period tracking, reimagined

your cycle,
on your terms.

Most period apps were built for 28-day cycles and baby planning. Rue was built for you, whatever your cycle looks like, whatever your reasons for tracking.

Download on the App Store see what it does →
free to download
works without an account
no Rue servers, ever
day 3
menstrual phase
menstrual
follicular
ovulation
luteal
the problem with other apps

period apps were built
around one goal.
yours wasn't.

other apps: predict, predict, predict
Prediction isn't support.
Most apps fixate on telling you when your next period will arrive, framing your cycle as a scheduling problem to optimize. But a date isn't understanding. It's a guess dressed up as certainty.
rue learns your actual patterns and what they mean for you
other apps: 28-day default, always
28 days is a myth propagated by apps.
The average cycle is 28 days. But averages erase individuals. Cycles from 21 to 35 days are all normal, and plenty of people fall outside that. Apps that assume 28 days get irregular cycles embarrassingly wrong.
rue uses your history, not a textbook average
other apps: fertility windows and baby emojis
Not everyone is tracking to conceive.
Cycle tracking has been colonized by fertility marketing. Ovulation windows, conception tips, pregnancy tests pushed at everyone regardless of why they opened the app. Your cycle is a vital sign. It matters beyond reproduction.
rue never assumes why you're tracking
other apps: cloud sync, accounts, data brokers
Your health data is not a product.
Period data is among the most sensitive health information you generate. Several major apps have been caught sharing it with Facebook, employers, and insurers. This has been documented in court filings and congressional investigations.
rue stores everything on your device. that's it.
for irregular cycles

irregular cycles
are not a bug.

PCOS, perimenopause, thyroid dysfunction, chronic stress: dozens of real, common reasons cycles don't follow a schedule. Most apps treat this as an error to correct. Rue treats it as the reality it is.

No shame, no "you should be regular by now". Rue tracks what you actually have, not what an algorithm thinks you should.
Predictions come with honest confidence levels. When your cycle is unpredictable, Rue says so, rather than projecting certainty it doesn't have.
Pattern Mirror finds your signals, not the textbook's. Even unpredictable cycles have pre-period signals. Rue finds yours.
Export your history for your doctor. Irregular cycles deserve medical attention, not dismissal. Rue's export gives you the data to advocate for yourself.
1 in 10
people with ovaries have PCOS, one of the most common causes of irregular cycles. Most period apps treat them as edge cases.
21–35
days is the clinically normal range for a cycle. Apps that default to 28 days leave a huge number of people seeing "irregular" warnings that aren't warranted.
7–10 yrs
average time to endometriosis diagnosis. Careful cycle logging, including the ability to export it, is one of the most effective advocacy tools you have.
what rue does

everything you need.
nothing you don't.

Built around logging, understanding, and education. Not notifications designed to make you anxious about ovulation windows.

period & spotting log
Log start, end, spotting, and flow with a fast tap. Track as much or as little as you want.
always free
daily log
Two taps. Physical, emotional, and sleep scores, plus symptoms and notes. Takes 10 seconds.
always free
pattern mirror
Spots patterns in your own data: your personal signals, mood clusters, and pre-period signs. Not population averages. Your first insights are free; rue+ unlocks the full set.
free & rue+
phase ring & insights
See where you are in your cycle with phase-specific energy, mood, and body insights grounded in endocrinology.
always free
medication tracking
Track oral contraceptives, supplements, or any daily medication alongside your cycle, with a daily reminder. Up to three medications free; rue+ adds unlimited meds and twice-daily reminders. Stored locally and never shared.
free & rue+
25 articles
In-depth reads on phases, hormones, conditions like PCOS and endometriosis, and how your cycle intersects with everything else. Always free.
always free
calendar view
Full cycle history on a calendar. Tap any past day to see what you logged, how you felt, and where you were in your cycle.
always free
export for your doctor
Text or PDF export of your full cycle history. Bring it to appointments so you're not reconstructing months of patterns from memory.
text free · pdf rue+
widgets & live activity
Your phase and days until your next period at a glance. Home screen widget and an optional Live Activity are free, with control over what shows on your lock screen; lock screen widgets come with rue+.
free & rue+
doctor visit prep
Pick what you want to talk about and Rue pulls together the relevant data and questions to bring. rue+ adds clinical flags: patterns in your logs worth raising with your provider.
free & rue+
guidance for your age
Add your birth year and Rue tailors what "typical" means: 21-45 day cycles in the teen years, 21-35 for adults, and perimenopause context from your 40s. Every note links to its source (ACOG, NHS).
always free
what rue teaches you

your cycle isn't just
a countdown.

Each phase has its own hormonal profile, affecting energy, skin, mood, sleep, and how you process pain. Rue explains all of it.

menstrual
"Rest is not optional. It's biological."
lower energy
introspective
follicular
"Your natural reset window. Estrogen is rising."
rising energy
optimistic
ovulation
"Your energetic peak. Good timing for bold moves."
peak energy
confident
luteal
"Cravings and lower patience are real. And hormonal."
winding down
inward
privacy

your body.
your data.
your phone.

Period data is intimate. It can reveal whether someone is trying to conceive, what medications they take, and what health conditions they have. We designed Rue from the ground up to keep it private, as an architectural commitment rather than a marketing line.

No Rue servers, ever
Your data lives on your device. There are no Rue servers, so we can't see or store your information.
Works without an account
Open the app and start logging. That's the whole setup process.
Works fully offline
The app functions entirely without a connection. By design.
Revenue comes only from rue+
Subscriptions are the entire business model. Your data has never been and will never be part of it.
Optional HealthKit sync
Share with Apple Health if you want. Your choice, fully revocable.
Syncs through your private iCloud
When you're signed into iCloud, your data syncs across your own devices through your private iCloud database. Rue never sees it.
Optional app lock
Lock Rue behind a PIN or Face ID, with an optional decoy PIN. Free.
simple pricing

free to start.
powerful if you want more.

The core of rue is free and genuinely useful. rue+ adds depth for those who want the full picture.

rue, free
$0
free forever. no credit card.
Period & spotting tracking
Daily log (mood, energy, sleep, symptoms)
Next period prediction
Phase ring & cycle insights
First 2 pattern insights
Medication tracking (up to 3)
Optional app lock (PIN / Face ID)
All 25 articles
Apple Health sync
Text export for doctor visits
Doctor visit summary & questions
Home screen widget & Live Activity
Download free
7-day free trial
rue+
$29
.99 / year
~$2.50 per month. Cancel anytime.
Everything in free
Full pattern insights
7-day symptom forecast
Cycle comparison chart (last 6 cycles)
Mood & energy cycle map
Symptom-phase correlations
Full cycle history & stats
PDF clinical export for doctors
Doctor visit clinical flags
Partner heads-up note
Cycle story (12-month summary)
Lock screen widgets
Start free trial

rue+ is $4.99/month or $29.99/year. 7-day free trial, cancel anytime in Apple ID settings.

your body produces data
every day. learn from it.

Private by design, offline by default, and built for cycles that don't fit a textbook.

Download on the App Store

Free to download on iPhone. rue+ is optional.