I’m trying to install 360 standard on my mobile devices, but unable to as it keeps picking up the LifeLock version, which expires next week. iPhone & iPad. Got it done on the Mac successfully.
Try uninstalling 360 from your iOS devices, then restart the device. Reinstall 360 from the Apple App Store. During the installation process, look for Redeem a Subscription. Tap that and see if you are presented with options from your Norton Account. If so, choose the new subscription.
If you are not given options above, wait for the old subscription to expire, and then try the reinstall again. It should then pick up the only valid subscription.