Tier-1 3G European mobile provider serving more than 8 million subscribers, Tier-2 3G North American mobile provider serving roughly 150,000 subscribers. Their challenge is to provide real-time mobile data usage updates to subscribers directly on their mobile devices. They chose Sandvine to overcome this challenge. Sandvine's Quota Manager Measures and reports subscriber usage in real-time. The usage app delivers on-screen updates to the mobile devices in real-time, and provides subscribers with complete visibility into roaming usage, postpaid and even prepaid mobile data usage. The results of implementing Sandvine were improved quality of experience, peace of mind through mobile-data usage, visibility into the impact of data choices. Operator's benefits increased customer satisfaction, competitive differentiation, fewer calls into customer service department and reduced churn.