Luneo: Period & Cycle Tracker

Luneo is a calm, private period tracker that learns your cycle. Log when your period starts, add how you feel in a few taps, and Luneo predicts your next period, your estimated fertile window and ovulation, all without an account and without sending a single byte to the cloud. KNOW WHAT IS COMING • Countdown to your next period on a cycle ring, with your cycle day and phase • Predictions that learn from your last six cycles, and a heads-up when your period is late • Estimated fertile window and ovulation day, with a daily chance-of-pregnancy indicator • One tap "Period started" and "Period ended" buttons SEE YOUR WHOLE CYCLE • Monthly calendar with logged periods, predicted periods, fertile days and ovulation • Tap any day to edit: mark period days, flow, symptoms, mood and notes • Hide fertility info if you only want period tracking LOG HOW YOU FEEL • Flow: spotting, light, medium, heavy • 13 symptoms: cramps, headache, bloating, tender breasts, backache, acne, fatigue, nausea, cravings, insomnia, discharge, dizziness, hot flashes • 8 moods, intimacy (protected or unprotected), basal body temperature and free notes UNDERSTAND YOUR BODY • Average cycle and period length, cycle variation and regularity • Cycle length chart and full cycle history • Symptom patterns by phase: see what shows up during your period, follicular, ovulation and luteal phases • Basal temperature chart to spot the post-ovulation rise REMINDERS • Period coming soon (1 to 7 days before), period expected today and period late • Fertile window and ovulation day • Daily check-in at the time you choose All reminders are scheduled on your phone. 100% PRIVATE No account, no ads, no analytics, no cloud. Your cycle data never leaves your phone unless you export it yourself, and you can delete everything with one tap. FREE VS PRO Free includes period logging, the next-period countdown, the calendar with your next predicted cycle, the daily log, the last 3 cycles of history and period reminders. Luneo Pro unlocks your full history, predictions for the next 12 cycles, fertile, ovulation, late-period and daily check-in reminders, symptom patterns by phase, basal temperature tracking, CSV and JSON export, and colour themes. Pro is available as a weekly subscription with a 3-day free trial, a yearly subscription, or a one-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and can be managed or cancelled any time in your Google Play subscriptions. IMPORTANT Luneo is a personal cycle diary, not a medical device and not a contraceptive. Predictions of your next period, fertile window and ovulation are estimates based only on the dates you enter, and cycles vary. Do not rely on them to prevent or plan a pregnancy. Talk to a doctor about anything that worries you.