Best Free Language Learning for iPad
(28.0 MB), a popular and high quality app for you to learn another language from the language you're familiar with, either it's Spanish, French, German, Portuguese, Italian, or English. It's fun, addictive and allows you to track your progress with shiny achievements. No fees, no ads and no gimmicks.
Best Free Talks and Lectures for iPad
(12.0 MB), talks at TED events usually last around 30 minutes and cover everything from technology to art to medicine to music. Almost all of the talks are online for you to watch at your leisure or they can even be downloaded with the app for offline viewing.
Best Free Articles and Answers for iPad
(33.6 MB), access more than 40,000 articles, videos, quizzes and podcasts with clear explanations of how things work. Love a topic? Then dig deeper by accessing Related Stuff to uncover new content, or type some keywords to search the entire archive right from the app.
Best Free Science Knowledge Network for iPad
(11.0 MB), pan through hundreds of science and engineering images and videos published by the National Science Foundation in the unique 360 view, and keep abreast of breaking stories in scientific discovery. You can also search the content by tags or via keyboard with a two-finger tap, mark favorite items and share them easily with your friends.
Best Free Astronomy Software for iPad
(8.7 MB), view the sky above you in 2D and 3D views, identify the stars, planets and constellations with helpful labels, find out when the planets will be visible, and enjoy the interactive rotating globe of planets with this impressive astronomy app.
Best Free Quiz Tool for iPad
(11.2 MB), make full use of the iPad2 Smart Cover for studying—after choosing a notebook, close the cover and peek under it to see a clue, then lift it more to see the answer and give a mark, repeat this until you complete the quiz and check your total score. Try also create your own study notebooks with Evernote.
Best Free Story Book for iPad
(170 MB), hear the story read aloud, record your own narration and enjoy a fully interactive reading experience packed with simple games, movie clips, coloring pages and sing-along tunes. A superb story book app and definitely a good education tool for kids. 
Best Free Workout Tracker for iPad
(4.6 MB), track your running and bike workouts with GPS and build a better body with this app, complete with a calorie counter to calculate average pace and calories burnt for you. It's also a social network for you to stay connected with your workout enthusiasts. Some advanced features only available in the paid version.
Best Free Medical Reference for iPad
(4.9 MB), a comprehensive medical app allows you to access more than 4,000 clinical reference articles, over 10,000 drugs, conditions, procedures and treatment guides, with interaction checker, daily medical news and alerts. You can also download the clinical reference for offline access.
(5.2 MB), select a part of the body that's troubling you, choose your symptoms and learn about potential conditions, search for drugs and treatments, find out their uses, side effects and warnings, and access first aid information from the extensive database. A must have tool for medical reference.
Best Free Menstral Cycle Tracker for iPad
(15.6 MB), a good app for ladies to track their menstrual cycles up to a year in advance, complete with a calendar showing expected periods, fertile days, ovulation and weight, as well as notes with emoticons and unique icons symbolizing your symptoms. Ads supported in the free version.
