Managed the functions and user experiences of the application. After the major update in since 2019, the rating has increased from average of 3.2 to 4.5 on Google Play. Key facts: • The official application of Rakuten Credit Card in Taiwan • Doubled the user base after a project to launch a major update of the App • Required continuous cooperation with Japan headquarters and local teams • Provided cardholders information about their transaction details and Rakuten credit card's marketing campaigns both in Taiwan and in Japan