Comparing iOS vs macOS animation

CABasicAnimation.swift

func animateView() {
  CATransaction.begin()
  
  CATransaction.setCompletionBlock { [unowned self] in
      self.removeFromSuperview()
  }
  
  let rotationAtStart = view.layer?.valueForKeyPath("transform.rotation.x") as? NSNumber
  let rotate = CABasicAnimation(keyPath: "transform.rotation.x")
  rotate.duration = 0.3
  rotate.fromValue = rotationAtStart
  rotate.toValue = NSNumber(float: 0)
  layer?.addAnimation(rotate, forKey: "transform.rotation.x")
  
  CATransaction.commit()
}

UIView.swift

UIView.animateWithDuration(0.25,
    delay: 0,
    usingSpringWithDamping: 1,
    initialSpringVelocity: 0,
    options: .CurveEaseIn,
    animations: {
        let radians = CGFloat(M_PI) * 0 / 180 // angle was set to -45 degrees
        var transform = CATransform3DIdentity
        transform.m34 = -1.0 / 500.0
        transform = CATransform3DRotate(transform, radians, 1, 0, 0)
        layer?.transform = transform
    }, completion: { [weak self] finished in
        self.removeFromSuperview()
})