What We Learned Building a Warm Period Calculator for the Web

We built Luna Bloom, a web-based period calculator and cycle tracker that focuses on a calm user experience. To achieve this, we used a clear calculation path, saved monthly history, and reminder emails. This approach led to clearer search intent coverage and better page-level messaging. The product is live and uses Next.js, Supabase, and Vercel for development and deployment. This pattern can be applied to small consumer utilities for acquisition and retention.