Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and content measurement, audience insights and product development. List of Partners (vendors)

Still, for shows, if you have an iPhone you needed to tap "download" on every single episode you wanted to watch, which could get annoying and confusing. Android phones did this much better, and now,

Netflix users on iOS no longer need to download episodes of their favorite shows one by one. The streamer just introduced a way to download an entire season of a TV show with one click on iPhones and iPads.