Every body has a rhythm. Know yours.
Rhythm tracks your cycle in under 30 seconds a day and turns it into real understanding — of your body, your moods, your energy. And if you choose, it teaches the person who loves you exactly how to show up, through Companion mode.
Good morning
Riya
Today's insight
Low energy is normal now — rest, warmth and iron-rich food help. Be gentle with yourself.
What Rhythm stands for
Because a cycle was never just one person's experience.
Most period apps are built for one person, alone. Rhythm is built for the relationship — the Tracker, and the person who wants to help but was never taught how.
For the person with the cycle
A genuinely excellent personal tracker — log periods, pain, moods, energy, sleep, skin and more in under 30 seconds, and get honest predictions and insights back.
- ✓Quick-tap daily log
- ✓Phase-aware guidance
- ✓Works fully solo, forever
For the person who loves them
The part no other app takes seriously. A partner, friend or parent learns what each phase means — and gets concrete, well-timed ways to actually show up.
- ✓Daily “today card”
- ✓Hormone weather forecast
- ✓Learn courses & gentle nudges
Just for you, no one else
Not everyone wants a Companion — and Rhythm will never nag you to add one. Everything the Tracker gets, with nobody linked, ever.
- ✓No pressure to link
- ✓Private by default
- ✓You own all your data
A tracker that respects your body
Fast to log, honest about uncertainty, and gentle with cycles that don't fit the textbook — because most of them don't.
30-second daily log
Quick-tap chips for flow, pain, mood, energy, sleep, skin, cravings and more — with Indian craving chips like chaat, gulab jamun and Maggi. Everything optional.
Honest predictions
Period, fertile window and ovulation — shown with confidence ranges, never false certainty. For irregular and PCOS cycles, it says so plainly.
“What’s different this month”
Cycle-length trends, symptom heatmaps and mood-vs-phase patterns — surfacing what changed, like cramps worsening across three cycles, before you’d notice.
Pain SOS
One tap when cramps hit: breathing, heat-therapy guide, yoga poses — and honest “when cramps are NOT normal” red flags that nudge you to a doctor.
Cycle-synced reminders
Water, medicines, iron during your period, and pad/cup-change hygiene reminders that actually know where you are in your cycle.
Doctor-ready report
Export a clean summary of your last 6 cycles — dates, symptoms, pain scores — to hand to a gynaecologist. Only ever on your explicit tap.
Four phases. One beautiful rhythm.
Every day keys off your phase — with hormones in plain words, guidance for you and your companion, and food from your actual kitchen. Tap a phase to explore.
RechargeMenstrual
Estrogen and progesterone at their lowest. Energy low, pain possible — the body wants rest and warmth.
Rest is productive. Gentle movement helps — walking, light yoga. Iron loss is real: replenish it.
Peak pampering week. Hot water bag, take over the chores, no big plans, patience with low mood. Offer heat, not lectures.
Ragi porridge, palak dal, beetroot, dates & jaggery, til ladoo, haldi doodh, ginger-ajwain water.
Everybody is different; this is a general pattern — not medical advice.
Turn “why is she upset?” into “it's Day 24 — tonight I've got dinner.”
Most people were never taught any of this. Companion mode translates a cycle into understanding and the right action at the right moment — for partners, friends and parents of teens alike.
Riya is on Day 24.
Energy is likely low and irritability is common. Hormones: estrogen and progesterone are both dropping.
Tonight
Don't plan anything demanding. A hot water bag, dark chocolate, and asking “do you want solutions or just a hug?” go a long way.
Hormone weather — her week ahead
You already know how to plan around rain. Same idea.
Plan the trek for a sunny day. Keep the stormy week light. No endocrinology degree required.
Learn courses
Bite-sized and plain-language: Cycle 101, PMS vs PMDD, PCOS explained for partners, “what to say / what NOT to say”, myths in Indian households, period products explained.
Gesture nudges
“Her period likely starts in ~2 days — stock up on her products and dark chocolate, maybe plan a light weekend.” The app supplies the timing; you supply the care.
Quizzes & streaks
Gamified learning with levels: Rookie → Cycle Scholar → Certified Green Flag 💚. Play sustains what duty can’t — and opens conversations couples never knew how to start.
Shared couple space
An optional shared calendar and a phase-matched date-idea generator — plan the trek for a high-energy week, the blanket-and-movie night for the period.
Anti-surveillance guarantee: the Tracker always owns the data and chooses exactly what's shared. A Companion can never demand access, never sees “sharing reduced” alerts, and gets no location or “last active” features. A supporter — never a monitor.
PCOS support that's central, not an afterthought
India has among the highest PCOS rates in the world — yet most apps treat irregular cycles as an error state. Rhythm treats them as normal for the body they belong to.
For the Tracker
- ✓Long, irregular cycles handled gracefully — no shame-y “40 days late!” alerts
- ✓PCOS-tuned symptoms: acne, excess hair, hair fall, weight changes, sugar cravings
- ✓Lab-report vault — track AMH, insulin, testosterone, thyroid & vitamin D over time
- ✓Indian low-GI guidance: millets over white rice, besan chilla, honest chai-sugar counting
For the Companion
- ✓“How to support a partner with PCOS” course — it’s a hormonal condition, not a diet failure
- ✓Shield her from relatives’ “when are you giving us kids” pressure — we teach how
- ✓Do it together: you get the same nudges — walk after dinner, cook the low-GI meal, skip the sugar too
- ✓Doctor-visit checklist — what to ask, what to note, and “go with her”
Lifestyle change is core PCOS treatment — and it works when two people change together, not when one polices the other.
Rhythm supports — it does not diagnose. Throughout the module: see a gynaecologist.
Privacy isn't a setting. It's the architecture.
Menstrual data is among the most sensitive data that exists. So the answer to “can I trust you?” is structural, not a promise.
You choose what a Companion sees
RevocablePhase only
“She’s in her luteal phase.” Nothing more.
Phase + summary
Mood, energy and symptom summary.
Full logs
Complete access — for the deepest trust.
Local-first by default
Your health data lives on your device. Cloud sync is opt-in and encrypted — if there’s nothing on a server, there’s nothing to leak, sell or subpoena.
No selling. No ads. No trackers.
No third-party analytics on health data, ever. Period-app data scandals are well known — here, trust is the product.
DPDP Act 2023, as architecture
Separate, unbundled consent for everything. Self-serve rights: see, correct, export, nominate, and truly delete all your data in a tap.
Discreet by design
Optional neutral app icon and name, PIN/biometric lock, and neutral notification text — because privacy from corporations means little without privacy from the people around you.
Built for every body — not just a textbook 28-day cycle
Rhythm tracks a cycle, not an identity. Full, graceful support for trans men, non-binary and intersex people, PCOS cycles of 35–90+ days, post-partum and perimenopause. Gender is optional, pronouns are yours, and an optional feminine theme is there if you want it — opt-in, so no one has to ask to be included.
The relationship is the user
“My husband used to take my mood swings personally. Now he reads the today card and just shows up with a hot water bag and chai. Companion mode fixed something words couldn’t.”
Riya & Arjun
Married · Pune
“After years of irregular PCOS cycles, I finally have an app that doesn’t shame me for a 45-day cycle. The lab vault keeps all my AMH and thyroid reports in one place.”
Sana M.
PCOS · Hyderabad
“As a trans man I’d given up on period apps — they all screamed ‘woman’. Rhythm just tracks my cycle, uses my pronouns, and never once made me feel like an error state.”
Kabir R.
Tracker · Bengaluru
“The ‘what’s different this month’ view caught my cramps getting worse across three cycles. I showed the doctor the exported report and it saved half the appointment.”
Meera N.
Tracker · Delhi
Start free. Grow when you're ready.
No ads, ever. Cancel anytime. Your health shouldn't come with fine print.
Free
A genuinely excellent solo tracker. No pressure to ever add anyone.
- ✓30-second daily log
- ✓Honest period & cycle predictions
- ✓4-phase guidance (Recharge → Descent)
- ✓Pain SOS & cycle-synced reminders
- ✓Local-first & private by design
Premium
Unlock Companion mode and the full PCOS module.
- ✓Everything in Free
- ✓Companion mode — today card, hormone weather, courses & nudges
- ✓Full PCOS module + lab-report vault
- ✓Advanced insights & “what’s different”
- ✓Doctor-ready reports
- ✓Discreet mode & anonymous mode
Premium Annual
The full experience — at half the monthly price.
- ✓Everything in Premium
- ✓Save 50% vs monthly
- ✓Shared couple space & date-idea generator
- ✓Early access to new features
- ✓Priority support
Everything you want to know
Companion mode lets someone who loves you — a partner, friend or parent — learn what each phase of your cycle means and how to support you. They get a daily ‘today card’, a week-ahead hormone weather forecast, plain-language courses and gently-timed nudges. You stay fully in control of what they see.
No. You choose exactly what a Companion sees — Level 1 (phase only), Level 2 (phase + mood/energy summary) or Level 3 (full logs) — and intimate activity and journals are private by default. One tap pauses all sharing; unlinking wipes everything from their side. Our anti-surveillance guarantee means a Companion can never demand access, never sees ‘sharing reduced’ alerts, and gets no location or ‘last active’ features.
No. Rhythm tracks a cycle, not an identity. It fully supports trans men, non-binary and intersex people, and anyone with PCOS or irregular cycles. Gender is optional, pronouns are yours, and there’s an optional feminine theme if you want that framing — opt-in, so no one has to ask to be included.
Yes — it’s a first-class feature. Cycles of 35–90+ days are handled gracefully with no shame-y ‘you’re late!’ alerts, symptom tracking is tuned to PCOS, and there’s a lab-report vault for AMH, insulin, testosterone and thyroid values. Throughout: ‘this app supports, it does not diagnose — see a gynaecologist.’
Private by architecture. Your health data lives on your device by default; cloud sync is opt-in and encrypted. We never sell data, run no ad trackers, and keep no third-party analytics on health data. Every consent is separate and unbundled, you can delete everything for real in a tap, and we’re built to India’s DPDP Act 2023, with data stored in India by default.
English and हिन्दी first, with Tamil, Telugu, Bengali and Marathi on the way. Rhythm runs on iOS and Android, works offline, and follows your system light/dark theme. There’s also a Teen mode with verified guardian consent and zero profiling of minors.
Every body has a rhythm.
Know yours.
Start free as a solo tracker — add a Companion only if and when you want to. On iOS and Android, private from the first tap.
Local-first · No ads, ever · DPDP 2023 compliant