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.
Clever - syncing between education applications for K-12 schools
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.
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
PenPal World - Connect with people all over the world
Claroline - Claroline is a collaborative eLearning and eWorking platform.