UPay by UPayments.com is a free Android application that offers a simple and fast online payment system for businesses. With this app, businesses can easily bill their clients online and share invoices through various apps such as SMS, Email, WhatsApp, Viber, Twitter, and more.

The app also allows users to track their bills and receive notifications when a client makes a payment, giving them full control over their finances. Additionally, businesses can create recurring invoices to allow their clients to pay in installments every period they specify, making it easier for clients to pay their bills.

Overall, UPay by UPayments.com is an excellent choice for businesses looking for a reliable and efficient online payment system that simplifies the billing process and helps them stay on top of their finances.