2,000+ women on the waitlist

Know your hard daysbefore they hit

Rythma is the perimenopause app that learns your patterns and predicts symptoms before they arrive. Finally plan your life around your body, not the other way around.

Hand holding phone showing Rythma app

Sound familiar?

“

My cycle is all over the place. 26 days, then 45, then 31...

“

I never know when a bad day will hit. Yesterday I had to cancel an important meeting.

“

My doctor said it's 'just stress.' I know something else is going on.

You're not broken. You're in perimenopause.And Rythma can help.

Features

Meet RythmaBuilt for the chaos of perimenopause

9:41

Good morning, Sarah

Heads up
2days

until hard day

Brain fog
Fatigue
This Week84%
Today
Tue
Wed
Thu
Fri
Home
Patterns
Report
Profile

Plan ahead

Know what's coming so you can plan ahead. Get personalized predictions based on your unique patterns.

Doctor Reports

Be heard at yournext appointment

One-tap PDF to advocate for yourself. Finally have the data to back up what you've been feeling.

  • Symptom summary with frequency data
  • Cycle length patterns over time
  • Identified triggers and correlations
  • Share instantly via email or print
9:41
Symptom Report
Jan 1 - 21, 2026
47+
Hot flashes
12-
Night sweats
8
Hard days
Cycle: 24-47 days
Trigger: Poor sleep
4 patterns found
Home
Patterns
Report
Profile
Your Journey

From chaos to clarityin 8 weeks

W1

Week 1

"What's happening to me?"

9:41
Week 1 of 8

Learning Your Rhythm

Keep logging — patterns are emerging

Predictions Coming Soon

After 3-4 weeks of data, you'll start seeing symptom forecasts here

Journey to insightsWeek 1 of 8
StartFirst patternsFull insights

Tip: Log at the same time each day for best results. Even "good days" help us learn.

Home
Patterns
Report
Profile
  • Symptoms feel random
  • No predictions yet
  • Learning your patterns
W8

Week 8

"I finally understand my body"

9:41
Week 8

Rhythm Mapped

Your patterns are unlocked

84%
4
Patterns
56
Days
23
Predictions
No more guessing
Home
Patterns
Report
Profile
  • 84% prediction accuracy
  • 4 patterns identified
  • No more guessing
Testimonials

What womenare saying

Michelle's photo
Michelle, 49Marketing Director
"I finally stopped feeling crazy. Rythma showed me that my 'random' hot flashes happen every time I sleep poorly. Now I prioritize sleep."
Linda's photo
Linda, 52Teacher
"My doctor actually listened when I showed her the report. First time I felt taken seriously in years."
Amanda's photo
Amanda, 46Consultant
"I went from dreading every day to actually being able to plan. Game changer."
Patricia's photo
Patricia, 48Accountant
"Finally an app that doesn't tell me I'm 'late' every month. It understands that irregular IS my normal."
Karen's photo
Karen, 51Nurse
"After 2 years of confusion, Rythma helped me see my symptoms aren't random. I wish I'd found this sooner."
Diane's photo
Diane, 47Real Estate Agent
"I used to cancel showings last minute. Now I can schedule around my predicted low-energy days."
Rachel's photo
Rachel, 50Software Engineer
"I love that it's based on MY data, not generic averages. The predictions are scary accurate."
Teresa's photo
Teresa, 53Yoga Instructor
"Understanding my cycle patterns has helped me adapt my classes and feel more in control of my body."
Nicole's photo
Nicole, 45Lawyer
"I thought I was losing my mind. Rythma showed me there's a clear pattern to my brain fog days."
Barbara's photo
Barbara, 54HR Manager
"I schedule important meetings when Rythma predicts I'll be at my best. My confidence is back."
Christine's photo
Christine, 48Chef
"30-second logging is perfect for my hectic schedule. I actually stick with it."
Maria's photo
Maria, 51Physical Therapist
"The doctor report feature helped my gynecologist adjust my treatment plan. So helpful."
Michelle's photo
Michelle, 49Marketing Director
"I finally stopped feeling crazy. Rythma showed me that my 'random' hot flashes happen every time I sleep poorly. Now I prioritize sleep."
Linda's photo
Linda, 52Teacher
"My doctor actually listened when I showed her the report. First time I felt taken seriously in years."
Amanda's photo
Amanda, 46Consultant
"I went from dreading every day to actually being able to plan. Game changer."
Patricia's photo
Patricia, 48Accountant
"Finally an app that doesn't tell me I'm 'late' every month. It understands that irregular IS my normal."
Karen's photo
Karen, 51Nurse
"After 2 years of confusion, Rythma helped me see my symptoms aren't random. I wish I'd found this sooner."
Diane's photo
Diane, 47Real Estate Agent
"I used to cancel showings last minute. Now I can schedule around my predicted low-energy days."
Rachel's photo
Rachel, 50Software Engineer
"I love that it's based on MY data, not generic averages. The predictions are scary accurate."
Teresa's photo
Teresa, 53Yoga Instructor
"Understanding my cycle patterns has helped me adapt my classes and feel more in control of my body."
Nicole's photo
Nicole, 45Lawyer
"I thought I was losing my mind. Rythma showed me there's a clear pattern to my brain fog days."
Barbara's photo
Barbara, 54HR Manager
"I schedule important meetings when Rythma predicts I'll be at my best. My confidence is back."
Christine's photo
Christine, 48Chef
"30-second logging is perfect for my hectic schedule. I actually stick with it."
Maria's photo
Maria, 51Physical Therapist
"The doctor report feature helped my gynecologist adjust my treatment plan. So helpful."
Michelle's photo
Michelle, 49Marketing Director
"I finally stopped feeling crazy. Rythma showed me that my 'random' hot flashes happen every time I sleep poorly. Now I prioritize sleep."
Linda's photo
Linda, 52Teacher
"My doctor actually listened when I showed her the report. First time I felt taken seriously in years."
Amanda's photo
Amanda, 46Consultant
"I went from dreading every day to actually being able to plan. Game changer."
Patricia's photo
Patricia, 48Accountant
"Finally an app that doesn't tell me I'm 'late' every month. It understands that irregular IS my normal."
Karen's photo
Karen, 51Nurse
"After 2 years of confusion, Rythma helped me see my symptoms aren't random. I wish I'd found this sooner."
Diane's photo
Diane, 47Real Estate Agent
"I used to cancel showings last minute. Now I can schedule around my predicted low-energy days."
Rachel's photo
Rachel, 50Software Engineer
"I love that it's based on MY data, not generic averages. The predictions are scary accurate."
Teresa's photo
Teresa, 53Yoga Instructor
"Understanding my cycle patterns has helped me adapt my classes and feel more in control of my body."
Nicole's photo
Nicole, 45Lawyer
"I thought I was losing my mind. Rythma showed me there's a clear pattern to my brain fog days."
Barbara's photo
Barbara, 54HR Manager
"I schedule important meetings when Rythma predicts I'll be at my best. My confidence is back."
Christine's photo
Christine, 48Chef
"30-second logging is perfect for my hectic schedule. I actually stick with it."
Maria's photo
Maria, 51Physical Therapist
"The doctor report feature helped my gynecologist adjust my treatment plan. So helpful."
Michelle's photo
Michelle, 49Marketing Director
"I finally stopped feeling crazy. Rythma showed me that my 'random' hot flashes happen every time I sleep poorly. Now I prioritize sleep."
Linda's photo
Linda, 52Teacher
"My doctor actually listened when I showed her the report. First time I felt taken seriously in years."
Amanda's photo
Amanda, 46Consultant
"I went from dreading every day to actually being able to plan. Game changer."
Patricia's photo
Patricia, 48Accountant
"Finally an app that doesn't tell me I'm 'late' every month. It understands that irregular IS my normal."
Karen's photo
Karen, 51Nurse
"After 2 years of confusion, Rythma helped me see my symptoms aren't random. I wish I'd found this sooner."
Diane's photo
Diane, 47Real Estate Agent
"I used to cancel showings last minute. Now I can schedule around my predicted low-energy days."
Rachel's photo
Rachel, 50Software Engineer
"I love that it's based on MY data, not generic averages. The predictions are scary accurate."
Teresa's photo
Teresa, 53Yoga Instructor
"Understanding my cycle patterns has helped me adapt my classes and feel more in control of my body."
Nicole's photo
Nicole, 45Lawyer
"I thought I was losing my mind. Rythma showed me there's a clear pattern to my brain fog days."
Barbara's photo
Barbara, 54HR Manager
"I schedule important meetings when Rythma predicts I'll be at my best. My confidence is back."
Christine's photo
Christine, 48Chef
"30-second logging is perfect for my hectic schedule. I actually stick with it."
Maria's photo
Maria, 51Physical Therapist
"The doctor report feature helped my gynecologist adjust my treatment plan. So helpful."

Ready to stop guessing?

Join 2,000+ women on the waitlist.

First 500 get 50% off for life

FAQ

Frequently
Asked Questions

Get answers to commonly asked questions about Rythma and perimenopause tracking.

Perimenopause is the transition period before menopause, typically starting in your mid-40s. It's marked by irregular cycles, hormonal fluctuations, and symptoms like hot flashes, brain fog, and sleep issues. It can last 4-10 years.