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Private cycle tracking, circadian rhythm sync, and biomarker insights.
Calyx is an offline-first, privacy-focused menstrual cycle and circadian rhythm companion designed to help you understand your body and optimize your daily energy. CIRCADIAN & CYCLE SYNCHRONIZATION Track where you are across the four natural phases of your cycle: • Menstrual Phase: Rest, cellular renewal, and metabolic recovery • Follicular Phase: Rising estrogen, vitality, creativity, and stamina • Ovulatory Peak: Maximum energy, verbal communication, and confidence • Luteal Phase: Progesterone focus, steady endurance, and mindful nutrition DAILY BIOMARKER LOGGING Record essential health signals in seconds: • Flow volume and cycle dates • Basal Body Temperature (BBT) and thermal shift tracking • Heart Rate Variability (HRV) and nervous system recovery • Sleep duration, rest quality, and energy fluctuations • Mood states, symptom patterns, and physical sensations PERSONALIZED HORMONAL GUIDANCE Access tailored wellness protocols tailored to your current phase: • Athletic Training: Match cardio strain and strength workouts to hormonal shifts • Phase Nutrition: Nutrient-dense foods supporting metabolic balance • Sleep Optimization: Circadian habits to deepen restorative rest • Daily Vitality Tips: Evidence-informed lifestyle recommendations SYMPTOM DETECTIVE Identify cross-cycle trends and potential symptom triggers. Analyze multi-variable correlations between sleep deficiency, basal temperature spikes, and discomfort patterns to uncover actionable lifestyle changes. CLINICAL REPORT & DOCTOR EXPORT Prepare for your next OB-GYN, endocrinologist, or fertility specialist visit: • Generate comprehensive A4 medical-grade PDF summaries • Review biphasic temperature shifts and cycle regularity metrics • Complete physician summary transcripts ready for clinical review HAVEN SECURITY VAULT Your reproductive privacy is uncompromising: • Local-Only Storage: All health data remains strictly on your device • Zero Cloud Tracking: No central servers, data brokers, or advertising trackers • Biometric & PIN Protection: Secure your sensitive records with device security • Decoy Vault Protocol: An optional secondary PIN unlocks an authentic local weather dashboard for discrete privacy under duress • Instant Local Wipe: Erase all data permanently at any time WELLNESS DISCLAIMER Calyx is designed for personal health awareness, wellness tracking, and educational purposes. It is not intended as medical advice, diagnostic tool, treatment, or contraceptive method. Consult a qualified medical practitioner for healthcare decisions.
past month, based on 1 day
Downloads
Low confidence1
From install count ÷ months since release
In-app revenue
$0
No in-app purchases
Ads
$0
No ads
Total
$0
In-app + ads
Google Play only. Downloads from daily Top free ranks (or the store's install count); in-app revenue from Top grossing ranks, calibrated on AppTweak's US estimates, or else from downloads; ads from public ad benchmarks. Not reported figures.