Developers including Amazon and Spotify have been able to update their apps to avoid Apple's 15% to 30% commission.

The US Court of Appeals has denied Apple’s request to pause a court order mandating changes to its App Store policies. The company failed to persuade the court to discontinue key parts of a federal judge’s order requiring the iPhone maker to immediately open its lucrative App Store to more competition.

A three-judge appeals panel rejected Apple’s request to pause an April 30 order banning the company from charging a fee on in-app iPhone transactions processed outside its once-exclusive payment system in a two-page decision issued late Thursday.