Cycle tracker · AI coach · Workout planner

Train in sync with
your cycle & body

Track your cycle. Check-in daily. Phoebe reads your phase, symptoms and training history, then builds the right workout plan

✓ You're on the list! We'll notify you at launch.

First 500 founding members get 10% off the annual plan

  • Your data stays private
  • Free 30-day trial
  • iOS & Android coming soon
Phasly cycle tracker home screen showing late luteal phase, cycle day 26 and today's adapted workout guidance
01
Live cycle context
Today starts with your body
Phase, cycle day, hormones and symptoms in one calm daily view
02
Phoebe learns
Not a fixed algorithm
Every check-in and completed workout makes the next recommendation more personal
01
Track
Cycle, fertility and symptoms
02
Listen
A 30-second daily check-in
03
Adapt
Phoebe learns your real patterns
04
Train
Follow her plan or build your own

The things no plan
ever accounts for

If any of this feels familiar, Phasly was made with you in mind

"Same workout, totally different week"
Phasly reads your phase and adjusts the load so you stop guessing
"I fall apart before my period"
Your plan eases off on purpose, so you stay consistent instead of quitting
"I came off the pill and feel lost"
Phasly learns your real pattern and trains with it — even when it's irregular
"I push through and burn out"
Train with your biology and progress without the burnout

More than cycle syncing
A training system built around you

See how Phasly works
Recovery session in the Phasly app, for the low-energy days of the cycle
Ease off when your body asksRecovery, yoga, mobility and mindful movement
Sumo squat with a dumbbell, a strength session Phasly schedules when the cycle signal is high
Push when the signal is thereStrength, Pilates and progressive programming

Your phases
Your smarter plan

The four phases below are just one chapter. Most women spend years outside them. On the pill, with an IUD, with PCOS, pregnant, postpartum, in perimenopause. Phasly has a mode for every one

Menstrual

Days 1–5
Rest & recover
Energy often dips. Lean into recovery, with zero guilt for going easy.

Follicular

Days 6–13
Build & learn
Energy climbs, it's a good window to build strength and add load.

Ovulatory

Days 14–16
Go for it
Many feel strongest, it's a great time for your hardest sessions.

Luteal

Days 17–28
Maintain & wind down
Early luteal still supports strength. Late luteal eases off.
See all 10 cycle modes

Built for every
season of you

Regular, irregular, paused or changing. Phasly runs 10 cycle modes so it meets you exactly where you are, with a coach who understands what your body is going through

Natural cycle

Pill / patch / ring

Hormonal IUD

Implant / injection

Copper IUD

PMOS (PCOS)

Perimenopause

Menopause

Pregnancy

Postpartum

Built for your body.
be first in line

Get early access →

First 500 founding members get 10% off the annual plan

One app
instead of four

Most women end up stitching this together themselves. Here is what each piece turns into once it knows your cycle

The usual set of apps
Phasly
Period tracker
Cycle and fertility tracking
Notes app
Daily check-in
Workout planner
Adaptive training calendar
Exercise app
Full exercise library
Generic schedule
Phoebe learns your history

Phasly is not another cycle tracker with workout tips. It is a training system that uses your cycle as context and your daily body signals as evidence.

Tracker stays free
forever

Cycle tracking (calendar, phases, hormone diagram, daily check-ins) is free forever. To unlock tips, workout library & the Phoebe AI Coach, start a 30-day free trial of Phasly Plus. Cancel anytime.

Free forever

$0/forever
Cycle tracking, always free
Cycle tracker
Live cycle bar + hormone diagram
Calendar with cycle history
Period & ovulation predictions
Daily check-in (energy, sleep, mood, symptoms)
Get early access

Phasly Complete

$19.99/mo
or $119.99/year
Nutrition coming soon
Everything in Plus
Phase-based nutrition programs
What to eat, when & why per phase
Workouts + nutrition in one plan
Get early access

Hi, I'm Adelina
I built Phasly for us

Adelina Gubareva, founder of Phasly

I came off the pill after years and met my real cycle. Suddenly it clicked: the weeks I felt unstoppable, and the weeks the same workout flattened me.

I'd been grinding through plans built for a man's 24-hour hormones, blaming myself when my body didn't play along. It wasn't me. I was training against my own biology.

No app trained with the female cycle, so I built one. And I want every woman, whatever stage she's currently in, to open it and feel: finally, something made for me.

That's Phasly. Come build it with me. Adelina 💗

Good questions.

Yes. Your intimate activity lives in a separate, private space, and your data is never sold. Phasly is built privacy-first. Your body is your business.

Yes. Phasly is a cycle-aware period tracker, and a fitness app. Most period-tracker apps only log your dates. Phasly turns your cycle into cycle-sync workouts that adapt to your phase and how you feel each day. So you get both, period tracking and personalised, phase-based training, in one app.

Not at all. Phasly runs ten cycle modes. Natural cycle, the pill / patch / ring, hormonal IUD (with or without periods), implant / injection, copper IUD, PMOS (PCOS), perimenopause (with or without a cycle), menopause, pregnancy and postpartum. So it works whether your cycle is regular, irregular, paused or changing.

We're careful here, because the science deserves honesty. There's a growing body of peer-reviewed research on how ovarian hormones (estrogen and progesterone) influence strength, recovery, energy, sleep and injury risk across the menstrual cycle. But the findings vary between individuals, and no one should overpromise a one-size-fits-all "cycle protocol." The largest review on cycle phase and performance says as much: its authors concluded that general guidelines cannot be formed, and recommended a personalised approach instead. So Phasly treats the research as a starting framework, not a rulebook, and personalises it to you.

No, and that's the whole point. Research is clear that your cycle phase is only one input: sleep, stress, training load and how you genuinely feel day to day all shape your energy and recovery just as much. So alongside your phase, Phasly tracks a quick daily check-in, energy, sleep, readiness, mood and symptoms, and adapts your plan to what your body is telling you right now, not just where you are in the month. The more you log, the more it learns your real, personal pattern. Two women on the same cycle day can get different plans, because they feel different.

Cycle tracking (calendar, phases, hormone diagram and daily check-in) is free forever, in all 10 cycle modes. To unlock personalised workouts and the AI Coach, you start a 30-day free trial of Phasly Plus, then $14.99/mo (or $89.99/year). The first 500 founding members get 10% off the annual plan. Cancel anytime.

November 2026. Everyone on the early-access list gets in first, before public launch. (The first 500 to join also get the founding-member discount.)

Ready to train
with your cycle?

Join the early-access list and be the first to know when Phasly launches

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