The Oomagari Fireworks official app enhances the experience of the Oomagari Fireworks Festival held in Daisen City, Akita Prefecture. It caters to attendees and fans nationwide, providing essential features such as a program schedule, venue seating chart, light exchange feature, notification alerts, a countdown to the festival, and visitor surveys.

One of the standout features is the light exchange function, which allows users to turn their smartphone screens into lights during the event, fostering a sense of unity among the audience. With over a century of history since its inception in 1910, the Oomagari Fireworks Festival showcases the artistry and technical skill of top pyrotechnicians from across the country, making it one of Japan's premier fireworks displays.