6Letters Launches “MOJO KING,” an Apple Watch-Based iOS App for Non-Invasive Testosterone Monitoring
Digital healthcare startup 6Letters today announced the official launch of MOJO KING, an iOS application that enables non-invasive monitoring of testosterone-related physiological patterns using Apple Watch data. MOJO KING leverages heart rate variability (HRV)–a standard biometric signal collected by Apple Watch–to analyze changes associated with male hormonal balance. Without requiring blood tests or external sensors, […]