From KKBOX iOS 7.12.30 we will no longer be supporting iOS versions 11 or older. Devices running iOS 12 and later are not affected.

You can still update to the latest KKBOX iOS version, compatible with your device.
Should you encounter any problems installing older versions of KKBOX, please contact Apple Support for assistance.

NOTE: iOS 12 is available for iPhone 6 and later.
To enjoy the latest features and functions, we highly recommend updating to the latest iOS version supported.