FIEND.fm - "Hot or Not" for music discovery: 2 hrs of tracks in 2 mins
LoveCycles - LoveCycles is an easy and fun to use period tracker (menstrual cycle calendar).
Pacemaker - Create and share mixtapes with friends
Period Tracker - Period Tracker, the easiest way to track your periods!
Boil the Frog - Create a seamless playlist between any two artists
Periodic Calendar - What is Periodic Calendar?