Soundbrenner Pulse - A vibrating, wearable metronome for musicians
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.
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
Babble - A more personalized social network
AddressToGPS - AddressToGPS is an open-source tool to search for an address, location, or area using the Google...
LanguageBeast.com - Study English synonyms and antonyms to enrich your vocabulary