Amidst rising controversies between Apple CEO Tim Cook and Tesla’s Elon Musk, the latter has criticized Apple for charging a 30 percent commission fee for publishing apps on its App Store. The Tesla CEO took to Twitter to slam the Cupertino giant for “overcharging with App Store” and supported Epic Games in the lawsuit between the industry giants.

Apple app store fees are a de facto global tax on the Internet. Epic is right.

Normally, competitive pressure would force Apple to lower fees, but Apple & Android have a duopoly on phones. When interface familiarity is taken into account, it’s basically a monopoly.

— Elon Musk (@elonmusk) July 30, 2021