Apple agreed to pay $US95 million in cash to settle a proposed class action lawsuit claiming that its voice-activated Siri assistant violated users’ privacy.

A preliminary settlement was filed on Tuesday night in the Oakland, California federal court, and requires approval by US District Judge Jeffrey White.

Mobile device owners complained that Apple routinely recorded their private conversations after they activated Siri unintentionally, and disclosed these conversations to third parties such as advertisers.

Voice assistants typically react when people use “hot words” such as “Hey, Siri.”

Two plaintiffs said their mentions of Air Jordan sneakers and Olive Garden restaurants triggered ads for those products. Another said he got ads for a brand name surgical treatment after discussing it, he thought privately, with his doctor.

The class period runs from September 17, 2014 to December 31, 2024. It began when Siri incorporated the “Hey, Siri” feature that allegedly led to the unauthorised recordings.

Class members, estimated in the tens of millions, may receive up to $US20 per Siri-enabled device, such as iPhones and Apple Watches.

Apple denied wrongdoing in agreeing to settle.

The $US95 million settlement is about nine hours of profit for Apple, whose net income was $US93.74 billion in its latest fiscal year.

A similar lawsuit on behalf of users of Google’s Voice Assistant is pending in the San Jose, California federal court, in the same district as the Oakland court.