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Explore the innovative technologies behind Payzy, a groundbreaking mobile app revolutionizing electronic transactions in Greece. Discover how this Cosmote-developed solution leverages Big Data, Analytics, and AI to provide a comprehensive digital platform for everyday purchases, bill payments, and peer-to-peer transactions. Delve into the impressive tech stack powering Payzy, including a conversational assistant, recommendation system, search engine, and end-to-end analytics solution. Learn about the state-of-the-art, open-source tools that form the backbone of this rapidly evolving ecosystem, which has already onboarded approximately 100,000 users within months of its release. Gain insights into how Payzy continues to grow, adapt, and tackle new challenges in the dynamic world of mobile payment services.