For active perimenopausal women · Free forever

Fast with your cycle.
Not against it.

Enter your cycle dates and get a complete personalized plan — fasting windows, food guide, training protocol, and sleep schedule built for exactly where you are right now.

🔒 No account. No email. Your data never leaves your device.

Your cycle has 5 phases — each one needs a different approach

🌸
Menstrual
13–15 hr fast
Rest & Restore
🌿
Follicular
15–17 hr fast
🔥 Power Phase
⚡
Ovulatory
17+ hr fast
⚡ Peak
🍂
Early Luteal
13–15 hr fast
Moderate
🌑
Late Luteal
13 hrs max
Gentle

How It Works

Your personalized plan in 3 steps

01
Enter Your Cycle Dates
Your last period start date and average cycle length. 60 seconds. No account needed.
02
Find Your Phase
We calculate exactly where you are today and map every upcoming phase with exact dates.
03
Get Your Complete Plan
Fasting windows, food guide, daily schedule, training protocol, sleep plan, and dinner ideas — all in one printable document.

Ready to fast with your body?

Built for perimenopausal women who are done fighting their hormones.

Phasewell · Cycle-Synced Fasting · Free · This is not medical advice — consult your healthcare provider

Tell us about your cycle

We use this to calculate exactly where you are today. Nothing is stored or shared.

28 days

Not sure? 28 days is average. Perimenopausal cycles are often 24–35 days.

5 days

🔒 Your data never leaves your device