I built a menstrual cycle tracker with AI insights as a solo indie developer — CycleGuide
Features:
Cycle calendar with phase tracking (menstrual, follicular, ovulatory, luteal)
Hormone phase education
Symptom & mood logging
AI-powered personalized insights
HealthKit sync
PDF report export
The AI part was the most fun to build — instead of generic advice, it reads the user's actual cycle day, symptoms, and phase, then gives context-aware coaching.
Built by one person. Launched on the App Store.
Would love feedback from the community — especially if you've worked with HealthKit or women's health data before.
🔗 [CycleGuide on the App Store]
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