Otty

Otty is a period and cycle tracker built for couples that works just as well solo. It maps the month into simple phases with plain names like Storm (Period) on one shared calendar, and each day it offers one specific suggestion for what helps with mood, energy, and support right now. Couples who pair get Comfort Coupons, Deck Night conversation cards, a shared Comfort Menu, love notes, and nudges that reach the right person at the right time. Cycle data is stored locally by default and sign-in is optional. Available in English, Spanish, French, German and Portuguese on iOS, free to try with a subscription for the full feature set.