include <glib-object.h>
+#include <glib/gi18n-lib.h>
+#include <gio/gio.h>
+#include <gtk/gtk.h>
+
+#include "application.h"
+
+
+/**
+ * MctApplication:
+ *
+ * #MctApplication is a top-level object representing the parental controls
+ * application.
+ *
+ * Since: 0.5.0
+ */
+struct _MctApplication
+{
+  GtkApplication parent_instance;
+};
+
+G_DEFINE_TYPE (MctApplication, mct_application, GTK_TYPE_APPLICATION)
+
+static void
+mct_application_init (MctApplication *self)
+{
+  /* Nothing to do here. */
+}
+
+static void
+mct_application_constructed (GObject *object)
+{
+  GApplication *application = G_APPLICATION (object);
+
+  g_application_set_application_id (application, "org.freedesktop.MalcontentControl");
+
+  /* Localisation */
+  bindtextdomain ("malcontent", PACKAGE_LOCALE_DIR);
+  bind_textdomain_codeset ("malcontent", "UTF-8");
+  textdomain ("malcontent");
+
+  g_set_application_name (_("Parental Controls"));
+  gtk_window_set_default_icon_name ("org.freedesktop.MalcontentControl");
+
+  G_OBJECT_CLASS (mct_application_parent_class)->constructed (object);
+}
+
+static void
+mct_application_class_init (MctApplicationClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->constructed = mct_application_constructed;
+}
+
+/**
+ * mct_application_new:
+ *
+ * Create a new #MctApplication.
+ *
+ * Returns: (transfer full): a new #MctApplication
+ * Since: 0.5.0
+ */
+MctApplication *
+mct_application_new (void)
+{
+  return g_object_new (MCT_TYPE_APPLICATION, NULL);
+}
diff --git a/malcontent-control/application.h b/malcontent-control/application.h
new file mode 100644
index 0000000..8c0f39a
--- /dev/null
+++ b/malcontent-control/application.h
@@ -0,0 +1,37 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright © 2019 Endless Mobile, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *  - Philip Withnall <withnall@endlessm.com>
+ */
+
+#pragma once
+
+#include <gio/gio.h>
+#include <glib.h>
+#include <glib-object.h>
+#include <gtk/gtk.h>
+
+
+G_BEGIN_DECLS
+
+#define MCT_TYPE_APPLICATION mct_application_get_type ()
+G_DECLARE_FINAL_TYPE (MctApplication, mct_application, MCT, APPLICATION, GtkApplication)
+
+MctApplication *mct_application_new (void);
+
+G_END_DECLS
diff --git a/malcontent-control/main.c b/malcontent-control/main.c
new file mode 100644
index 0000000..cce6f70
--- /dev/null
+++ b/malcontent-control/main.c
@@ -0,0 +1,37 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright © 2019 Endless Mobile, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *  - Philip Withnall <withnall@endlessm.com>
+ */
+
+#include <glib.h>
+#include <glib-object.h>
+#include <gio/gio.h>
+
+#include "application.h"
+
+
+int
+main (int   argc,
+      char *argv[])
+{
+  g_autoptr(MctApplication) app = NULL;
+
+  app = mct_application_new ();
+  return g_application_run (G_APPLICATION (app), argc, argv);
+}
diff --git a/malcontent-control/meson.build b/malcontent-control/meson.build
new file mode 100644
index 0000000..156cc7e
--- /dev/null
+++ b/malcontent-control/meson.build
@@ -0,0 +1,22 @@
+application_id = 'org.freedesktop.MalcontentControl'
+
+malcontent_control = executable('malcontent-control',
+  [
+    'application.c',
+    'application.h',
+    'main.c',
+  ],
+  dependencies: [
+    dependency('gio-2.0', version: '>= 2.44'),
+    dependency('glib-2.0', version: '>= 2.54.2'),
+    dependency('gobject-2.0', version: '>= 2.54'),
+    dependency('gtk+-3.0'),
+    libmalcontent_dep,
+  ],
+  include_directories: root_inc,
+  install: true,
+)
+
+# FIXME: Add icons and tests
+#subdir('icons')
+#subdir('tests')
diff --git a/meson.build b/meson.build
index 7d73ab1..ea9fea2 100644
--- a/meson.build
+++ b/meson.build
@@ -48,6 +48,7 @@ libglib_testing_dep = dependency(
 
 config_h = configuration_data()
 config_h.set_quoted('GETTEXT_PACKAGE', meson.project_name())
+config_h.set_quoted('PACKAGE_LOCALE_DIR', join_paths(get_option('localedir'), meson.project_name()))
 configure_file(
   output: 'config.h',
   configuration: config_h,
@@ -126,7 +127,8 @@ test_env = [
 ]
 
 subdir('accounts-service')
-subdir('malcontent-client')
 subdir('libmalcontent')
+subdir('malcontent-client')
+subdir('malcontent-control')
 subdir('pam')
 subdir('po')
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 18cd688..0b29360 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -2,4 +2,5 @@
 # Please keep this file sorted alphabetically.
 accounts-service/com.endlessm.ParentalControls.policy.in
 libmalcontent/manager.c
+malcontent-control/application.c
 pam/pam_malcontent.c