40 Free and Useful iPad Apps , 40 Free and Useful Android Apps

Source ( 消息來源 ) :
Tom's Hardware 網站
40 Free and Useful iPad Apps
http://www.tomsguide.com/us/pictures-story/291-best-free-ipad-apps-ios-apple-free-apps.html
Merriam-Webster Dictionary
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40 Free and Useful Android Apps
http://www.tomsguide.com/us/pictures-story/288-best-free-apps-android-os.html
Dictionary – Merriam-Webster

其中有免費的英英字典 Merriam-Webster Dictionary