PayB is a free iPhone app developed by Billing System Corporation, designed to simplify the payment process of bills and taxes. With this app, you can easily pay invoices, tax bills, and other payments using your smartphone. PayB supports over 14,000 companies and organizations nationwide, and you can pay immediately from your financial institution account.

To use PayB, you need to register your bank account details in advance. Once you receive an invoice or tax bill, you can scan the barcode or eL-QR code using the app to complete the payment process. PayB supports payment by bank transfer and credit card (Visa, Mastercard, JCB, AMEX, and Diners Club).

PayB is compatible with various types of bills and taxes, including public utilities, pension, and online shopping. The app is easy to use and free to install, but you may incur data charges when using it. PayB also ensures the security of your data by storing it on dedicated servers and complying with the PCI DSS international security standard.