The U.S. Presidents is an iPhone app by Ratha Sou that offers a comprehensive guide to the history of the United States presidents. From George Washington to Joe Biden, this app provides a wealth of information about each president's life and career. The app includes brief information and more detailed biographies, as well as deeper detail Wikipedia online information. It also features each president's best quotes and fun facts.

In addition to biographical information, the app provides details such as each president's born date, died date, born name, in-office year, vice president name, jobs before and after presidency. It also allows you to view each president's portrait in fullscreen. The app even includes a direct search for images and view YouTube videos. The layout design is user-friendly and visually appealing, making it easy to navigate and find the information you need.