Barely a week after introducing its Skype-rivaling international calling service, Internet telephony company Viber is again busy on Microsoft turf after it launched an application for Windows 8, The Next Web reports.

Viber had been a mobile-only service before it added desktop apps just over six months ago, and its dedicated Windows 8 client makes use of live tiles and lock screen notifications for Microsoft customers. Viber takes advantage of other Windows 8 features: it can be pinned to the Start menu for easy access, snapped to the side using Snap View, while it uses Microsoft’s Search charm to look up contacts.