Press kit
Fast facts
- What it is
- A fitness app that plans training around the menstrual cycle
- Launch date
- November 2026
- Platforms
- iOS and Android
- Founded
- 2026, Los Angeles, California
- Founder and CEO
- Adelina Gubareva
- Company
- Phasly LLC, California
- Price
- 30-day free trial. Your cycle tracker stays free, even if you cancel. Plus $14.99/month or $89.99/year (the trial comes with the annual plan). Complete $19.99/month or $119.99/year
- Website
- phasly.app
- Press contact
- adelina@phasly.app
Description
Three lengths. Use whichever fits, verbatim, no attribution needed.
Phasly (phasly.app) is a cycle-aware workout app with a period tracker that stays free, built for women. Not to be confused with Phrasly, an AI writing tool.
Phasly is a cycle-aware fitness app. It sets a training plan from the phase of your menstrual cycle, then adjusts each day using a short check-in on energy, sleep and symptoms. Cycle-synced workouts work in all 10 modes, including the pill, PMOS (PCOS), perimenopause, menopause, pregnancy and postpartum. It starts with a 30-day free trial, and the period tracker stays free even if you cancel. Coaching and workouts are part of Phasly Plus.
Phasly is a fitness app built around the menstrual cycle. Most training plans assume every day is the same. Phasly sets a baseline from the cycle phase, then adjusts each day from a short check-in on energy, sleep, mood and symptoms, so the plan follows how a woman actually feels rather than what the calendar predicts. It supports ten cycle types, including hormonal contraception, PCOS, perimenopause, menopause and pregnancy, each with its own phase model drawn from peer-reviewed research. Phoebe, the in-app coach, sees the same context. Founded in Los Angeles in 2026 by Adelina Gubareva, a QA engineer who built the app herself.
Works in all 10 modes
Your cycle or life stage sets the baseline, and a daily check-in (energy, sleep, mood, symptoms) decides the day's training. Cycle-synced workouts work in every mode, not only a natural cycle.
- Natural cycle and copper IUD. Training adapts to 5 phases (menstrual, follicular, ovulatory, early luteal, late luteal).
- Pill, patch or ring. Training is planned around active and break days. The withdrawal bleed is not treated as a period.
- Hormonal IUD. Modeled as a natural cycle if you still have periods, a steady plan driven by check-ins if you do not.
- Implant or injection. A steady plan with an adaptation window for the first months.
- PMOS (PCOS). Data-driven, with no predicted ovulation.
- Perimenopause. Phase-based when cycle data exists, symptom-focused when it does not.
- Menopause. Strength and bone-focused training.
- Pregnancy. Week-by-week guidance with conservative, pregnancy-safe training.
- Postpartum. Recovery weeks, pelvic floor first, then a graded return, with breastfeeding-aware notes.
Launching on iOS and Android in November 2026. Join the early access waitlist at https://phasly.app/#waitlist.
What is actually different
Three things that separate Phasly from what already exists. Useful if you are deciding whether there is a story here.
The daily check-in, not the calendar
Cycle-syncing apps typically map a plan onto a textbook 28-day calendar. Cycles are not textbooks, and two women on the same cycle day can feel nothing alike. In Phasly the cycle sets the baseline and the daily check-in adjusts it. That is a deliberately more modest scientific claim than rigid cycle-syncing makes, and a more honest one.
Ten cycle types, not one
Hormonal contraception, PCOS, perimenopause, menopause and pregnancy each get their own phase model and prediction logic, because the underlying physiology genuinely differs. Most competitors model the standard cycle and leave everyone else with a product that quietly does not apply to them.
Built by a QA engineer, in public
Adelina wrote the entire product: the cycle algorithm, the app, the backend, the coach. Her day job is testing software for correctness, which is an unusual background for a founder and a relevant one for an app that makes claims about a person's body.
Founder
Adelina Gubareva — Founder and CEO, Phasly
Based in Los Angeles. Available for interviews in English and Russian.
Adelina Gubareva is the founder and CEO of Phasly, and the QA engineer who built the app herself.
Adelina Gubareva is the founder and CEO of Phasly. She has spent ten years in software, most of it in quality engineering, and currently leads engineering operations at an education technology company. She wrote every part of Phasly herself: the cycle algorithm, the mobile app, the backend and the AI coach. She lives in Los Angeles.
Adelina Gubareva is the founder and CEO of Phasly, a fitness app that plans training around the menstrual cycle.
She has worked in software since 2016, starting in web development and moving into quality engineering, where she spent most of the decade since. She currently leads engineering operations at an education technology company, working on data validation and pipeline testing.
your wordsOne or two sentences on why you built Phasly. What you were doing when you noticed the problem, and what you tried that did not work. This is the paragraph journalists will quote and the only one nobody can write for you.
She built Phasly end to end: the cycle algorithm grounded in peer-reviewed research, the iOS and Android app, the backend and Phoebe, the in-app coach. She lives in Los Angeles.
Assets
Full resolution, one click, no form. If you need something that is not here, ask.
addA single phasly-press-kit.zip with every asset above, linked here. Journalists take the zip far more often than six separate downloads.
The science
Every training recommendation in Phasly traces to published research, not to wellness convention. The sources we lean on most:
- McNulty et al. (2020) — effects of the menstrual cycle on exercise performance in eumenorrheic women
- Cabre et al. (2024) — menstrual cycle and hormonal contraceptive effects on training adaptation
- Wilcox et al. (2000) — timing of the fertile window
- ESSA (2024) — position statement on exercise and the menstrual cycle
- Stacy Sims — female-specific training physiology
One nuance we will correct if you write it the other way: the energy peak is late follicular, not at ovulation, and roughly one in five women experience it distinctly. Phasly does not overstate it, and neither should the story.
What Phasly is not
Please do not write these
- Not contraception. Phasly is not a birth control method and must not be described as one, or as an alternative to one.
- Not a medical device. It is not FDA cleared, it does not diagnose, treat or prevent any condition, and it does not replace a clinician.
- Not a fertility treatment. It tracks a fertile window; it does not help anyone conceive.
We are strict about these because getting them wrong creates real regulatory exposure for a health app, and because women deserve accurate information about their own bodies.
Contact
Adelina Gubareva, Founder and CEO
adelina@phasly.app
(424) 540-2333
Los Angeles, California
Interviews, early access, demo accounts and custom screenshots on request. Same-day reply on weekdays.