Hi, I'm trying to add the Napa development tools app to my Sharepoint 2013 On-Premises installation, according to the steps outlined in the following link: http://office.microsoft.com/en-us/store/add-apps-for-sharepoint-FX102836997.aspx?ai=WA102963791 But I get the message: "Sorry this app is not supported on your server." Is the Napa app only supported on Office 365? Are there any other steps needed to make it work on an on-premise Sharepoint 2013 server? Thanks, Sam

In the below article, in second point under "Avoiding the SharePoint Dev Machine", it has specified that we can not use Napa in on-premise environment. http://www.code-magazine.com/Article.aspx?quickid=1211031

Thanks.