It's a scam. You find out their trial shoves you into an annual subscription and so you cancel it. But hey, turns out the cancellation process is misleading, and in the course of a year, you realize you're $500 poorer. You go back to find out why the hell its still subscribed and turns out the cancel button means "Cancel your request to cancel." While the only way to actually unsubscribe is to go through help channels. It's a purposefully misleading design and its probably scammed millions from its users, who are probably high school students looking to find images for a presentation lawfully. Only to find out half their savings are gone a few months later (Because it charges you $50 a month quietly.)