PayKeeper is a payment platform designed to facilitate transactions via credit cards and the Fast Payment System. Users can generate invoices for clients, sending them through messaging apps, SMS, email, or displaying a QR code for instant client payment.

The application serves as a versatile tool, replacing traditional POS terminals in retail stores and with couriers. It seamlessly integrates with various supported cash registers, allowing multiple sellers or couriers to operate under a single online cash register.

Key features include:

• Accepting payments via Fast Payment System QR codes
• Sending payment links through messaging apps, email, and SMS
• Invoicing via email
• Viewing invoices and payments
• Full and partial payment refunds
• Automatic fiscalization of payments and refunds
• Issuing final settlement receipts, cash and non-cash payment receipts