Does the Office Web Apps Server trail version exist?

Hi everybody. Sorry, this may be a bit off topic... I am preparing for MCSE: SharePoint 2013 70-331 certification exam and therefore have SharePoint Server 2012 trail installed on a local virtual machine. As it turns out I also need to deploy the Office Web Apps Server but so far I failed to locate a trail or developer version of it. Does anybody know if it actually exists at all? Thanks.