FREE ON ALL PLATFORMS

Please Note: Product Numbers YO-FA-01633-00, YO-FA-01634-00, and YO-FA-01635-00 will use the YO 2.0 (WiFi Apps).  All other Product Numbers will use the YO 1.0 Apps.

Easy to Use – Check your swimmers by following YO’s step by step instructions, watch the animations and take the Sperm Trivia Challenge. The App is packed with free fertility improvement resources and recommendations to start your fertility exploration.