Join our Waitlist for Expert Advice!

Mark Zuckerberg Slams Apple's CEO Over Comments About Customers Facebook's co-founder has come out swinging against a letter written by Tim Cook criticizing ad-based businesses.

By Geoff Weiss

Opinions expressed by Entrepreneur contributors are their own.

While Facebook and Apple might not look like direct competitors on the surface, that's not stopping Mark Zuckerberg and Tim Cook from engaging in a war of words with regard to their respective companies' varying business models.

In a new Time magazine profile, an irritated Zuckerberg is slamming Cook for a letter he wrote regarding Apple's evolving privacy policies last September. "A few years ago," wrote Cook at the time, "users of Internet services began to realize that when an online service is free, you're not the customer. You're the product."

While the jab was probably directed at Google, whom Cook has previously called Apple's chief adversary, Zuckerberg came out swinging.

Related: 'I Am Not a Cool Person': Our 5 Favorite Takeaways From Mark Zuckerberg's First Public Q&A

"A frustration I have is that a lot of people increasingly seem to equate an advertising business model with somehow being out of alignment with your customers," he told Time. "I think it's the most ridiculous concept. What, you think because you're paying Apple that you're somehow in alignment with them? If you were in alignment with them, then they'd make their products a lot cheaper!"

Earlier this year, Cook told Charlie Rose that he sees Facebook as a partner rather than a competitor, being that Apple has no foreseeable plans to enter social networking, and that the service is baked into iOS.

Nevertheless, this latest skirmish illustrates that, on a quest for global domination, the fiercely competitive spirit pervading two of Silicon Valley's most successful companies can even turn allies into enemies.

Geoff Weiss

Former Staff Writer

Geoff Weiss is a former staff writer at Entrepreneur.com.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Business News

Google's CEO Says AI Is Now Responsible for 25% of 'All New Code' Created at the Company

Google CEO Sundar Pichai said engineers are moving faster because of AI.

Business News

A Billionaire Founder Admits He Had 'Horrible Habits' — Then He Started a Morning Routine That 'Transformed' His Life

Kind Snacks founder Daniel Lubetzky used to go to sleep at 2 a.m. and skip his morning workout.

Business News

Read the Memo Dropbox's CEO Wrote to Staff Announcing Layoffs, Cutting 20% of Workforce

Dropbox CEO Drew Houston announced the company was laying off more than 500 employees in a blog post on Wednesday.

Business News

You Have One Month Left to Buy a House, According to Barbara Corcoran. Here's Why.

"If you are planning on waiting a year and seeing where interest rates go, you are out of your mind," Corcoran said.

Starting a Business

Which Business Model Is Right for You? Here's What You Need to Know Before Choosing One.

Choosing the right business model is pivotal in shaping your entrepreneurial journey. Explore the benefits and challenges of various models — from franchising to lean startups — to find the one that aligns best with your vision and market needs.