Stardust: Period & Pregnancy represents a distinctive approach to menstrual health tracking by integrating empirical cycle data with astrological elements and artificial intelligence. Developed by Stardust App LLC, this iOS application occupies a unique market position by blending scientific tracking methodologies with metaphysical elements, appealing to users seeking both practical health monitoring and spiritual connection to bodily rhythms. The application's core functionality encompasses precise period and ovulation prediction, pregnancy tracking, and comprehensive symptom logging with an extensive database of physical and emotional indicators. Its algorithmic predictions incorporate both conventional cycle tracking mathematics and lunar phase synchronization, while AI-driven daily affirmations and manifestation prompts provide personalized insights based on current cycle phases. The partner sharing feature stands out as particularly innovative, allowing designated contacts to view cycle stages and receive educational content about hormonal fluctuations and supportive behaviors. User experience demonstrates thoughtful design with an aesthetically pleasing interface featuring celestial motifs and intuitive navigation. The dashboard clearly displays current cycle phase, moon alignment, and personalized recommendations while maintaining data privacy through secure encryption. Real-world usage patterns indicate particularly strong engagement with daily check-ins, symptom tracking across 50+ parameters, and the partner notification system that facilitates relationship communication around menstrual health. User feedback trends consistently highlight appreciation for the application's educational components and inclusive design. Reviewer Aspen U (August 3, 2025) noted the application's effectiveness in helping partners understand hormonal fluctuations, while ClanMotherUwU (August 3, 2025) praised the partner feature's utility for WLW relationships. Multiple reviewers including alligator.aliciaa (August 4, 2025) specifically commended the daily affirmations and aesthetic presentation, though the review sample shows limited critical perspectives. The application demonstrates notable strengths in its multifaceted tracking approach and relationship-focused features, though the heavy incorporation of astrological elements may not align with all users' preferences. Data accuracy appears strong based on user reports, with reviewer Aja3gshshjsis (August 3, 2025) noting precise period predictions. The application serves most effectively for users comfortable with both scientific and metaphysical approaches to body awareness, particularly those seeking to involve partners in menstrual health understanding.