AMSTERDAM, June 24 (Reuters) - Apple's ( AAPL ) App

Store rules breach EU tech rules known as the Digital Markets

Act (DMA) because they prevent app developers from steering

consumers to alternative offers, EU antitrust regulators said on

Monday.

The European Commission, which also acts as the EU antitrust

and technology regulator, said it had sent its preliminary

findings to Apple ( AAPL ) following an investigation launched in March.

The EU executive said it was also opening an investigation

into the iPhone maker over its new contractual requirements for

third-party app developers and app stores.

It singled out Apple's ( AAPL ) three business terms.

"None of these business terms allow developers to freely

steer their customers. For example, developers cannot provide

pricing information within the app or communicate in any other

way with their customers to promote offers available on

alternative distribution channels," the EU watchdog said.