This document summarizes a presentation about crashes in Android apps. It shows statistics that 11% of app reviews cite crashes as an issue. The presentation introduces common types of crashes like null pointer exceptions, out of memory errors, and index out of bounds. It discusses architecture-related crashes and concludes that crashes can lead to bad reviews, lack of professionalism, and loss of revenue, so it is important for developers to use tools and common sense to test apps and prioritize user experience.