Apple has filed an application with the Supreme Court asking it to stay the Ninth Circuit’s mandate, which would send the case back to the District Court to determine what it can charge for purchases made outside the App Store. Here are the details. A bit of context Last year, the U.S. District Court for the Northern District of California found Apple in contempt of a 2021 injunction related to off-App Store purchases. The injunction prohibited Apple from blocking developers from including buttons or links to alternative purchasing mechanisms, and from communicating with users about those options using contact information obtained in-app. However, the injunction didn’t specify whether Apple could charge a commission on those external purchases. From the ruling: Apple Inc.…