Perimenopause changes everything - your cycle, your weight, your energy. PeriFlow tracks your phase and adapts your nutrition, fasting window, and symptom plan to match. Built for irregular cycles. Built for perimenopause.
Most cycle tracking apps were designed for 28-day cycles and ovulation windows. They were not built for the perimenopause experience - shifting cycle lengths, unpredictable phases, and symptoms that don't follow a textbook pattern.
PeriFlow is built specifically for women aged 38-55 navigating perimenopause. Every recommendation in the app - what to eat, when to fast, how to move, which symptoms to track - is tied to your current hormonal phase, even when that phase is hard to identify.
Phase Tracking That Works for Irregular Cycles
PeriFlow identifies your current cycle phase - Rise, Crest, or Root - from your logged data, even when your cycle is longer, shorter, or unpredictable. As perimenopause progresses, cycles naturally become more variable. PeriFlow is built to handle that variability, not ignore it.
Nutrition Adapted to Your Phase
Estrogen and progesterone fluctuate significantly across the perimenopause cycle - and those fluctuations change how your body uses carbohydrates, metabolises fat, and responds to protein. PeriFlow serves daily nutrition guidance calibrated to your current phase. Your Root phase, when progesterone is higher, calls for different foods than your Rise phase, when estrogen is building. You get specific, practical guidance rather than a static meal plan.
Fasting Windows Built for Perimenopause
Intermittent fasting works differently depending on your hormonal phase. Extended fasting windows in the luteal phase can increase cortisol, disrupt sleep, and stall fat metabolism - the opposite of the intended effect. PeriFlow adjusts your fasting window to your phase: a wider window in your Rise phase when estrogen supports insulin sensitivity, a more moderate window in your Root phase when your body needs less metabolic stress. Fasting smarter, not longer.
Symptom Tracking and Pattern Recognition
Log brain fog, hot flashes, poor sleep, mood shifts, bloating, low energy, or any other symptom you are experiencing. Over time, PeriFlow surfaces the patterns - which symptoms cluster in which phase, whether your nutrition changes have reduced their frequency, and what your individual hormonal signature looks like. This is the data you bring to your GP appointment.
Phase Matched Movement
High-intensity training when your body is in a progesterone-dominant phase can increase cortisol and trigger inflammation. PeriFlow recommends movement that matches where you are: strength and intensity work in your Rise phase, more restorative and moderate movement in your Root phase.
Grounded in reproductive endocrinology, not generic wellness.
PeriFlow's recommendations are based on how estrogen affects insulin sensitivity and lipid metabolism, how progesterone interacts with cortisol and sleep architecture, and how both hormones shift across an irregular perimenopause cycle. This is not cycle syncing for a 28-day cycle - it is perimenopause specific tracking.
PeriFlow is for you if:

Your cycle has become unpredictable - longer, shorter, or skipping
You've noticed changes in weight, sleep, mood, energy, or brain clarity
General wellness advice isn't accounting for where you are hormonally
You want a lifestyle tool that complements, not replaces, your medical care
You've tried intermittent fasting and found it backfires in certain weeks

Everything included:

Phase identification for irregular perimenopause cycles
Daily phase-based nutrition guidance
Adaptive fasting window recommendations
Symptom logging with trend analysis and phase correlation
Phase matched movement suggestions
Weekly summaries and phase previews

Perimenopause is not a malfunction. It's a hormonal transition - and with the right information, you can navigate it with clarity and confidence.
Try PeriFlow free for 7 days.

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