Track your period. Full stop.
A calendar, a guess, a pink flower. They log the days and hand you nothing you can actually train on.
Cycle tracking, meet the barbell
Lift with your cycle,
Lift with your cycle,
not against it.
Ferrabelle is the wellness app that knows your cycle and your barbell. It forecasts your strongest training days by cycle phase, so you plan the heavy lifts for when your body is built to move them.
Privacy-first. Your data is never sold.
Why we exist
Every other app tracks your period.
Every other app tracks your period.
Ferrabelle trains with it.
Your cycle is not a problem to manage. It is a performance signal you have never been able to use. Until now.
Knows your lifts too.
Log the barbell alongside the cycle. Ferrabelle connects the two and learns how your strength moves with your hormones.
Forecasts your strong days.
For many lifters, the strongest days cluster in a window. Ferrabelle learns your pattern and points at it in advance, so you can plan the heavy lifts.
How it works
Three taps in. A training edge out.
Log your cycle and your lifts
A few taps a day. Period, sleep, how the session felt, what you moved. No spreadsheets, no judgement.
Ferrabelle learns YOUR body
The engine calibrates to you, not a textbook average. Every cycle sharpens the forecast for the next one.
Get your Fe Score and strong-day forecast
One readiness number every morning, plus a look ahead at the days your body is primed to hit the heavy stuff.
The Fe Score
One number answers one question. Push, or rest?
Every morning Ferrabelle fuses where you are in your cycle with your sleep, your stress, and how well you recovered, then hands you a single readiness score from 0 to 100. No graphs to decode at 6am. Just the call.
- Cycle phase
- Sleep
- Stress
- Recovery
Ferrabelle is a training and wellness companion, not a medical device and not a contraceptive. It does not provide medical advice, and predictions should not be used to prevent or achieve pregnancy.
0 Fe Score
You are primed to push today.
Phase training forecast
Know your strong days before they arrive.
Your PRs cluster in your follicular window. Ferrabelle maps the week ahead so you plan the heavy lifts there and back off when your body wants a lighter touch.
Deload, period likely Mon
Easy, listen in Tue
Building Wed
Solid day Thu
Peak strength Fri
Go for a PR Sat
Steady volume Sun
Menstrual Follicular Ovulation Luteal
Your data, locked and yours.
Privacy, front and center
Your body’s data stays yours.
Tracking your cycle takes trust. In a post-Roe world that trust is not a nice-to-have, it is the whole point. So we built Ferrabelle to protect you first and impress you second.
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Never sold. Never rented.
Your cycle and your lifts are not a product we auction to advertisers. That is a promise, not a setting.
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No ad trackers, ever
No third-party ad SDKs riding along in the app to leak what your body is doing. None.
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Built to Washington’s My Health My Data Act
Engineered around one of the strictest health-privacy laws in the country from day one, not bolted on later.
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Export or delete everything, anytime
It is your body and your data. Take it with you or wipe it for good, on your terms, whenever you want.
Read our Privacy Policy, our Consumer Health Data Privacy Policy, and how to delete your data.
Early access
Be first through the door.
Public signups open once legal review wraps. Drop your email and you will be at the front of the line the day Ferrabelle goes live.