Luneo

A private period and cycle diary: predictions, fertile window, symptoms and mood, all on your phone.

app icon Get it on Google Play

Luneo helps you understand your cycle. Log when your period starts and ends, add flow, symptoms and mood in a few taps, and Luneo learns your averages to predict your next period, your estimated fertile window and ovulation. Everything stays on your phone: no account, no cloud, no ads.

Predict

  • Next period countdown on a cycle ring, with your current cycle day and phase.
  • Calendar with logged periods, predicted periods, estimated fertile days and ovulation.
  • Learns your averages from your last six cycles and flags a late period.

Log and understand

  • Daily log for flow, 14 symptoms, 8 moods, intimacy, basal temperature and notes.
  • Insights: average cycle and period length, cycle variation, cycle history chart and symptom patterns by phase.
  • Hide fertility info if you only want period tracking.

Reminders and export

  • Period coming soon, period day, late period, fertile window, ovulation and daily check-in reminders, all scheduled on your phone.
  • Export CSV or a JSON backup and restore it on a new phone.

Private by design

No account, no ads, no analytics, no upload. Your data never leaves your phone.

Free and Pro

The free version includes period logging, the next-period countdown, the calendar with the next predicted cycle, the daily log for flow, symptoms and mood, the last 3 cycles of history and period reminders. Pro unlocks 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 a weekly subscription with a 3-day free trial, a yearly subscription or a one-time lifetime purchase.

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