Our solution was ‘Ace Pace’ – a fun, engaging and social mobile app-based experience where players challenge each other to see who can deliver the best serve. Leveraging the motion sensors and gyroscope in smartphones, ‘Ace Pace’ can track, measure and award points to each player based on the accuracy of their ball toss and the speed and arc of their serve. Whilst on the face of it, it’s a simple concept, there’s a high degree of complexity built into the app – both in terms of the mathematics for calculating serve speed and accuracy but also the game mechanics themselves, where players face off in a seamlessly orchestrated tournament. Speed was of the essence too. The original version was built in a series of agile sprints in just over four weeks - a timeframe that included testing and releasing it to the App Store and Google Play. We felt like we’d played a five setter by the end, but the result was worth it.