MOJO KING
Your Apple Watch can now estimate your testosterone. Daily.
MOJO KING launched on March 23, 2026 with 1 votes, #8,013 of 23,380 launches that month.
What it does
Most men check their testosterone once a year — at best. But T levels fluctuate 30–50% throughout the day and are one of the earliest signals of energy, mood, and metabolic health. MOJO KING estimates your testosterone daily using your Apple Watch's PPG sensor and HRV patterns. No blood draw. No clinic visit. 15 seconds on your wrist.
This is the new healthcare as defined by 6Letters.
A key signal behind disease, aging, mental health, and hair loss. Holistic hormone care for energy, mood, and every life stage. Check your current health status in real-time via AI monitoring, eliminating the need for hospital visits and long wait times. Transform subjective symptoms into medical-grade insights, giving you objective, actionable hormone health care. 6Letters, a digital health company specializing in AI-driven hormone insight platforms, today announced the results of a U.S. market validation study demonstrating strong indicators of commercial success for MOJO KING, its AI-powered hormone monitoring app that is already live in the market. 온라인에서 유행하는 '에겐남·테토남'은 남성적 성향을…from 6letters.co.kr
Does a similar job
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Testic - Testosterone TrackerJun 2026 · testic.pro · ▲4Daily testosterone insights for energy & performance
T-Score: Boost TestosteroneApr 2026 · apps.apple.com · ▲1Score the daily habits that actually raise your testosterone

I built a daily sunlight tracker2025 · lumehealth.io · ▲46I kept trying to explain how important outdoor light is and how most people aren’t getting enough. Eventually I figured that showing is more effective than telling. So we built a free app that uses your Apple Watch or iPhone to automatically track your light exposure throughout the day. It tells you if you’re getting enough, shows you how consistent you are, and rewards habits that support hormone balance. It's in beta on TestFlight, let me know what you think!


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