CycleAI vs Flow Fasting Tracker

CycleAI is the free period and cycle tracker built on real hormone science — not guesswork. Track your period, ovulation, and fertile window with predictions that get sharper the more you log. Every day of your cycle is mapped, from the follicular rise to the luteal wind-down, so you always know what your body is doing and why. WHAT MAKES CYCLEAI DIFFERENT • AI Chat, 24/7 — Ask anything about your cycle, symptoms, or fertility and get real, judgment-free answers grounded in your own data. Not a chatbot script — an assistant that actually knows your cycle. • Life Planner — Type any date, past or future, and see exactly how your cycle will shape it. Time job interviews, first dates, and presentations around your best days. • Doctor-Ready Reports — Generate a clear PDF summary of your cycle history, symptoms, and patterns in one tap. Walk into your next appointment prepared, not guessing. • Full Symptom Tracking — Log mood, energy, cramps, sleep, and more. Tap any date on your calendar to see exactly what your body was telling you. • For Partners — Help the people who care about you understand your cycle too, without ever compromising your privacy. PRIVATE. FREE. NO CATCH. CycleAI is free forever — no paywall, no premium tier hiding the features that matter. Your health data stays private, always. Whether you're trying to conceive, just trying to understand your own patterns, or tired of apps that oversimplify your body, CycleAI gives you the full picture — every symptom, every day, mapped.

Your cycle changes everything. Most fasting apps ignore it. Estrogen, progesterone and testosterone each shift your metabolism, energy and hunger differently across your cycle. Flow Fasting tracks where you are and guides your fasting practice around it, so you always know the right window for your phase, and why it works. Whether you struggle to fast during your luteal phase, feel unstoppable in follicular, or want to understand why your results change week to week - Flow Fasting gives you a science-backed approach for every phase of your cycle. FIVE PHASES. FIVE DIFFERENT FASTING STRATEGIES. Bleed: Rest and restore. Shorter windows, nourishing breaks. Follicular: Your peak window. Longer fasts, stronger results. Ovulatory: High energy. Maintain momentum and protect your gains. Early Luteal: Shift with your hormones. Moderate and consistent. Late Luteal: Listen to your body. Gentle windows, no force. WHAT'S INSIDE: Phase-synced fasting windows Fasting recommendations that adapt to your cycle every day. Built around your phase, your goals and your rhythm. Fasting timer A clean, focused timer with real-time milestone markers at 14, 16 and 24 hours. Know exactly where you are in your fast and what your body is doing. Cycle insights Charts that connect your fasts, weight and steps over time. Spot your patterns, track your progress and understand how your cycle shapes your results. Daily log Track weight, steps, symptoms, energy, mood and sleep every day. Watch your insights build as your data grows. Sync your steps from Apple Health with one tap. Toggle it on in Settings to see your activity alongside your fasting and cycle date. Phase nutrition guide What to eat in every phase of your cycle. Food directly affects how well you fast - Flow Fasting connects the two. By phase comparison See how your energy, mood, sleep and fasting performance compare across all five phases. Built from your own data over time. Week planner Plan your fasting windows ahead. Map your cycle, set your intentions and remove the daily guesswork. Science guide The research behind cycle-synced fasting. Hormones, metabolism, autophagy, cortisol and more - all explained through a cycle lens. START FREE: Try Flow Fasting free for 7 days with annual plan. Full access. After your trial, you will be charged $39.99 unless cancelled before the trial ends. Monthly plan available at $7.99 per month, billed immediately. Cancel anytime in App Store settings. For wellness purposes only. Not medical advice. Terms of use: https://flowfasting.com/terms-of-service/