Otty

Otty is the cycle tracking app built for couples. Phase-by-phase nudges, a shared calendar, and a sea otter who helps you never drift apart. Free on iOS.

Otty is a period tracker built for both of you, whether the cycle is yours or your partner's. It works on its own too, and the shared parts wait quietly until you pair up. Otty runs the other one for whoever is on the other side, and everything below happens on day 1, which is Storm (Period). Around this day last cycle you logged cramps. Her cramps are real uterine muscle contractions, and heat relaxes the muscle.