Herelune is a private and supportive menstrual cycle companion designed to help you understand your cycle, record how you feel and receive thoughtful daily guidance.
Track your cycle
Record your period start date, typical cycle length and period duration. Herelune estimates your current cycle day and provides an expected window for your next period.
Understand your cycle
View your estimated menstrual, follicular, fertile and luteal phases in a simple calendar designed to make cycle information easy to understand.
Daily supportive messages
Herelune includes hundreds of supportive messages tailored to different stages of your cycle and how you are feeling.
Mood and symptom check-ins
Log feelings and symptoms such as tiredness, bloating, cramps, low mood and energetic days.
Helpful wellbeing guidance
Selected symptoms can provide general suggestions relating to hydration, nutrition, rest, gentle movement and everyday wellbeing.
Privacy first
Your cycle, symptom and mood information is stored locally within the app on your device. Herelune does not currently require an account, contain advertising or send your menstrual information to an AI service.
Designed for users aged 13 and over.
Important health information
Herelune provides estimated cycle information and general wellbeing guidance only. It is not a medical device and does not provide diagnosis, treatment or personalised medical advice.
Cycle and fertile-window predictions are estimates and should not be relied upon as contraception or pregnancy prevention.
If you experience severe, persistent, unusual or concerning symptoms, seek advice from an appropriate healthcare professional.
Track your cycle, symptoms and moods with supportive daily guidance