For Men vs Cycle Diary

Most cycle apps are built for her. This one is built for you, so you can show up better. For Men: Period Tracker is the tactical partner companion for boyfriends, husbands, and men who pay attention. Track her rhythm across all phases: menstrual, the opportunity window, ovulation, and luteal. Get an actionable playbook for each day without guessing whether it's a bad day or a bad week. WHAT YOU GET • Her cycle at a glance - Current phase, day count, and her next window • Daily game plans - 08:00 survival tips, 12:30 midday check-ins, and 18:30 evening action steps • One-tap text suggestions - Ready-to-send messages tailored to her exact phase and whether you live together or date • Cycle radar alerts - 7, 3, 2, and 1-day advance heads-ups before period, PMS, and fertile windows • Interactive lock-screen actions - Confirm her period started or push the radar out one day straight from your lock screen • Multiple partners supported - Each on her own cycle, organized at a glance • Discreet mode & stealth icons - Change the app icon to a calculator, notes, or timer. Keep partner names off your lock screen. • 100% on-device partner data - All names, dates, and cycle notes stay locked on your iPhone • Offline-first - Works on the subway, on a flight, or anywhere without cell service THE FOUR PHASES MENSTRUAL - Bring warmth, comfort, and patience. Keep plans low-friction. OPPORTUNITY WINDOW - Rising energy and open communication. Green-light new plans, book weekend trips, and tackle big decisions. OVULATION - Peak connection window. Book the table. Say the thing. LUTEAL & PMS - Slow down with her. Fewer plans, zero unforced arguments, more listening. WHO IT'S FOR • Boyfriends who want to stop guessing and start anticipating • Husbands who want to lead with patience and empathy • Couples living together or dating apart • Anyone tracking multiple partners without mixing up dates • Men who demand their personal data stays on their own device PRIVACY BY DESIGN No accounts. No sign-up. No ad networks. No cross-app tracking. Every partner name, cycle date, and note lives strictly in local storage on your iPhone. We only track anonymous aggregate app usage counts so we can improve the app. Zero device IDs, zero names, zero dates, and zero personal information ever leave your device. Delete the app and your data is gone for good. Built for men who notice.

Cycle Diary is a private period tracker and menstrual calendar that lives on your phone. Log your period, follow your cycle, and see the pattern your body has been keeping all along. There is no account to create, no ads, no subscription and nothing behind a paywall. Every feature is free, in 65 languages. TRACK YOUR PERIOD Tap the days your period starts and ends and the calendar fills in around them. Cycle Diary works out your average cycle length and period length from what you actually enter, then shows the next expected period right on the home screen. Cycles that are not clockwork are perfectly normal, so if yours vary you can switch on irregular mode and see an honest date range instead of a single confident day. KNOW YOUR FERTILE WINDOW Turn on fertility predictions and the calendar marks your fertile window and your estimated ovulation day, with higher and lower chance days shaded so you can read a whole month at a glance. These are estimates based on the dates you enter. They are not medical advice and not a method of birth control. LOG MORE THAN DATES A period is not only a date range. For any day you can record flow intensity from spotting to heavy, your mood, symptoms such as cramps, headache, bloating, back pain, breast tenderness, nausea, dizziness, acne, appetite changes, fatigue and insomnia, whether you were sexually active and whether protection was used, and a note in your own words. SEE YOUR OWN PATTERN The history screen lays out every recorded cycle beside the length of the period inside it, so you can tell at a glance whether things are steady or drifting. Averages update as you log. You choose whether predictions are calculated from your recent months or from lengths you set by hand. GENTLE REMINDERS Optional notifications tell you when your period is due, when a heavier day is expected, when your fertile window opens and when your cycle is running late. You pick how many days ahead and at what time of day, and you can switch the lot off. PREGNANCY MODE Expecting? Record the start and expected end of a pregnancy and Cycle Diary pauses predictions and reminders for that stretch rather than guessing at a cycle you are not having. Your history is kept and picks up again afterwards. BUILT TO STAY PRIVATE Your entries live on your device. There is no account, we run no servers of our own, and there is nothing to sign up for. If you are signed in to iCloud your entries also sync to your own private iCloud storage, encrypted, so a new phone or a reinstall brings them straight back. We never see them. No analytics, no advertising, no tracking of any kind. LOCK IT Set a PIN, or unlock with Face ID or Touch ID. You can also hide the app's contents in the app switcher, so a glance over your shoulder shows a blank screen. YOURS TO TAKE WITH YOU Export everything to a CSV file whenever you like, and import a CSV back in. Your data is never held hostage. WHO IT IS FOR Whether you are keeping an eye on your monthly cycle, trying to conceive, watching PMS build in the days before bleeding, following an irregular or unusually long cycle, coming off hormonal birth control, or you simply want a quiet private diary of how each month felt, Cycle Diary stays out of your way. It works offline and opens straight to the calendar. NO ACCOUNT, NO ADS, NO SUBSCRIPTION Nothing is locked. No premium tier, no trial that ends, no upsell, no advertising. The whole app is free and always will be. IN 65 LANGUAGES English, Spanish, Chinese, Hindi, Arabic, French, Bengali, Portuguese, Russian, Indonesian, Urdu, German, Japanese, Vietnamese, Turkish, Korean, Thai, Italian, Dutch, Greek, Polish, Malay, Malayalam, Swedish, Hungarian, Czech, Hebrew, Catalan, Croatian, Danish, Finnish, Slovak, Norwegian, Slovenian and more. Cycle Diary is a tracking and information app. It is not a medical device and gives no medical advice, diagnosis or treatment. For health decisions, speak to a qualified healthcare professional.