That's the assessment of Sir Michael Moritz, a billionaire venture capitalist, who knew the pair.
Moritz told The Mirror that even though the pair had different personality traits, a pursuit of perfection was what drove both men to achieve greatness.
"Well they both occupy very different fields and are half a generation apart but in their own ways they are perfectionists," Moritz explained.
"For Steve a product was never good and for Alex a football team could always be improved.
"Sir Alex would say there were probably only a few times were the team played so well you could set the game to music.
"They were very different personalities though.
"Steve Jobs was a lonely haunted man and Sir Alex by contrast is a gregarious happy human being so they are different."