The US Department of Justice and 16 state and district attorneys general accused Apple of operating an illegal monopoly in the smartphone market in a new antitrust lawsuit. The DOJ and states are accusing Apple of driving up prices for consumers and developers at the expense of making users more reliant on its iPhones.
The Android OS is a competitor to iOS. Yes, Android is produced by several different manufacturers.
It’s not a competitor in the sense of a being a company that can monopolise, which is the context of the discsussion