Bought subscription from AppStore for my IoS devices for a year. I let it expire per 30.06.2015 by turning auto-renewal off. That worked, it shows EXPIRED in all IOS devices.
Purchased multi-platform license from F-Secure site. Activation code works well with my MacBook, with IOS devices I don't even see option to use activation code - anywhere on app.
Your support pages says
- Tap Subscription.
- Tap on Did you already buy a multi-platform subscription?
- In the Activate your account field, type in the subscription code and tap Activate to activate the subscription.
I don't even see that option available on Subscription screen, nor on iPhone 6s or iPad Air. Just states EXPIRED. IOS version the latest 8.4.