The Learn Apollo iOS track is a tutorial series designed to help developers build a fully-fledged Pokédex application that demonstrates major functionalities of interacting with a GraphQL backend using an Apollo client, specifically for native iOS apps using Swift. The Apollo iOS Client offers two key features: type generation based on GraphQL queries and mutations, providing compile-time safety and flexibility in data requirements, and normalized caching and automatic UI updates, allowing for efficient data fetching and reactive updates. Graphcool believes that GraphQL is the API design paradigm of the future, offering a more efficient and flexible way to interface with backends, especially in native mobile development spaces. By integrating GraphQL into their applications, iOS developers can take advantage of its features and benefits, such as caching, subscriptions, optimistic UI, pagination, and server-side rendering, without implementing them themselves.