diff --git a/src/Makefile.am b/src/Makefile.am
index a79fdcb..91dcdc2 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -12,10 +12,11 @@ BUILT_SOURCES = \
 				$(NULL)
 
 astrognome_source_files = \
-						  ag-app.c     \
-						  ag-window.c  \
-						  ag-chart.c   \
-						  astrognome.c \
+						  ag-app.c      \
+						  ag-window.c   \
+						  ag-chart.c    \
+						  ag-settings.c \
+						  astrognome.c  \
 						  $(NULL)
 
 EXTRA_DIST = \
diff --git a/src/ag-settings.c b/src/ag-settings.c
new file mode 100644
index 0000000..da7d191
--- /dev/null
+++ b/src/ag-settings.c
@@ -0,0 +1,78 @@
+#include "ag-settings.h"
+
+G_DEFINE_TYPE(AgSettings, ag_settings, G_TYPE_OBJECT);
+
+#define AG_SETTINGS_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE((o), AG_TYPE_SETTINGS, AgSettingsPrivate))
+
+#define SETTINGS_SCHEMA_ID_WINDOW "eu.polonkai.gergely.Astrognome.state.window"
+#define SETTINGS_SCHEMA_ID_CHART  "eu.polonkai.gergely.Astrognome.state.chart"
+
+static AgSettings *singleton = NULL;
+
+struct _AgSettingsPrivate {
+    GSettings *settings_window;
+    GSettings *settings_chart;
+};
+
+static void
+ag_settings_init(AgSettings *settings)
+{
+    settings->priv = AG_SETTINGS_GET_PRIVATE(settings);
+    settings->priv->settings_window = g_settings_new(SETTINGS_SCHEMA_ID_WINDOW);
+    settings->priv->settings_chart = g_settings_new(SETTINGS_SCHEMA_ID_CHART);
+}
+
+static void
+ag_settings_dispose(GObject *object)
+{
+    AgSettings *settings = AG_SETTINGS(object);
+
+    g_clear_object(&settings->priv->settings_window);
+    g_clear_object(&settings->priv->settings_chart);
+
+    G_OBJECT_CLASS(ag_settings_parent_class)->dispose(object);
+}
+
+static void
+ag_settings_finalize(GObject *object)
+{
+    singleton = NULL;
+    G_OBJECT_CLASS(ag_settings_parent_class)->finalize(object);
+}
+
+static void
+ag_settings_class_init(AgSettingsClass *klass)
+{
+    GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
+
+    g_type_class_add_private(gobject_class, sizeof(AgSettingsPrivate));
+    gobject_class->dispose = ag_settings_dispose;
+    gobject_class->finalize = ag_settings_finalize;
+}
+
+AgSettings *
+ag_settings_get(void)
+{
+    if (!singleton) {
+        singleton = AG_SETTINGS(g_object_new(AG_TYPE_SETTINGS, NULL));
+    } else {
+        g_object_ref(singleton);
+    }
+
+    g_assert(singleton);
+
+    return singleton;
+}
+
+GSettings *
+ag_settings_peek_window_settings(AgSettings *settings)
+{
+    return settings->priv->settings_window;
+}
+
+GSettings *
+ag_settings_peek_chart_settings(AgSettings *settings)
+{
+    return settings->priv->settings_chart;
+}
+
diff --git a/src/ag-settings.h b/src/ag-settings.h
new file mode 100644
index 0000000..027ce82
--- /dev/null
+++ b/src/ag-settings.h
@@ -0,0 +1,41 @@
+#ifndef __AG_SETTINGS_H__
+#define __AG_SETTINGS_H__
+
+#include <gio/gio.h>
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define AG_TYPE_SETTINGS         (ag_settings_get_type())
+#define AG_SETTINGS(o)           (G_TYPE_CHECK_INSTANCE_CAST((o), AG_TYPE_SETTINGS, AgSettings))
+#define AG_SETTINGS_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), AG_TYPE_SETTINGS, AgSettingsClass))
+#define AG_IS_SETTINGS(o)        (G_TYPE_CHECK_INSTANCE_TYPE((o), AG_TYPE_SETTINGS))
+#define AG_IS_SETTINGS_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE((k), AG_TYPE_SETTINGS))
+#define AG_SETTINGS_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), AG_TYPE_SETTINGS, AgSettingsClass))
+
+typedef struct _AgSettings AgSettings;
+typedef struct _AgSettingsClass AgSettingsClass;
+typedef struct _AgSettingsPrivate AgSettingsPrivate;
+
+struct _AgSettings {
+    GObject parent_instance;
+
+    /*< private >*/
+    AgSettingsPrivate *priv;
+};
+
+struct _AgSettingsClass {
+    GObjectClass parent_class;
+};
+
+GType ag_settings_get_type(void);
+
+AgSettings *ag_settings_get(void);
+
+GSettings *ag_settings_peek_window_settings(AgSettings *settings);
+GSettings *ag_settings_peek_chart_settings(AgSettings *settings);
+
+G_END_DECLS
+
+#endif /* __AG_SETTINGS_H__ */
+