Efficient memory management is essential for maintaining speed and stability during mobile app development. Tools such as Android Studio, Xcode, emulators, and debuggers demand substantial resources, making optimization a priority. Begin with strong hardware — at least 16 GB RAM, SSD storage, a multicore processor, and a capable GPU — to ensure smooth performance. Enhance your IDE efficiency by adjusting Gradle JVM settings, disabling unused plugins, and closing inactive projects or tabs. Configure emulators wisely with hardware acceleration, 2–4 GB RAM allocation, and minimal active instances. Beyond IDE optimization, close unnecessary background apps, manage virtual machines carefully, and regularly delete caches and temporary files. Use tools like Task Manager or Activity Monitor to identify and control high-memory processes. Following these best practices enables developers to reduce lag, prevent crashes, and maintain a reliable environment for building high-performance mobile applications.