Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Mate Translate - Ultimate translation app for Mac, iOS, Chrome and many more
Crowdin - Localize your product in a seamless way
TransKey – Chat Translator App - TransKey – Chat Translator App is a rich-featured keyboard extension, enabling you to translate your messages inside any social media application like WhatsApp, iMessage, Facebook, Email, Twitter, Instagram, and many others.
Crow Translate - A simple and lightweight translator that allows to translate and speak text using Google, Yandex and Bing.
TRANSKEY – translator keyboard - TRANSKEY – translator keyboard is an application that is designed as a keyboard translator, enabling you to convert your smartphone keyboard in any appropriate language in no time.