Stardust

Stardust is a menstrual cycle and hormone tracking application that integrates astronomical principles with reproductive health science to provide users with a personalized understanding of their body’s rhythms. The app is designed for people who menstruate, offering tools to log period days, symptoms, mood, cervical fluid, basal body temperature, and other biometric data. It then uses this input to predict ovulation, fertile windows, and upcoming periods with a focus on individual biological patterns rather than generic averages. The interface presents cycle phases alongside lunar phases, allowing users to observe correlations between their menstrual cycle and the moon’s cycle — a feature called “Moon Magic” that displays the current lunar phase relative to the user’s cycle day. Another feature, “The Wormhole,” acts as an educational guide that explains how hormones fluctuate across the menstrual cycle and how these changes relate to energy, mood, sleep, and libido. The app also includes a community section called “Stardust Buzz,” where users can read or share experiences, tips, and questions about cycle tracking, fertility, and hormone health. Stardust emphasizes data privacy: all personal health data is encrypted on-device and not shared with third parties; the app does not sell data or use it for advertising. The application is built by a team that includes women and non-binary engineers and designers, and it is regularly updated with new educational content. Users can set custom reminders for taking birth control pills, ovulation tests, or logging symptoms. The dashboard provides visual charts of cycle length, ovulation timing, and symptom patterns over multiple months, which can be exported for sharing with healthcare providers. Stardust also offers a subscription