Noggin subscriptions purchased through Roku Premium Channels cannot be used to access the Noggin app on iOS, Android, and supported Apple TV devices.
A Noggin app subscription is unrelated to a Noggin Roku Premium channel subscription. It can only be used to access the Noggin app on Roku, Apple TVs, or mobile devices.
However, you can access Noggin on a mobile iOS device by using the Roku Channel mobile app or through therokuchannel.com. Start by downloading the Roku app on a compatible iOS device. Before you can start watching you’ll have to register the app with the Roku account associated with your Noggin subscription. Purchasing a Noggin subscription through Roku Premium subscriptions is unrelated to a Noggin subscription purchased through the Noggin app.