A cycle tracker for the person supporting her
Know where she is in her cycle, what to expect, and what actually helps. You log when her period starts. Period Partner works out the rest.
We’ll email you when iOS opens.
One tap, from the lock screen
The only thing Period Partner needs from you is the day her period starts. Cycle length, phase and every date on the calendar are worked out, never asked.
Maya
PMS week
Cycle length
29 days
Period length
5 days
Regularity
Fairly regular
September 2026
Period
Fertile
Ovulation
PMS
Predicted
What to expect
Progesterone drops in the week before her period and small things land twice as hard. If she is short with you, that is timing and chemistry rather than a verdict on you. Answer the point, not the tone.
What helps
Lower the bar for the week. Fewer plans, earlier nights, less admin. You are making the week cost her less, not fixing her.
What to avoid
Never ask ‘is it your period?’. It dismisses whatever she actually said, and nothing else you could say turns a tense evening into a fight faster. Deal with the thing she raised.
Her month, simply
Where she is, what is coming next, and how sure the app is about it.
What to expect
Energy, patience and appetite move through the month. See where they tend to sit today, before it surprises either of you.
Energy
Appetite
Patience
Sleep
What to skip
The things that turn a tense evening into a fight, flagged before you say them.
“Is it your period?”
Telling her to push through it
Remarks about the cravings
The argument that can wait
Her forecast
Next period, the PMS stretch and the fertile window, from her own history instead of a day-14 guess.
PMS week
day 2 of 6
Next period
in 5 days
Sharper every month
The more you log, the surer it gets. One sick month does not throw off every date after it.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Advice written for you, not for her
Every day comes with what to expect, what helps and what to skip, matched to her phase. Log a bad pain day or a low mood and the advice changes with it.
The two weeks before her period
What to expect
Progesterone drops in the week before her period and small things land twice as hard. If she is short with you, that is timing and chemistry rather than a verdict on you.
What helps
Her appetite genuinely rises here, and she burns more at rest. Put decent food in the house instead of remarks about the cravings.
What to skip
Park any argument that can wait seven days. It will go better, and it will be about the actual issue rather than about her tone.
A head start on the conversation, not a substitute for having it. Ask her how she is.
Pricing
Free for the first person you track. Add another person for $0.99, once, or AI tips month to month.
Free
$0
forever
The whole app, for one person.
Lock-screen check-ins
Calendar and forecast
Daily tips
Insights
Extra person
$0.99
once each
Add another person on your account, for good.
Everything in Free, for them too
Pay once, no subscription
AI tips
$4.99
/mo
Tips written for her day, not just her phase.
Ask Moru anything
Built on what you logged
An extra person is paid once and AI tips bill monthly, both through the App Store. These lines are not an active Store offer until billing is live. No AI tips? Moru still answers, from the built-in tips library.
Made for whoever is in her corner
Boyfriends, husbands and dads. Track a partner, a wife, a girlfriend or a daughter, and the advice follows her phase, not a script.
Sofia
Day 9 · period in 20 days
Period forecast
Heads-up before the harder week
What helps today
Fertile window
Ovulation
Libido tips
Tracking for your daughter?
Set her profile to Daughter and fertility, ovulation and libido disappear everywhere: the tips, the forecast, the calendar and the notifications.
It is switched off at the source, not just hidden on screen, so nothing can slip back in.
One person free, forever.
The whole app for the first person you track is on us. Add someone else for $0.99, once.
Learns her pattern
Cycle length, period length, how regular she is, and how mood tends to move through the month. All from what you have logged.
Cycle length
29 days
Period length
5 days
Regularity
Fairly regular
varies by 3 days
How she runs, by phase
From what you logged, not from averages of other people. Each out of 5.
| Mood | Energy | Pain | Sleep | |
|---|---|---|---|---|
| Period | ||||
| Follicular | ||||
| Ovulation | ||||
| Luteal |
We’ll email you when iOS opens.
Private by design
The data is on your account, about her cycle. The app treats it that way.
She has no login
There is nothing for her to install, and the app never reads anything from her phone. You log her period starts.
Locked with Face ID
So her cycle is not readable by anyone who picks up your phone.
Delete means gone
Delete all the data removes your account and everything in it straight away. No grace period.
Questions
The things people ask before they start.
No. She has no login and there is nothing for her to install. You log when her period starts, and Period Partner takes it from there.