YO Home Sperm Test is an FDA cleared over the counter kit designed for testing Motile Sperm Concentration (MSC) and recording sample videos on a smart device in the privacy of home. Using a smartphone, PC or MAC computer the user receives a 97% accurate screening result along with a YO Score to track fertility over time and understand where he ranks against other men who have fathered children. Medical Electronic Systems, the company behind the YO Home Sperm Test, has been producing commercial-grade semen analyzers for over 20 years. Remember, it ALL Started With a Sperm!