As described by AppleInsider today (2015 November 12), the Apple App Store is creating problems for users due to expired app certificates.
I unknowingly encountered this yesterday (2015 November 11). While opening Bento, I was prompted to authenticate with the App Store with a message that “this app was purchased on a different computer.”
Today, I’ve received the “this app is broken or damaged” message when trying to open BBEdit, Coda, and Sketchbook Pro.
Although the error messages were different, each of these apps have one thing in common. They are older apps which are no longer available for purchase on the app. Yes, I can “re-download” them from my purchases history… but this does increase my concern about how Apple treats past purchases of apps which are no longer sold or updated by their developers.
An additional annoyance… I’m currently traveling, so re-downloading these apps requires tethering the macbook to a wireless hotspot or phone and consuming a data service which is currently costing $10/GB.
This is not the first time Apple users have experienced problems due to app certificate expirations. Until Apple solves this problem, this issue should raise concerns for anyone needing long term reliability from their software purchases. What happens to users and businesses when the next batch of affected apps include password keepers, electronic healthcare apps, or the app which unlocks your home security system?