User expectations of mobile app performance are extremely high, and even minor issues can lead to users uninstalling the app or stopping its use. To succeed in this competitive environment, developers must deliver a good-to-delightful mobile app experience, track the right metrics, adopt scalable processes, and proactively manage performance. This requires understanding the nuances of the mobile medium, adapting to challenges such as high fragmentation, device orientation, and limited information, and using tools like Instabug to gain observability over app performance. By doing so, developers can boost users' engagement, trust, and loyalty, ultimately reflecting positively on their bottom line.