Network management provider Sandvine Inc. said Wednesday it has launched a smartphone application for mobile service providers to allow customers to manage their plans on their device. The SmartService app gives operators the ability to offer usage monitoring and plan upgrades to their customers, Waterloo, Ont.-based Sandvine said in a news release. “By placing a one-stop-shop for Internet data plans at the fingertips of subscribers, SmartService app provides the opportunity for operators to extend beyond traditional volume-based plans (by megabyte or gigabyte) to value-based plans...