Verlocal iOS App - The app to rediscover your city with local experiences.
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.
Flamyngo - Create a city guide with help of your friends.
LanguageBeast.com - Study English synonyms and antonyms to enrich your vocabulary
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
Babble - A more personalized social network