Researchers with the Tech Transparency Project found all sorts of apps that let users create fake non-consensual nudes of real people

The mobile app emperors have no clothes. Apple and Google have made millions of dollars from AI apps that let users undress people even as both companies claim to ban such software from their stores, according to a new study.

Researchers with the nonprofit Tech Transparency Project found 55 such apps in Google’s Play store and 47 in Apple’s App Store. All told, those apps were downloaded 705 million times and have generated $117 million in revenue, they say. The group published its research on Tuesday in the wake of global outrage over users employed Elon Musk’s AI bot, Grok, to strip people of their clothing. Regulators in the UK have weighed banning the app.

“Grok is really the tip of the iceberg,” Katie Paul, director of Tech Transparency Project, told The Register. “The posts were happening on X so the world could see them. But even ...