Up to three people
You, her, and one more. Each person gets their own color, and that color follows them everywhere — calendar, reminders, widgets.
Hers · Multi-person period tracker
Two cycles, one calendar.
You have a cycle. So does she. Know whose week it is — before it arrives.
3People per calendar
43Languages
0Ads, ever
Chapter I · The Overlap
Two people. Two PMS weeks. One argument nobody meant to have.
When you share a life with someone who also has a cycle — your girlfriend, your daughter, your roommate, your sister — your hard weeks don't politely take turns. Sometimes they land on exactly the same days.
Most period apps are built for one body, or for a partner who just watches from the outside. Hers is built for two people who are both in it.
One of you keeps the calendar — you log her days next to your own. She doesn't have to install anything, and there's no account to connect.
Chapter II · Try it
Tap a few days. Watch them overlap.
Chapter III · What it does
Predictions for everyone
Not just yours. Hers predicts each person's next period and PMS window, so you can see the collisions coming.
Reminders with each person's name
Set PMS and period reminders per person.
Widgets on your home screen
A tiny question, answered every morning: is anyone on their period today?
Apple Health and iCloud
Syncs with Apple Health, backs up through your own iCloud.
Themes
Pick a theme — it repaints everyone's dots.
Chapter IV · Who it's for
Two names on one calendar.
Me and my girlfriend
Two cycles that don't sync, and one week a month where you both need someone to be the calm one.
Me and my daughter
Her first year of this. She asks you to help her keep track until she gets used to it.
Me and my roommate
Not a couple. Still worth knowing why the kitchen felt tense on Tuesday.
Me and my best friend
Trips, festivals, the beach weekend. Somebody has to look at the dates.
Just me
One person is fine too. Hers works alone, and waits quietly until there's someone to add.
Chapter V · What's not in here
No ads. No feed. No one else in the room.
Hers has no advertising, no social features, and no community timeline. There is no version of this app where a stranger sees your calendar. It syncs through your own Apple Health and your own iCloud — we don't run a server that holds your cycle.
Chapter VI · From the people using it
“It's so simple I upgraded to Pro right away. My wife and I had been using another app — too cluttered, and between work neither of us had the energy for it. This one just solves what two people need.”
“I love the home screen — the type, and the color palette across every screen.”
“A wonderful app for women — and one that respects them. Practical, beautiful, and fairly priced.”
“Clean and beautifully simple — and the predictions have been accurate for me.”
“So easy to use — and the free features are honestly plenty for me.”
Real App Store reviews — translated and anonymized to protect our users' privacy :)
Chapter VII · Pricing
Chapter VIII · Questions
Things people ask.
What is Hers?
Hers: Period Tracker Calendar is an iOS app for logging more than one person's cycle in a single calendar. You keep the calendar on your own phone — up to three people, each with their own color and their own predictions. Tracking one person is free. Hers Pro costs $15.99 a year and unlocks the second and third.
Is there a period tracker for two people?
That is what Hers is for. Most period apps assume one body per phone. Hers holds up to three people in a single calendar, each with their own color and their own predictions. You do not need two accounts or two phones — one person keeps the calendar, and both sets of days sit side by side.
Does she have to install anything?
No. There is no account to connect, no invitation to accept, and nothing for her to download. You log her days on your phone, next to your own. That also means there is no shared link and no data passing between two devices — the calendar only ever exists where you keep it.
Is Hers free?
Tracking one person is free, with no ads and no expiry. Hers Pro is $15.99 per year and adds the second and third person, per-person reminders, home screen widgets, and themes.
Where is my cycle data stored?
Hers syncs through your own Apple Health and your own iCloud. There is no Hers server holding your cycle, so Hers doesn't sell data — there is nothing on our side to sell. There are no ads, no social feed, and no community timeline, so there is no version of this app where a stranger sees your calendar.
What do I need to run it?
An iPhone or iPad running iOS 15.0 or later. Hers is available in 43 languages. There is no Android version. The app is rated 4+, and it does not ask for an account, an email address, or a phone number to start.
All questions · Hers compared with Flo · Tracking more than one person
Is anyone on their period today?
Yes. And you already knew.
Download on the App StoreFree · iOS 15.0 or later