Over the last years, the Central Bank of the Argentine Republic has launched new bills. Differences in design, both in terms of content and security, caused the need to communicate the new features to citizens in general.At Flux IT, we designed and developed a customized mobile application for the institution, based on iOS and ARKit, with a special focus on user experience. The app makes it possible to identify authenticity of bills through a mobile camera scan and to give information in augmented reality.