To use this App you need to be a Vale Feira Topcard customer previously registered, that is, you need to have a Topcard card or be a shopkeeper who accepts Vale Feira Topcard cards.

System for making sales, canceling sales, balance inquiries, control of loyalty points, CPF inquiries and payments for merchants accredited with the Vale Feira Topcard card.
System for checking balance, statement of purchases, card blocking and checking establishments where to buy, intended for users of the Vale Feira Topcard card.