The DOU Diário Oficial da União app is designed for Android users to easily access the Diário Oficial da União (Official Gazette of the Union). This publication has been disseminating official information from the Federal Government since 1862, including regulatory acts, personnel matters, contracts, and notices relevant to the public administration. The app streamlines the reading experience, making it simpler for users to stay informed about government activities and announcements.

Key features of the app include the ability to favorite articles for quick reference, a personalized reading space that filters daily editions based on user preferences, and notifications for new editions, including extras. Users can also share articles on social media, enhancing the app's functionality as a communication tool. Overall, the DOU app serves as a vital resource for anyone interested in the latest official government updates.