Remind, a communication platform used by over 70% of U.S. public schools, faced the challenge of handling peak user traffic during the back-to-school season, with over 27 million active users in 2017. To ensure seamless communication for teachers, students, and parents during this crucial period, Remind adopted Chaos Engineering tools, specifically utilizing Gremlin's Latency Gremlin, to simulate network delays and test system resilience. These chaos experiments helped Remind identify weaknesses and prepare additional technical resources, maintaining app stability even if Redis slowed down, and ensuring key features remained functional. The insights gained from these tests allowed for collaboration with the design team to enhance user experience, leading to Remind maintaining a top position in the App Store. Chaos Engineering has since become integral to Remind's engineering culture, with automated experiments incorporated into their deployment pipeline to preemptively address potential system failures.