Yes, you can use Seven across different devices as long as you have created a Seven Profile.
Simply log into your Seven account on your new device and all your data should sync. Although, please note that, our subscriptions are controlled through whichever platform you originally subscribed with. This means for your iOS devices, your subscription will be managed through the App Store & iTunes.
So, to restore a purchase on a new device, once you have logged onto your Profile, please go to ‘7 Club’ in Seven Settings and scroll to the bottom of the next screen. There should be a ‘Restore Purchases’ button, press it and wait for it to finish. This should restore your subscription purchase on that device.
If you need more information on how to transfer your subscription to different devices, please feel free to contact support.