What We Learned Building a Warm Period Calculator for the Web

A lot of cycle tools feel heavy, clinical, or built for app stores first. We wanted to test a calmer web experience, so we built Luna Bloom , a period calculator and cycle tracker that helps users estimate next period dates, ovulation timing, fertile windows, symptom history, and reminder flows in one place. The interesting part was product shape. 1. Calm beats clinical for repeat use People return to this kind of tool every month. That changed the design bar. We focused on: soft visual rhythm i