Apophis Solitaire is Pyramid Solitaire with extra Waste piles.
This makes the game easier. I would say that it is one of the easiest (or maybe easiest) from the Pyramid variants.
This isn't saying much. There is little skill in these types of Patiences, and your success or otherwise is largely dictated by the pyramid.
Apophis, Eleven Triangle, Par Pyramid (28 Card), Pyramid (28 card), King Tut