Nueva familia de billetes is an Android app developed by Banco de la República. This free app falls under the category of Education & Reference and is designed to educate users about the new family of Colombian banknotes. The app allows users to interact with the banknotes through five different actions: look, touch, lift, turn, and check. By interacting with the banknotes, users can learn about the security features that have been implemented in the new banknotes, which aim to increase public confidence. It is important to note that this app is for educational purposes only and cannot be used as a tool to verify the authenticity of any banknote.