Prex is a financial service provider that offers a prepaid Mastercard and a mobile app for free. The app allows users to manage their account, make purchases online or in-store, withdraw cash from ATMs, and transfer money to other accounts. Prex also offers a real-time currency exchange service with a preferential rate, as well as instant digital loans subject to credit approval. Users can also receive money from their international Payoneer account directly to their Prex account. The app also allows users to pay for subscriptions such as Netflix, YouTube, and Google, and offers a loyalty program called Rueda de Premiox.

Prex's prepaid Mastercard is accepted at any store that accepts Mastercard, both online and in-store. The card can also be used to withdraw cash from any RedLink or Banelco ATM in Argentina, or from any ATM abroad. Prex offers a real-time currency exchange service with a preferential rate, which allows users to exchange their money at the current market rate. The app also offers instant digital loans, subject to credit approval, which can be used to cover unexpected expenses or emergencies.

Prex's mobile app allows users to manage their account, transfer money to other accounts, and pay for subscriptions such as Netflix, YouTube, and Google. The app also offers a loyalty program called Rueda de Premiox, which allows users to spin a wheel and win prizes. Users can also freeze and unfreeze their account at any time for added security. Prex's account is free and has no maintenance costs, making it an affordable option for those looking for a prepaid Mastercard and a mobile app to manage their finances.