A period tracker to help men...

Spot patterns. Anticipate. Learn. Improve. Know. Defuse. Avoid. Press. Tease. Avoid. Initiate. Tempt. Know when. Chocolate. Brisk walks. Flowers. Backed by research. Community. Your insights. Remind. Warn. Review. See. Guess. Experiment. Note-to-self. Repeat. Live. Happy wife. Life. 28 different days. No two are the same.

Lunarmates helps men stay in sync with their partner's menstrual cycle — so they are less likely to be caught off guard, and learn how to manage the phases alongside your partner.

She tracks her cycle. You follow it. That's it. No guesswork. Less awkward conversations. Just clear awareness of where she is in her cycle — every single day.

What you get:
Cycle calendar — See your partner's current cycle phase at a glance. Know when her period is due, when it started, and where she is in her cycle today.
Push notifications — Get notified at each phase change the night before.
Home screen widget — Visible reminders on phase status to help you take that extra bit of information into account.
Insights forum — Share and read insights related to each day from other men also trying to navigate the cycle. Learn from a community that gets it.
Recurring notes-to-self: See what you wrote last month on this day of the 28-day cycle. Pinpoint observations and inform your experiments tied to specific days on her cycle calendar. Keep track of patterns, moods, or anything that helps you optimize and imporve.

For her too:
Women say that when their partners use Lunarmates they are more satisfied with their relationship. Women can also use Lunarmates to track their own cycle if they want to get away from the over-feminization of typical menstrual tracker apps. See the notes that men make about women on particular days to anticipate the thoughts of their partner.

Why Lunarmates?
Most period tracking apps are built for women, by women. Lunarmates is the missing piece — the app that brings her cycle awareness into his daily life, simply and respectfully.
Understanding your partner's cycle isn't just practical. It builds empathy, reduces conflict, and deepens connection. When you know she's on day 24 of her cycle, that context changes everything.

Private and secure
The data is private and never sold. Data is encrypted in transit and stored securely. Accounts can be deleted at any time.

Free to use
Lunarmates is completely free. No subscription. No ads. No premium tier. Just a straightforward app that does exactly what it says.

Get started in a minute

Download Lunarmates
Create a free account
Invite your partner — or have her invite you
Start observing and understanding with a theory of hormonal cycles at hand

Lunarmates. Because relationships are better when you're in sync.