PenPal World - Connect with people all over the world
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
Unbordered - Unbordered app comes up with features to help you in finding the perfect language practice and exchange partners so you can practice foreign languages right through your mobile phone.
Palaround - Meet people you should be friends with.
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