BBB National Programs’ Children’s Advertising Review Unit found Unity Technologies did not know its advertising software development kit was collecting persistent identifiers through two child-targeted applications. CARU was concerned Unity had “actual knowledge” its Number Coloring and Cats and Cosplay apps violated the U.S. Children’s Online Privacy Protection Act Rule and CARU’s Guidelines for Online Privacy Protection by collecting information from children under 13. Unity subsequently flagged the apps as child-directed on its platform and is working to delete the data it inadvertently collected.