diff --git a/src/tools/iostool/iosdevicemanager.cpp b/src/tools/iostool/iosdevicemanager.cpp
index 0f24d58868f..2e6aa4ccf36 100644
--- a/src/tools/iostool/iosdevicemanager.cpp
+++ b/src/tools/iostool/iosdevicemanager.cpp
@@ -560,7 +560,7 @@ void IosDeviceManagerPrivate::addDevice(AMDeviceRef device)
         m_pendingLookups.remove(devId);
         devices << m_pendingLookups.values(QString());
         m_pendingLookups.remove(QString());
-        foreach (PendingDeviceLookup *devLookup, devices) {
+        for (PendingDeviceLookup *devLookup : qAsConst(devices)) {
             if (debugAll) qDebug() << "found pending op";
             devLookup->timer.stop();
             devLookup->callback(devId, device, devLookup->userData);
@@ -589,8 +589,10 @@ void IosDeviceManagerPrivate::removeDevice(AMDeviceRef device)
 
 void IosDeviceManagerPrivate::checkPendingLookups()
 {
-    foreach (const QString &deviceId, m_pendingLookups.keys()) {
-        foreach (PendingDeviceLookup *deviceLookup, m_pendingLookups.values(deviceId)) {
+    const QStringList keys = m_pendingLookups.keys();
+    for (const QString &deviceId : keys) {
+        const QList<PendingDeviceLookup *> values = m_pendingLookups.values(deviceId);
+        for (PendingDeviceLookup *deviceLookup : values) {
             if (!deviceLookup->timer.isActive()) {
                 m_pendingLookups.remove(deviceId, deviceLookup);
                 deviceLookup->callback(deviceId, 0, deviceLookup->userData);
diff --git a/src/tools/iostool/mobiledevicelib.cpp b/src/tools/iostool/mobiledevicelib.cpp
index 79c4054a0d4..025248262f1 100644
--- a/src/tools/iostool/mobiledevicelib.cpp
+++ b/src/tools/iostool/mobiledevicelib.cpp
@@ -44,7 +44,8 @@ MobileDeviceLib::MobileDeviceLib()
     if (!load())
         addError(QLatin1String("Error loading MobileDevice.framework"));
     if (!errors().isEmpty()) {
-        foreach (const QString &msg, errors())
+        const QStringList errs = errors();
+        for (const QString &msg : errs)
             addError(msg);
     }
     setLogLevel(5);
diff --git a/src/tools/iostool/relayserver.cpp b/src/tools/iostool/relayserver.cpp
index 03181a10ac4..312b3bd66d4 100644
--- a/src/tools/iostool/relayserver.cpp
+++ b/src/tools/iostool/relayserver.cpp
@@ -284,8 +284,7 @@ bool RelayServer::startServer()
 
 void RelayServer::stopServer()
 {
-    foreach (Relayer *connection, m_connections)
-        delete connection;
+    qDeleteAll(m_connections);
     if (m_ipv4Server.isListening())
         m_ipv4Server.close();
     if (m_ipv6Server.isListening())