diff --git a/openVulkanoCpp/Host/iOS/SystemInfo.mm b/openVulkanoCpp/Host/iOS/SystemInfo.mm
index af0c922..54efb7e 100644
--- a/openVulkanoCpp/Host/iOS/SystemInfo.mm
+++ b/openVulkanoCpp/Host/iOS/SystemInfo.mm
@@ -64,29 +64,29 @@ namespace OpenVulkano
 		return 0;
 	}
 
-	std::string SystemInfo::GetUserName()
+	const std::string& SystemInfo::GetUserName()
 	{
 		return "";
 	}
 
-	std::string SystemInfo::GetHostName()
+	const std::string& SystemInfo::GetHostName()
 	{
 		static const std::string hostName = [[NSProcessInfo processInfo].hostName UTF8String];
 		return hostName;
 	}
 
-	std::string SystemInfo::GetDeviceName()
+	const std::string& SystemInfo::GetDeviceName()
 	{
 		static const std::string devName = [[[UIDevice currentDevice] name] UTF8String];
 		return devName;
 	}
 
-	std::string SystemInfo::GetDeviceVendorName()
+	const std::string& SystemInfo::GetDeviceVendorName()
 	{
 		return "Apple";
 	}
 
-	std::string SystemInfo::GetDeviceModelName()
+	const std::string& SystemInfo::GetDeviceModelName()
 	{
 		static std::string modelName;
 		if (modelName.empty())
@@ -99,7 +99,7 @@ namespace OpenVulkano
 		return modelName;
 	}
 
-	std::string SystemInfo::GetOsName()
+	const std::string& SystemInfo::GetOsName()
 	{
 		static const std::string osName = [[[UIDevice currentDevice] systemName] UTF8String];
 		return osName;
@@ -117,7 +117,7 @@ namespace OpenVulkano
 		return osv;
 	}
 
-	std::string SystemInfo::GetOsNameHumanReadable()
+	const std::string& SystemInfo::GetOsNameHumanReadable()
 	{
 		static std::string hrName;
 		if (hrName.empty())