FTC investigation into Apple heats up

The FTC has launched an investigation into Apple's dealings with competing music streaming services in its App Store, according to multiple sources. The investigation is targeting Apple's 30 percent fee charged to subscription services who sign up new users through the App Store. This has been a major point of conflict between Apple and rival music services as The Verge reported back in May.The FTC's inquiries have picked up over the recent weeks, on the heels of its initial investigation into whether Apple pressured labels to kill Spotify's free streaming tier. Sources with direct knowledge of the matter tell The Verge that the FTC has already issued subpoenas to music streaming services as it gathers more information to determine whether Apple's App Store rules are anticompetitive.The sooner they crack open the App Store, the better.