The Українська гривня app is an interactive tool that helps users learn about the security features of the new series of banknotes from the National Bank of Ukraine. The app provides a simulation of the banknotes' security features, including viewing the banknote against the light, kinematic effects, tactile elements, and magnified images of the features.

In addition, the app includes video overviews of the banknotes and links to materials on the National Bank of Ukraine's website. It is important to note that the information provided about the security features is for informational purposes only and the app is not a tool for determining the authenticity of the banknotes.