Your Cycle.
Your Data. Your Control.

A beautifully crafted, completely private Period & Fertility tracker.
Log periods, symptoms, BBT, weight, blood pressure, supplements,
food and exercise, plus your own personal daily journal.

Built for Your Cycle.

Clean, Calm and Completely Private.

Period & Cycle Tracking

Log periods and flow, track cycle lengths and see your whole history at a glance on the calendar, including cycles affected by PCOS/PMOS.

Symptom Logging

Rate 32 symptoms across 7 categories on a simple five-point scale — discomfort, mood, energy, bloating and more, every one ready to log on day one.

Food & Supplement Diary

Log meals with quick tags to see how food affects the way you feel — and track your daily supplements right alongside.

Trends & Insights

Symptom trends, food correlations and exercise activity, drawn in clear, beautiful charts.

Weight Tracking

Log weight in kg, lbs or st with visual trend charts. Monitor changes across your cycle.

Basal Body Temperature

Log basal body temperature in °C or °F, timestamped, and follow the curve across your cycle — the classic way to get to know your own fertile pattern. Premium adds a BBT fertile window.

Blood Pressure

Log a reading — systolic, diastolic and pulse — and follow all three on one chart.

Period & Fertility Predictions

Your calendar predicts your next period from the cycles you log. Premium adds ovulation and fertile-window predictions, a fertile countdown ring, and period and fertile alerts.

Exercise Logging

Track activity type and intensity from a built-in catalogue, or add your own exercises with Premium.

Appointments

Keep every appointment in one place, with notes. Add reminders and a PDF report to take along with Premium.

Premium

Your Own Entries

Add your own symptoms and exercises alongside the built-in catalogue, so the app tracks your cycle your way — not a generic one.

Premium

Home Personalisation

Choose which shortcuts appear on Home, drag them into your own order and colour them your way. The centre of the cycle ring takes a colour of its own too.

Premium

Scheduled Backups

Set backups to run themselves, on a schedule you choose. Manual backup and restore stays free for everyone.

Premium

PDF Reports

Turn months of logs into a clean, doctor-ready PDF — cycles, symptoms, food and supplements — ready to share at appointments.

Total Privacy

All data lives on your device — no cloud, no accounts, no tracking — with a biometric app lock for good measure.

Period and fertility predictions are estimates, not guarantees and should not be used as a method of contraception.

A woman at a café table, checking her phone over coffee

Every symptom, already built in.

A cycle is easier to understand when you can see what happened alongside it, not just the dates. Lunaire Cycle Tracker ships with 32 symptoms across 7 categories, ready to log on day one. With Premium, you can hide the ones that don't apply and add your own symptoms or exercises to track what really matters to you.

Pain 7

Cramps, pelvic pain and back pain are logged separately, so you can see which arrive together and which track with a particular phase.

Cramps Pelvic Pain Back Pain Leg Pain Headache Breast Tenderness Joint Pain

Skin & Hair 5

Skin and hair changes often move with the cycle on a delay, which is exactly the kind of pattern that's impossible to spot from memory.

Acne Oily Skin Excess Hair Growth Hair Thinning Dark Patches

Digestive 5

Bloating and cravings are logged alongside the food diary, so what you ate and how you felt sit on the same day rather than in separate places.

Bloating Cravings Nausea Constipation Diarrhea

Mood & Mental 5

Overall mood is a daily entry in its own right, with anxiety, irritability and stress tracked separately rather than rolled into it.

Overall Mood Anxiety Irritability Stress Level Brain Fog

Energy & Sleep 4

Energy and fatigue are separate entries because they aren't opposites — you can be exhausted and wired on the same day.

Energy Level Fatigue Sleep Quality Insomnia

Hormonal 3

Tracked plainly alongside everything else, and as easy to hide as any other entry if you'd rather not log it.

Discharge Changes Libido Hot Flashes

Body 3

Water retention is logged separately from weight, so a few days of puffiness doesn't read as a weight change on the trend chart.

Weight Change Water Retention Appetite

Food Diary Tags 24

Tag what you ate and it sits next to the symptoms you logged that day, so you can look back across a whole cycle rather than reconstructing it from memory.

Dairy Gluten Sugar Caffeine Alcohol Soy Processed Food Fried Spicy Red Meat High Fiber Anti-Inflammatory Protein Rich Leafy Greens Fermented Omega-3 Berries Nuts Whole Grains Fish Legumes Cinnamon Turmeric Water

Every symptom and exercise is rated on a simple five-point scale.
You can log the same symptom or exercise multiple times a day.

Built for privacy.

Your symptom data is deeply personal. Lunaire Period, Fertility & PCOS/PMOS Tracker is designed from the ground up so your information never leaves your device. No sign-ups, no adverts, no analytics — just a beautiful app that respects you, your body and your data.

No accounts required No cloud storage No analytics No ads Local-only data Biometric app lock