The QST iOS app was recently updated, but the ARRL has been notified by the app vendor that a serious defect has been discovered that may cause the app to stop functioning.
ARRL is in discussions with the vendor to alleviate the problem. Until a solution has been found, however, members are urged to avoid updating their QST iOS apps.
This issue does not impact QST Android app users.
American Radio Relay League | Ham Radio Association and Resources