The Iowa caucuses app, intended to streamline the voting process during the 2020 Democratic caucuses, faced significant usability issues, leading to widespread concern and doubt about its effectiveness. Despite the app's potential to manage high data volumes and enhance voting transparency, challenges such as login difficulties, app resets, and confusion over security codes highlighted the problems of deploying technology without adequate testing and support. The situation underscored the importance of best practices in app development, including scalability, observability, extensive testing, and real-time monitoring, especially for high-stakes events. With nearly 1,700 precinct chairs using the app simultaneously, the lack of proper tech support and preparation exacerbated the situation, leading to calls for better planning and smaller-scale testing before such technology is used in major elections.