Castor EDC - Castor offers you a user-friendly and fully featured application for electronic data collection.
Houseparty - Brining empathy to online communication.
OpenClinica - OpenClinica is an open source clinical trials software.
Booyah - Video chat with up to 12 friends at the same time.
GNU Health - GNU Health is a Free/Libre project for health practitioners, health institutions and governments.
Slack - A messaging app for teams who see through the Earth!