SheSync · Free on iOS
The period tracker your cycle — and your partner — will love
Your cycle just got a best friend. Track your cycle, get predictions and read insights that make sense — free. Add SheSync Pro and you can share your cycle with the people you love, ask the AI anything, and put it all on your home screen.
5.0 on the App Store
Free to track · Privacy-first · Made in Melbourne, Australia
Inside the app
Cycle tracking that's actually pleasant to use
What you can log
Track more than dates
Flow, in one tap
Light, medium or heavy — plus spotting, clotting, or nothing at all. Logging takes a second, and the pattern across months builds itself.
Symptoms, physical and emotional
Cramps, headaches, discharge, cravings, mood and energy. SheSync ties what you log to where you are in your cycle, so "why do I feel like this?" starts having an answer.
Ovulation and your fertile window
Predicted from your own logged history rather than a textbook 28-day cycle — useful whether you're trying to conceive or trying not to.
Cycle and period length
Each cycle is flagged regular or irregular against your own baseline, with your last start date, cycle length and period length always one tap away.
Period reminders
A quiet nudge before your period is due, so it stops arriving as a surprise — and so does your partner's heads-up, if you've chosen to share.
Whatever contraception you're on
Combined pill, minipill, implant, ring or temperature tracking. SheSync asks, and accounts for it, instead of assuming every cycle works the same way.
Why SheSync
A period tracking app that feels like a friend, not a form
Partner sync, one tap PRO
Share your cycle with your partner, a parent or a friend. They see where you are and what it means — no awkward explaining, no guessing games.
A companion, not a calendar
Your character reacts to your logs — happy dances on fertile days, hug vibes for PMS. She grows with you, so logging never feels like a chore.
Digestible, not clinical
No PhD-level jargon walls. SheSync explains your cycle in plain language with simple, everyday actions you can actually take today.
An AI built for cycles PRO
Ask anything about your cycle and get a plain-English answer. Run on our own servers — your chats stay on your phone and never reach another AI company.
Privacy-first by design
In a category where trust is everything, your data powers your insights and nothing else. Delete your account and data whenever you like.
Free to track, Pro to share
Cycle tracking, predictions and insights cost nothing. SheSync Pro unlocks partner sharing, the AI assistant, widgets, extra resources and encrypted cloud backup.
Know your flow
Understand the four phases of your cycle
Your menstrual cycle isn't just "period" and "not period" — it's four distinct phases, each with its own hormones, energy levels and moods. SheSync tells you which phase you're in every day, and what that tends to mean for sleep, workouts, focus and cravings.
Menstrual phase — your period. Hormones are at their lowest; energy usually is too. SheSync suggests gentler days and tracks symptoms so patterns emerge over time.
Follicular phase — estrogen rises and so does energy. A great window for hard workouts, big projects and saying yes to things.
Ovulation — the fertile window. SheSync predicts it from your own history and celebrates it with your companion character (happy dance included).
Luteal phase — progesterone takes over and PMS can arrive. SheSync flags it early for you and for anyone you sync with, so support shows up before you have to ask.
Your oestrogen, progesterone and testosterone across the month — in the app, drawn from your own logged cycle length.
New to cycle syncing?
We wrote a plain-English primer on working with your hormones instead of against them — what the four phases are, what the science actually says, and how to start.
Read Cycle syncing 101 →Thinking about sharing your cycle?
Sharing your cycle with a partner sounds scary until you do it — then it mostly just removes friction. Here's how to have that conversation, and what they'll actually see.
How to share your cycle with your partner →SheSync is a tracking and education tool, not a medical device or contraceptive method. For medical questions about your cycle, talk to your doctor.
Ask anything
A period AI that knows your cycle — and answers like a friend
The AI assistant is part of SheSync Pro.
"Why is my period late?" is a question most people end up typing into a search engine at midnight, then wading through forums and scare stories to answer. SheSync gives you somewhere better to ask.
The in-app AI is built for cycle questions specifically, and — if you switch it on — it can read your own logged symptoms, so the answer accounts for your history instead of a generic average. You control that with a single toggle, and you can turn it off any time.
Alongside it sits a library of short, readable explainers written for real people: what actually causes cramps, why low progesterone matters, what to expect in each phase. One-minute reads, not medical papers.
The AI is there for understanding and everyday guidance — it doesn't diagnose. Anything that worries you is still a conversation for your doctor.
Partner sync
How cycle sharing works
Cycle sharing is part of SheSync Pro.
Pick your person
Partner, parent, best friend — whoever you want along for the journey. Send them an invite from inside SheSync in one tap.
They see what matters
Your person sees where you are in your cycle and what it means day to day — "she might want chocolate and a blanket" beats a biology lecture.
You stay in control
Sharing is always your choice. Change who sees your cycle — or stop sharing entirely — whenever you want.
FAQ
Questions people ask about SheSync
What's free, and what needs SheSync Pro?
Free: tracking your cycle, period and ovulation predictions, flow and symptom logging, your insights and the companion character. No trial, no time limit.
SheSync Pro (a subscription) adds partner sharing, the AI assistant, home-screen widgets, extra resources, and encrypted cloud backup so your history follows you to a new phone. Current pricing is shown in the app and on the App Store.
Worth knowing: on the free plan your logs live only on your phone, so if you lose or wipe the device that history is gone — there is no backup for us to restore. Pro is what turns backup on.
What makes SheSync different from other period tracker apps?
Three things: partner sync (share your cycle with a partner, parent or friend in one tap), an interactive companion character that reacts to your logs, and content written to be genuinely digestible — simple everyday actions instead of clinical jargon.
How does partner sync work?
You choose who to share with and send an invite from inside the app. Your person sees where you are in your cycle and what that means day to day — so they can actually show up for you. You stay in control and can stop sharing at any time.
Is my cycle data private?
Yes. SheSync was designed privacy-first: your data is used to power your predictions and insights, is never sold, and you can delete your account and data at any time from the app or via the account deletion page. The full details are in the SheSync privacy policy.
What does the SheSync AI do?
It answers cycle questions in plain language — things like why a period might be late, or what a symptom usually means. Switch on the "use my cycle data" toggle and it factors in your own logged symptoms, so answers fit your history rather than a generic average. It's there for understanding and everyday guidance, not diagnosis, and you can turn the data access off at any time.
Does SheSync track ovulation and your fertile window?
Yes. SheSync predicts ovulation and the fertile window from your own logged cycles rather than assuming a 28-day average, and flags the phase you're in each day. It's useful whether you're trying to conceive or trying not to — but it isn't a contraceptive method, and it can't confirm ovulation the way a clinical test does.
Is SheSync available on Android?
Not yet — SheSync is on iPhone today. It's built in Flutter, so an Android release would be a port rather than a rebuild, but there's no date to share. If Android matters to you, tell us — demand is genuinely how we prioritise.
How accurate are the period predictions?
Predictions get better the more you log — SheSync learns from your own history rather than assuming a textbook 28-day cycle. Like every period tracker, it's a tracking and education tool, not a medical device or a contraceptive method.
Who makes SheSync?
SheSync is designed and built by Digital Sauce, a boutique Melbourne app studio — product design, privacy-first architecture and Flutter development all done in-house. You can read the full SheSync case study too.
Know your flow. Own your glow.
Free to download on iPhone — your cycle's new best friend is one tap away.
Download SheSync free →