Once images are captured, the choice of stacking algorithm determines the final "extra quality" [5.6, 5.9]:
Provides a large screen display with tools like gridlines, focus peaking, and live view zooming to confirm sharpness.
To give you the best information, are you primarily looking for: the automated focus bracketing? Compatible camera models (specifically Nikon/Canon/Sony)? Alternatives to avoid cracked software issues ?