The rise of technology has made it essential for businesses to deliver a flawless user experience to stay relevant. Application performance monitoring (APM) is critical in this fast-paced world to detect and diagnose complex application performance problems, ensuring applications can meet their expected level of service. APM provides real-time data to track an application's performance and the digital experiences of end users, exposing the root cause of issues, giving a unified full-stack view, reducing revenue loss from downtime/degradations, improving resource utilization and right-sizing infrastructure, and enhancing end user experience. With the increasing complexity of technology, APM is becoming indispensable in modern IT strategies, offering various benefits such as simplified issue detection, improved resource allocation, and enhanced customer satisfaction. By utilizing operational dashboards, real user monitoring, synthetic monitoring, serverless monitoring, database monitoring, mobile monitoring, infrastructure monitoring, service maps, and querying telemetry data, organizations can gain a comprehensive understanding of their application's performance. APM solutions are designed to help businesses monitor and manage the performance of their applications, providing features such as comprehensive visibility, real-time monitoring, user-friendly design, customizable dashboards, proactive alerting capabilities, and observability. As technology continues to evolve, it is essential for businesses to adopt APM tools that offer these key features to ensure optimal application performance and customer satisfaction.