The Team Avengers project, submitted at the University of Wollongong, South Western Sydney Campus, Liverpool, Australia, presents a detailed analysis of modern cryptocurrency wallets. The project begins with a letter of transmittal and an executive summary, setting the stage for an exploration of cryptocurrency's history, including the evolution of blockchain technology, mining, and the emergence of cryptocurrency wallets. The project delves into the current scenario of cryptocurrency, discussing regulations, market fluctuations, and the growing interest in digital currencies like Bitcoin and Libra. It also explores the advantages and disadvantages of cryptocurrency, such as scalability, cybersecurity issues, and volatility, as well as low operation costs, decentralization, and anonymity. The project includes potential stakeholder analysis and interview findings, which inform a user-centered design approach. The project aims to address the limitations of existing cryptocurrency payment gateways by proposing a user-friendly payment gateway that accepts various cryptocurrencies and facilitates conversions to other currencies. The project concludes with a proposed solution and appendices, providing a comprehensive overview of the topic.