Espresso Android App

Espresso is an open-source Android application for tracking packages and express deliveries through a Material Design interface. It supports shipment information from more than 640 delivery companies worldwide. Users can register tracking numbers manually or scan shipping labels with the built-in barcode reader. The application can automatically identify a package's delivery company. It displays shipment details, including the latest reported location and delivery updates. Its design includes package searching, home screen widgets, and day and night themes. The Android project uses MVP architecture with RxJava2, Retrofit2, Realm, and ZXing. It supports Android 5.0 and later, although the repository is archived and some advertised features were unfinished.