and would not be marketed as a separate product. However, a few months later, the company said it would instead sell the server components as a US$49.99 add-on to Lion, distributed through the Mac App Store (as well as Lion itself). The combined cost of an upgrade to Lion and the purchase of the OS X Server add-on, which costs approximately US$50, was nonetheless significantly lower than the retail cost of Snow Leopard Server (US$499). Lion Server came with unlimited client licenses as did Snow Leopard Server. Lion Server includes new versions of iCal Server, Wiki Server, and Mail Server. More significantly, Lion Server can be used for iOS mobile device management. Starting with Apple Mac OS X Server Version 10.7 “Lion,” PostgreSQL replaces MySQL as the database provided with Mac OS X Server, coinciding with Oracle Corporation’s acquisition of Sun Microsystems and Oracle’s subsequent attempts to tighten MySQL’s licensing restrictions and to exert influence on MySQL’s previously open and independent development model. Like Lion, Mountain Lion had no separate server edition. An OS X Server package was available for Mountain Lion from the Mac App Store for US$19.99, which included a server management application called Server, as well as other additional administrative tools to manage client profiles and Xsan. Mountain Lion Server, like Lion Server, was provided with unlimited client licenses, and once purchased could be run on an unlimited number of systems. Server 5.7 (released September 28, 2018) stopped bundling open source services such as Calendar Server, Contacts Server, the Mail Server, DNS, DHCP, VPN Server, and Websites. Included services are now limited to Profile Manager, Open Directory and Xsan. Server 5.8 (released March 25, 2019) added new restrictions, payloads, and commands to Profile Manager. The Server app does not support versions of macOS newer than Monterey, marking the end of Mac OS X Server product line. Bundled applications Prior to OS X Mountain Lion One of Mac OS X Server's main administrative tools was the Server Administrator app, which allowed users to configure server services, and turn them on or off. RAID Admin was a utility for administering and controlling RAIDs, usually Xserve RAIDs. It was written in Java, and could run on Windows or Linux. Other bundled tools include: Server Preferences (application) Server Assistant Server Monitor System Image Utility Workgroup Manager Xgrid Admin After OS X Mountain Lion Beginning with the release of OS X Mountain