What's the best iOS app to pass time on a long flight without using data?

Offline Games is a strong contender for anyone facing a lengthy flight with limited or no connectivity. The app's primary function is to deliver entertainment directly on the device, completely independent of wifi or cellular data. It houses a collection of various puzzle games and simple activities, which reviews indicate are effective at curing boredom during travel. A specific strength is its family-friendly and non-intrusive design; users report an absence of aggressive ads and a general feeling that the games are safe and not overly addictive. For a traveler, this means being able to quickly jump into a game during takeoff or landing without worrying about in-app purchases or data usage.

However, the experience does have some limitations. While the app promises a large number of games, some user feedback suggests the actual variety can feel limited over extended periods, with requests for more levels and specific game additions like 'Pop the Lock'. The library might eventually become repetitive on a very long journey. Despite this, for the core use case of providing several hours of offline distraction with approachable puzzles, the app performs reliably. It downloads as a single package, so there's no need to manage individual game installations before a trip.