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. Each day, it offers one specific suggestion for mood, energy, and support. 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. Otty is available on iOS in English, Spanish, and French, free to try with a subscription for the full features.