Cycle and periods 
Mood and energy 
Water, walks and habits Day 1
Set your goals
Answer a few questions and pick what matters now. It takes about two minutes, and you can start without an account.
Notice your good days, and what makes them
A free app for every stage from 13 on: periods, pregnancy, perimenopause, menopause and after. Log symptoms, cycle, sleep, food and mood in a minute a day, then see your week laid out and take a clear report to your doctor.
Free, with no paywall and no third-party ads.
Slept 7 h 10 m
Good days in October
18 so far
One app for every stage
Pick the stage you're in now. When life changes, the app asks once and keeps your history.
Periods and cycle
Period dates, flow, cramps and PMS.
Period day 2
Medium flow
Trying to conceive
Cycle notes and tests to share with your doctor.
Ovulation test
8:10 AM · logged
Pregnancy
Your week, appointments and symptoms.
Week 24
16 weeks to go
Postpartum
Recovery, broken sleep and mood after birth.
Slept 3 h 40 m
in 2 stretches
Perimenopause
Changing cycles and new symptoms, in one log.
Cycle day 38
Longer than usual
Menopause
Hot flashes, night sweats and sleep.
Night sweats
3:10 AM · mild
After menopause
Strength, bones, sleep and medication.
Strength
12 min done
Teens
First periods, with teen mode for 13 to 17.
Next period
in about 5 days
Menopause symptoms
Hot flashes, night sweats, brain fog, joint aches. Note when and how strong, with one tap.
Hot flash
2:10 PM · mild
Sleep
Bedtime, wake-ups and how rested you feel, side by side with what happened that day.
7 h 10 m
1 wake-up
Weight and food
Meals, protein and fiber, a weekly weight average that ignores day-to-day noise.
Protein
48 of 90 g today
Your month, on one screen
Every tap adds up. These are example screens from the app.
Made for the years when your body changes the rules
Perimenopause can run for years, and symptoms come and go. A short daily log makes it easier to see what shifted, and to explain it in a ten-minute appointment.
- Your periods have become irregular, or stopped
- You wake up hot, or wake up at 3 AM and stay awake
- Your mood, weight or energy moved and you can't say why
- You want dates and notes ready for your next visit
Check-in done
Your week is ready
Oct 23 to 29 · sleep, mood and symptoms
Your first month
Start with two or three things to track. The picture fills in on its own.
Week 2
Patterns show
With two weeks of entries, you can compare nights, meals and moods instead of guessing.
Month 1
A report for your doctor
Dates, symptoms, cycle and medication on a few clean pages, as a PDF you can print or send.
Free tools
Calculators that run in your browser. Nothing you type is stored, and every result is an estimate.
Due date calculator
From your last period or conception date.
Due date
Feb 16, 2027
Period and ovulation estimator
Estimated dates. Not birth control.
Next period
around Nov 12
Pregnancy week by week
Baby size and changes, weeks 4 to 40.
Week 20
about a banana
Menopause symptom checklist
Tick what you notice, print it for your doctor.
Checklist
9 symptoms ticked
Menopause quiz
Six questions that set up your plan.
6 questions
about 2 minutes
Weight routines quiz
Habits and routines that fit your week.
Your routine
3 habits picked
Inside the app
Everything is free, with no trial and no premium tier.
TrackingSymptoms, cycle, sleep, mood, weight and habits.
The Log buttonThe five things you log most, one tap away.
Doctor reportYour weeks on a few pages, as a PDF.
Programs with trainersStrength, yoga, walking and prenatal sessions of 5 to 20 minutes.
Food diaryMeals, protein, fiber and water.
PrivacyNo third-party ads, no data sales, delete any time.
Sarah and Elena, the app's two trainers, lead strength, yoga, walking and prenatal sessions of 5 to 20 minutes picked for your stage, with an easier version of each exercise on screen. Sessions are written from published exercise guidance (NHS for adults, ACOG for pregnancy) and checked against our safety rules before they are filmed. How programs work
Privacy
Your notes stay yours
The app is free. It has an optional shop for supplements and wellness products, kept apart from your health logs, and nothing you track decides what it shows you. What you log is never sold or rented.
Every health fact on this site links to the medical source it comes from. How we check health information
No third-party ads
No ad networks and no advertising or analytics code from other companies in the app.
Encrypted on your phone
Your logs are kept on your phone in an encrypted database, and you can use the app without an account.
Export any time
Download a copy of everything you've logged.
Delete in the app
Close your account from settings, and your data goes with it.
Questions
Is it really free?
Yes. Every feature is free, with no trial and no premium tier.
How is the app free?
An optional shop for supplements and wellness products pays for it. The shop is kept apart from your health logs, and nothing you track decides what it shows you. Teen mode has no shop at all.
Who is it for?
Women and girls from 13 on, at any stage: regular periods, trying to conceive, pregnancy, after birth, perimenopause, menopause and after. Ages 13 to 17 get teen mode, with no shop and no weight-loss goals.
Do I need an account?
You can start as a guest. An account lets you sync between devices and keep your history when you change phones.
Does the app give medical advice?
No. It keeps a record and shows patterns in what you log. Questions about symptoms or treatment belong with your doctor, and the report is there to help with that conversation.
Which phones does it run on?
Her Good Days is on iPhone and Android. The App Store and Google Play buttons on this site go to its store listings.
Start with today
Her Good Days is free, with no third-party ads and nothing to subscribe to. Free on iPhone and Android.