diff --git a/README.md b/README.md
index a78174d..63c71ca 100644
--- a/README.md
+++ b/README.md
@@ -107,4 +107,12 @@ qDebug() << zcs->txt["Qt"];
 
 Qt5
 
-On Linux, libavahi-client-dev and libavahi-common-dev
\ No newline at end of file
+On Linux, libavahi-client-dev and libavahi-common-dev
+
+### Apple App Store deployment
+
+Publishing GPL software in the App Store is a [violation of the GPL](https://news.ycombinator.com/item?id=3488833).  If you need to publish an app in the Apple App Store that uses QZeroConf, please contact me for a copy of QZeroConf with a BSD licence.
+
+### iOS device sleep
+
+When iOS puts the device to sleep, it breaks the DNS-SD browser and service publisher.  The only way around this is to call stopServicePublish() and stopBrowser() when the application state changes to Qt::ApplicationSuspended (sleep) and then call start startPublish() and startBrowser() when the application state changes to Qt::ApplicationActive (wake).  See appStateChanged() in example.
diff --git a/example/window.cpp b/example/window.cpp
index f58e85f..757f4a9 100644
--- a/example/window.cpp
+++ b/example/window.cpp
@@ -24,6 +24,7 @@
    Example app to demonstrate service publishing and service discovery
 ---------------------------------------------------------------------------------------------------
 **************************************************************************************************/
+#include <QGuiApplication>
 #include <QVBoxLayout>
 #include <QPushButton>
 #include <QTableWidgetItem>
@@ -54,9 +55,9 @@ mainWindow::mainWindow()
 
 	connect(&zeroConf, SIGNAL(serviceAdded(QZeroConfService *)), this, SLOT(addService(QZeroConfService *)));
 	connect(&zeroConf, SIGNAL(serviceRemoved(QZeroConfService *)), this, SLOT(removeService(QZeroConfService *)));
+	connect(qGuiApp, SIGNAL(applicationStateChanged(Qt::ApplicationState)), this, SLOT(appStateChanged(Qt::ApplicationState)));
 
-	zeroConf.startBrowser("_qtzeroconf_test._tcp");
-	startPublish();
+	publishEnabled = 1;
 }
 
 void mainWindow::buildGUI()
@@ -68,13 +69,13 @@ void mainWindow::buildGUI()
 	button->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
 	layout->addWidget(button);
 	layout->setAlignment(button, Qt::AlignHCenter);
-	connect(button, SIGNAL(clicked()), this, SLOT(startPublish()));
+	connect(button, &QPushButton::clicked, this, &mainWindow::startPublishClicked);
 
 	button = new QPushButton(tr(" Disable Publish "));
 	button->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
 	layout->addWidget(button);
 	layout->setAlignment(button, Qt::AlignHCenter);
-	connect(button, SIGNAL(clicked()), this, SLOT(stopPublish()));
+	connect(button, &QPushButton::clicked, this, &mainWindow::stopPublishClicked);
 
 	table.verticalHeader()->hide();
 	table.horizontalHeader()->hide();
@@ -102,21 +103,39 @@ QString mainWindow::buildName(void)
     return name;
 }
 
+void mainWindow::appStateChanged(Qt::ApplicationState state)
+{
+	if (state == Qt::ApplicationSuspended) {
+		zeroConf.stopServicePublish();
+		zeroConf.stopBrowser();
+	}
+	else if (state == Qt::ApplicationActive) {
+		if (publishEnabled && !zeroConf.publishExists())
+			startPublish();
+		if (!zeroConf.browserExists())
+			zeroConf.startBrowser("_qtzeroconf_test._tcp");
+	}
+}
+
 // ---------- Service Publish ----------
 
 void mainWindow::startPublish()
 {
-	if (publishEnabled)
-		return;
-	publishEnabled = 1;
-
 	zeroConf.clearServiceTxtRecords();
 	zeroConf.addServiceTxtRecord("Qt", "the best!");
 	zeroConf.addServiceTxtRecord("ZeroConf is nice too");
 	zeroConf.startServicePublish(buildName().toUtf8(), "_qtzeroconf_test._tcp", "local", 11437);
 }
 
-void mainWindow::stopPublish()
+void mainWindow::startPublishClicked()
+{
+	if (publishEnabled)
+		return;
+	publishEnabled = 1;
+	startPublish();
+}
+
+void mainWindow::stopPublishClicked()
 {
 	if (!publishEnabled)
 		return;
diff --git a/example/window.h b/example/window.h
index b259b50..b4a53f1 100644
--- a/example/window.h
+++ b/example/window.h
@@ -40,14 +40,16 @@ public:
 
 private:
 	void buildGUI();
+	void startPublish();
 	QString buildName(void);
 	QTableWidget table;
 	QZeroConf zeroConf;
 	bool publishEnabled;
 
 private slots:
-	void startPublish();
-	void stopPublish();
+	void appStateChanged(Qt::ApplicationState state);
+	void startPublishClicked();
+	void stopPublishClicked();
 	void addService(QZeroConfService *item);
 	void removeService(QZeroConfService *item);
 };