“The biggest iOS release ever.”

SiliconBeat reports Apple has been hit with a class-action lawsuit alleging it doesn’t inform its customers how much storage iOS 8 takes up on their device, and then asks them to buy more space on iCloud.

The case was filed in a San Francisco Bay federal court on Tuesday, claiming iOS 8 can take up to 23.1 percent of storage on the iPhone 5s and 23.1 percent on an iPod. It says Apple isn’t truly representing the storage available on its devices. 

“We feel that there are a substantial number of Apple consumers that have been shortchanged, and we’ll be pursuing the claims vigorously,” said William Anderson, a lawyer at Cuneo Gilbert & Laduca, a Washington, D.C.-based law firm.

Sixty-four percent of Apple devices now run iOS 8, according to Apple’s Developer Center, and the plaintiffs in the case hope to represent “sweeping classes of users who bought Apple gadgets with iOS 8 already installed.”

Samsung faced similar heat, when fans of its Galaxy S4 discovered the 16GB version of the 5-inch smart phone actually only has around 8GB of useful memory. Samsung claimed it took up the storage to bring “more powerful features to our consumers.”

Furthermore, this isn’t Apple’s first time fending off such claims. In 2012, it beat a case in a Canadian court claiming it misled customers on how much storage the iPod truly has.