Sigma Fitness

Sigma Fitness is your intelligent fitness companion — track workouts, meals, supplements, sleep, and recovery all in one place. Personalized targets adapt to your body and goals. SMART WORKOUT TRACKING Log strength and cardio sessions with a built-in timer and set tracker. Workouts recorded on your smartwatch are automatically detected and logged via Health Connect — no manual entry needed. MEAL CHECK-OFF Simple daily meal tracking — check off breakfast, lunch, dinner, and snacks. Stay on track with your calorie and protein targets without complicated macro counting. SLEEP & RECOVERY Monitor sleep hours, resting heart rate, and HRV through Health Connect. See how your recovery trends over time and get reminders to wind down at night. PERSONALIZED TARGETS Calorie and protein targets are calculated from your height, weight, age, biological sex, activity level, and fitness goal using the Mifflin-St Jeor equation. Choose from Lose Fat, Build Muscle, Recompose, or Perform. SUPPLEMENT MANAGER Add your supplements with dosage and per-day scheduling. Get daily reminders only on the days you need them, with each supplement listed by name. WEEKLY TRAINING SCHEDULE Plan your week with tap-to-cycle day assignments — Strength, Cardio, or Rest. Workout reminders fire only on training days. INDIVIDUAL NOTIFICATIONS Five notification types — workout reminder, dinner nudge, sleep reminder, protein alert, and supplement reminder — each with its own on/off toggle and custom time. PROGRESS CHARTS Track weight, sleep, and recovery trends over time with clean, visual charts. PRIVACY FIRST No servers. No analytics. No third-party SDKs tracking you. Your data stays on your device. Health Connect data is read-only and never leaves your phone.