iPhone and iPad Users Seeing 'iTunes Store is Unable to Process Purchases' Error When Opening Apps
"The iTunes Store is unable to process purchases at this time. Please try again later."
If you are receiving this error when opening third-party apps on an iPhone or iPad today, you are not alone. We've been alerted to the issue by several MacRumors readers, and there are many more complaints flowing in on Twitter.
The cause of the issue is not yet known. Apple's system status page does not currently reflect any issues with the iTunes Store or App Store, but the page is often delayed. We'll update this story as new information becomes available.