Clue

Clue, a female menstrual cycle app from Germany, provides female users with menstrual cycle management, recording, and communication services. It focuses particularly on tracking and quantifying matters related to the female body: emotions, sexual activity, medications, flow, and other aspects associated with menstrual status, offering relevant recommendations. The app calculates and predicts users' menstrual cycles and PMS based on user data, computes fertility windows using global averages, and can achieve greater accuracy through user-inputted ovulation test data. Their latest product, Clue Plus, aims to make Clue accessible to as many people worldwide as possible for just one euro per month (or the equivalent in local currency). Clue Plus, powered by Forecast, offers enhanced analysis and personalized predictions for symptoms related to the menstrual cycle.