THE iOS AND iPadOS versions of the app work almost identically to the one on Mac. However, there are some differences, especially under the hood. In Settings > TV you’ll find a range of options that include a choice of high–quality or data–saving streaming modes — the latter’s good if you’re using mobile data — as well as options to set the default languages and download quality.
On iPhone and iPad,, for example, needs 1.18GB of storage space.