Xref solves the problem of, "who has the current file?" When more than one person works on the same version of a file--mistakes can happen (sometimes being very costly).

Avoid this problem with Xref.com. At its core is a file version management system with tools such as check in/check out, version history, and file assignment tracking. Xref ensures that only one person has a file checked out at a time, and it also allows you to assign files to project members and set due dates. Other features include: version roll backs, file trash (and recovery), and more!