How do you reduce memory usage in iOS game development?

Problem Faced:
Games consume high memory, leading to app crashes, performance issues, and low FPS.

Solution:
Use Texture Compression (.pvrtc) to reduce memory footprint.
Release unused nodes with removeFromParent() and texture = nil.
Avoid memory leaks by using [weak self] in closures.
Enable Metal API Validation to detect GPU memory issues.
Use SpriteKit’s SKView's ignoresSiblingOrder = true to improve rendering efficiency.

swift

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    scene?.removeAllChildren()
}

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