Metal is Apple's low-level GPU API for maximum performance. SpriteKit is the high-level 2D game framework built on top of Metal.
| Feature | Metal | SpriteKit |
|---|---|---|
| Abstraction level | Low (GPU direct) | High (scene graph) |
| Learning curve | Steep | Gentle |
| Performance ceiling | Maximum | Good for 2D |
| 3D support | Full | 2D only |
| Code volume | High | Low |
| Cross-platform | Apple only | Apple only |
SpriteKit for 2D casual games and prototypes. Metal for high-performance 3D, custom shaders, AR scenes, and engines that push the GPU.
No — Apple still maintains it. For 2D games it's a reasonable choice, though many teams pick Unity or Godot for portability.
Only if you're building an engine, working on AR/Vision Pro, or need shader-level control. Most game devs use Unity or Unreal.