Feve is a serverless, zero-knowledge companion built to track ovulation, nourish fertility, and keep privacy—completely without cloud storage. Unlike data-mining apps, Feve requires no accounts or email signups, encrypting 100% of logs locally on the phone's chip. It stands out by combining an offline Bayesian ovulation algorithm with a library of 300+ cycle-synced recipes across global cuisines, using targeted nutrient tags to support a female preconception routine.