Cash apps, particularly in the world of business-to-business (B2B) payments, are at the forefront of this transformation, reshaping financial processes and improving efficiency. In this article, we'll dive into the evolving landscape of cash apps in the digital age, with a close look at three notable examples. Opay: Pioneering B2B Payments Opay is a remarkable illustration of a cash app that has been finely tuned to cater to the distinct demands of B2B transactions, establishing itself as an indispensable tool for contemporary businesses.