Frysbe - Frysbe: Make global friends at random and the fling app comes up with features to send messages to strangers from every corner of the world to expand your social circle.
Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
Yochat - Yochat app enables users to get to know about strangers from a large number of countries from around the world by video chatting with them.
LanguageBeast.com - Study English synonyms and antonyms to enrich your vocabulary
Anygram - Anygram app offers features that let you meet new people so you can make new foreign friends practice native languages to learn something new.
Babble - A more personalized social network