The Apple iOS Volume Purchase Program (VPP) solution allows the customer to manage iOS app licensing, therefore simplifying the process to find, buy, and distribute apps and other data in bulk for an organization.
With VPP, you can use XenMobile to distribute public app store apps. VPP is not supported for Enterprise XenMobile Apps or for apps wrapped by using the MDX Toolkit.
Starting with XenMobile Server 10.7, you can distribute the XenMobile public store apps with VPP. Enhancements to the XenMobile Server and the Secure Hub store in this version address the previous limitations. For a list of known issues with deploying the XenMobile public store apps via VPP in older versions of XenMobile, and potential workarounds, see this article in the Citrix knowledge center.