This document discusses how digital wallets can facilitate the exchange of various currencies and assets, increasing users' purchasing power globally. It introduces Creel, a service that allows easy integration of currency exchange functionality into applications. A case study showed that when three game companies integrated Creel, 63% of gamers registered with Creel, 47% became active paying customers, and on average gamers played 30% longer, resulting in €1.30 per active Creel user over four weeks.