PSD is an Android application launched by Partido Social Democrata that aims to keep you updated about the party's latest news, candidates, agenda and more. The app also provides access to a reserved area for members to pay their dues and manage their accounts.

The app's main purpose is to increase the transparency of the party's relationship with its members, regardless of their location. With PSD, party members can keep track of the amount of dues paid, pending payments, and even make payments through various methods such as multibanco reference, mbway, credit or direct debit card.

The app's interface is user-friendly and easy to navigate, with a simple layout that allows users to quickly find the information they need. Overall, PSD is a great app for those who want to stay informed about the Partido Social Democrata and manage their membership account with ease.