Porteño Spanish is an iPhone application that delves into the unique language spoken in Buenos Aires, Argentina. Known as Lunfardo, this dialect is a blend of Italian immigration, Brazilian Portuguese influences, and local underworld elements. Even for fluent Spanish speakers, understanding Porteños can be a challenge, making this app an essential tool for language comprehension.

The app offers a dictionary of Porteño Lunfardo phrases, a study quiz to enhance learning, and the option to share phrases with friends or suggest additional content. Whether you're a language enthusiast or planning a trip to Buenos Aires, Porteño Spanish provides valuable insights into the linguistic nuances of the region.