HowStuffWorks is the official iPad app from the folks at HowStuffWorks.com. This app is full of fascinating articles, video, audio, and quizzes that’ll keep you engaged for hours at end. You can access over 40,000 articles as well as over 12,000 exclusive videos. The app is AirPlay enabled so that you can push these videos and enjoy them on your AppleTV. You can also listen to 2000+ audio features as you browse the app. The wealth of content is quite unrivaled and the quality is equally impressive, with highly credible and simple explanations for almost anything.
If you enjoy browsing Wikipedia and jumping from link to link, this is a whole new resource for you to explore in a similar manner. The app is particularly well-suited for browsing and scanning across multiple topics, with intelligent related links and easy bookmarking. The content is original and well-written. The interface takes this great content and adds a layer of serendipity and interactivity. It has a bunch of little features that will delight some people while staying out of the way in case they’re not your cup of tea. These include quizzes, quotes, and ability to earn badges based on your performance in the quizzes. Overall, this is a spectacular resource that rivals Wikipedia in engaging and thoughtful content, and comes with an awesome interface to boot.
Source http://exelentipadapps.com/ipad-apps/education-ipad-apps/howstuffworks-best-ipad-app/