One by Allegro is an Android application designed to streamline the shipment tracking experience for users. It consolidates all shipment details in one place, allowing easy access to the status and location of parcels. Users can monitor, modify, or redirect current shipments while also having access to an archive of past orders, making it a convenient tool for managing deliveries. The app also helps users find nearby delivery points and boxes, ensuring users can quickly locate their items.

In addition to its core features, One by Allegro offers real-time push notifications for shipment status updates and flexible delivery options, including changing delivery dates and redirecting shipments. The app promises a hassle-free registration process using just a phone number, and it facilitates convenient payment for box deliveries. With features like viewing PINs for out-of-home shipments and the ability to reject unwanted parcels, One by Allegro aims to enhance the user experience with continuous updates and new functionalities.