While is a highly regarded suite of tools for designers and developers, the specific file name you mentioned— "xScope 4.6 [HCiSO].zip" —indicates it is a pirated or "cracked" version of the software distributed by the HCiSO group.
: Files from "warez" groups like HCiSO often contain malware, keyloggers, or backdoors. These can compromise your personal data or give attackers remote access to your Mac. xScope 4.6 [HCiSO].zip
: The Guides and Frames features are essential for checking alignments and ensuring your designs match pixel-perfect layouts. While is a highly regarded suite of tools
: The Dimensions tool allows you to instantly find the distance between any elements on your screen just by rolling your mouse over them. : The Guides and Frames features are essential
: You won't receive critical security patches or new feature updates. You also lose access to official technical support if something goes wrong. Review of the Official xScope 4.6