Railroad Crossing Play is an iPhone application that allows users to experience the joy of interacting with various types of railroad crossings and vehicles. The app offers four types of railroad crossings, three types of vehicles, and the ability for passenger cars to carry letters. Users can enjoy the realistic experience of operating the railroad crossings while showcasing their toy collection.

Moreover, the app provides two modes for users to choose from - one that displays both railroad crossings and control buttons, and another mode that solely focuses on showcasing the railroad crossings. Additionally, users have the option to change settings by pressing and holding the upper left corner of the screen.