The period tracker built for couples
Otty is a period and cycle tracker built for couples that works just as well solo. It maps the month into five 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.
How it works
- If you track your own cycle: log the day your period starts and Otty paints the month by phase, counts down to your next period, and gives you one tip a day.
- If you track your partner's cycle: you get the phase she is in and one concrete thing to do today, so you stop guessing what helps.
- If you pair up: both phones show the same calendar and the same daily check-in. She chooses what is shared, and pairing is optional.
What couples get
- Comfort Menu: she writes what helps in each phase in her own words, and her partner sees the right list at the right time.
- Comfort Coupons: ninety small promises to give ahead of time and cash in when they are needed.
- Deck Night: 300 conversation cards across six decks, played together on one phone.
- Love notes and milestones: send a note now or schedule it, and keep the dates that matter.
Privacy
Cycle data is stored on your device by default, sign-in is optional, and partner sharing is opt-in item by item.
Where Otty fits
Most trackers were built for one person. Our guide to the best period tracker for couples compares six options on what the partner actually gets, and our best period tracker app guide compares ten trackers by who each one fits.
Otty is available on iPhone in English, Spanish, French, German and Portuguese. It is free to try, with a subscription for each person after the trial.









