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.
Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
LanguageBeast.com - Study English synonyms and antonyms to enrich your vocabulary
OwnTracks - Cross-platform location sharing
Babble - A more personalized social network
Mapple.me - Mapple.me bridges the gap between available time and availability of friends to increase social...