Samsung Pay just recently celebrated its first birthday, not an insignificant feat for a mobile payment system limited to a single device vendor and very few devices. Of course, Samsung’s work is far from over. Following Google’s announcement of Android Pay supporting Visa Checkout and MasterCard’s Masterpass, Samsung is similarly boasting of new support for buying things through the mobile web. But via Masterpass only this time. In exchange for a lack of Visa support, Samsung Pay gains support for in-app payments as well as three new countries.