CLUSTER PERIOD-CYCLES-MENSTRUAL · 228 ENTRIES · EARLIEST ENTRY 2005-12-02
Menstrual cycle tracking apps
This cluster comprises mobile and desktop applications that help users monitor menstrual cycles, predict ovulation, log symptoms and moods, and often provide fertility insights, reminders, and privacy-focused on-device storage. The dated history begins in December 2005 and shows a steady but irregular cadence of new product entries, becoming more frequent in the years just before the index began (e.g., 2026-01, 2026-04). Traction leaders (siklusku, Mooneva Period & Cycle Tracker, Lunara: Period Tracker) all have zero stars, indicating no product has yet emerged as a frontrunner.
Entry timeline
ENTRY TIMELINE
Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.
Members by activity
Activity signals, not revenue.
Build origin · 8 hand-coded · 12 unlabelled
Operator · 1 hobby · 10 commercial · 3 open source · 6 unlabelled
Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.
- 201Period tracker, calendar0★2 yrabandonedlivecommercialPeriod tracking calendar that predicts periods and ovulation, calculates fertile and safe days, supports pregnancy planning, and sends reminders.
- 202Cube Period Tracker0★3 yrabandonedlivecommercialMobile app that tracks menstrual cycles, predicts next periods, and shows calendars and health charts.
- 203periodiccalendar-jdk0★3 yrabandonedliveopen sourceDesktop application that helps women track and predict their menstrual cycle over time.
- 204Libi: Libido & Period Tracker0★5 yrabandonedlivehand-codedMobile app that tracks mood, energy, libido, and menstrual cycles, reveals trends and correlations in personal data, and supports private data export.
- 205Kindara: Fertility Tracker0★5 yrabandonedlivehand-codedcommercialMobile app for tracking menstrual cycles and fertility signs, offering predictions and personalized charts for reproductive health management.
- 206Mensis - Period Tracker with Ovulation Day0★10 yrabandonedlivehand-codedPeriod tracker that predicts menstrual, ovulation, and PMS phases and identifies the most fertile day for conception from logged symptoms.
- 207Period & Ovulation Tracker Pro0★4 yrabandonedlivehand-codedcommercialTracks menstrual cycles, predicts ovulation and fertile days, and provides insights for conception or contraception.
- 208log280★6 yrabandonedlivehand-codedopen sourcePeriod tracking app that logs cycles, symptoms, and daily notes, predicts future periods, and supports local data backup.
- 209Period - period tracker0★4 yrabandonedlivehand-codedcommercialMenstrual cycle and ovulation tracker app that logs flow, symptoms, temperature, and medication, predicts cycles, and provides reminders with private cloud sync.
- 210periodiccalendar0★11 yrabandonedlivehand-codedopen sourceDesktop application that helps women track and predict their menstrual cycle over time.
- 211Fertility & Period Tracker0★8 mostalelivecommercialPeriod and fertility tracker app that predicts menstrual cycles, ovulation, and fertile days using user-entered data and Apple Health sync.
- 212ovAI0★9 mostalelivehobbyAI-powered wellness app that helps women track menstrual cycles, fitness, nutrition, and mental well-being in one place.
- 213Besti Period Tracker0★9 mostalelivePeriod tracker app that monitors cycles, symptoms, and fertility with personalized insights and an optional product marketplace.
- 214Period Tracker `0★10 mostaleliveMobile app that logs periods, symptoms, and moods, predicts future periods and ovulation, and highlights fertile windows with reminders.
- 215Femble: Period Tracker0★1 yrstalelivecommercialCycle tracking app that provides personalized yoga, recipes, and wellness advice tailored to menstrual phases alongside period logging and insights.
- 216Bloomi: Period & Cycle Tracker0★1 yrabandonedlivecommercialPeriod tracking app that logs cycles, predicts periods and ovulation, and provides an in-app assistant for cycle questions.
- 217Period Tracker ·0★3 yrabandonedlivecommercialPeriod tracking app that predicts menstrual cycles, symptoms, and fertility windows.
- 218Period and Ovulation Tracker0★3 yrabandonedlivePeriod and ovulation tracker app that monitors cycles, predicts fertile days, and sends reminders for period management.
- 219Ladybird - Period Tracker0★3 yrabandonedlivePeriod tracking app which records cycles, symptoms, temperature, and notes to predict ovulation and future events.
- 220MyPeriod - Period Tracker0★7 yrabandonedlivehand-codedcommercialPeriod tracker app that predicts next period, ovulation, fertility days, and tracks weight, temperature, mood, and symptoms.
Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.