<p>This article discusses the emergence of fintech in the UAE and KSA over the recent past with a spotlight on the Buy Now, Pay Later (BNPL) phenomenon that is disrupting credit consumption pattern in the region. Even though BNPL has been on the rise because of its flexibility and lack of hidden costs, its future viability has problems associated with revenue generation, consumers who are overindebted and regulatory issues. Using ideas from Clayton Christensen’s Disruptive Innovation as well as the triple bottom line (TBL), this article highlights the shift from the current models based on growth to platforms for scale. To get sustainable growth, BNPL providers have to incorporate advanced analytics and follow sustainability policies and regulatory norms. In the conclusion of this paper, emphasis is made that for the growth and sustainable business model, fintech needs to evolve into full financial ecosystems.</p>