A class action lawsuit has been filed against the American corporation Apple for restricting peer-to-peer payments in cryptocurrencies. The plaintiffs claim that the company’s policies violate antitrust laws.

The complaint, filed in the U.S. District Court for the Northern District of California, states that Apple severely restricts customers from using cryptocurrencies as an alternative payment method. According to the plaintiffs, Apple users regularly face increased fees from Apple on payment services, with no viable alternatives.

“iPhone is the ideal platform for mobile peer-to-peer payments. Decentralized payments will allow iPhone users to send money to each other without intermediaries—with fees much lower than those charged by Venmo, Cash App, and Apple for transferring money to bank accounts and credit cards. Despite its obvious usefulness, there is no way to make decentralized payments on the iPhone. This is due to the fact that Apple controls every application installed through the App Store,” the class action lawsuit states.

The plaintiffs allege that Apple entered into anti-competitive agreements with peer-to-peer payment platforms CashApp and Venmo, operated by Block and PayPal, respectively. These agreements limit price competition throughout the market by prohibiting the use of cryptocurrencies in existing or new iOS peer-to-peer payment applications. Interestingly, the plaintiffs did not file a lawsuit against PayPal and Block.

Apple is also accused of banning cryptocurrency-related apps from its App Store. The Zeus Bitcoin wallet was mentioned as an example. In June, the mobile application of the decentralized social network Damus was also under threat of being removed from the App Store if it retained the function of receiving tips in Bitcoin.