Flow Fasting Tracker

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/