Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Pleco - The #1 Chinese dictionary app for iOS and Android
PONS - Germany’s most-trusted foreign-language dictionary. Includes language-learning materials, definitions, examples, pronunciation tips and a vocabulary trainer.
wenlin - Wenlin Software for Learning Chinese
Perfect Dictionary - The most comprehensive offline dictionary on Windows Phone!
Youdao Dictionary - Youdao is a search engine released by Chinese internet leviathan, NetEase in 2007.