Yumena: PMS & Period Tracker

Yumena is a period tracker and PMS tracker with mood care built in. It predicts your next period on a period calendar, and when the luteal phase is coming, your character reaches out first with a short letter. When you can see why you feel the way you do, it gets a little easier to be kind to yourself.

Period calendar and cycle prediction

Log the first day of your period and Yumena works out your menstrual cycle length and marks your next period on the calendar. The more you log, the clearer your own cycle pattern becomes, and the more accurate the period prediction gets. Irregular cycles are fine. Yumena is not a simple average calculator. It keeps learning from your rhythm.

A PMS tracker that comes to you

Yumena's character quietly learns your cycle. When PMS mood swings are likely to start, it reaches out first with a short letter. Never pushy, never demanding. That's the Yumena way. Once you know the irritability before your period is a hormonal rhythm and not a flaw, it gets easier to go gentle on yourself that day.

Mood and symptom log in a few taps

Log today's mood and symptoms with a couple of taps. Track cramps, headaches, bloating, cravings, fatigue and mood changes together, and your PMS pattern slowly appears on the period calendar. No long entries required. On days you want to say more, add a short note.

Cycle phases at a glance

The period calendar shows your cycle phases, from the ovulation phase to the luteal phase, alongside your next period, so you can see the whole menstrual cycle on one screen.

Yours alone, on your device

• No account, no sign-up. We never even ask for your email.
• Your cycle, symptom and mood records are encrypted and stored only on your device. Nothing is sent to a server.
• Backups are yours too. Export an encrypted file and keep it wherever you choose.
• App lock (PIN and biometrics) adds one more layer of care.

A little joy

As you spend time together, you collect pieces. Use them to decorate your character's space and make it feel like yours. Opening your period tracker becomes something to look forward to.

Made for

• Anyone who feels like a stranger to themselves before their period.
• Anyone who wants to know their PMS days ahead of time and take care of themselves.
• Anyone who wants to notice the shift before it reaches the people they love.
• Anyone who wants a period tracker and a mood log in one light app.
• Anyone who believes their health records belong nowhere but their own device.

Yumena at a glance

• Period calendar: period start, next period date and period length on the calendar
• Cycle prediction: next period date learned from your own rhythm
• PMS tracker: a letter from your character before your sensitive days
• Mood and symptom log: tap to log, add a short note
• Cycle phase markers, including the ovulation phase and luteal phase
• Reminders for your next period and PMS days
• No account needed. Records encrypted on your device
• Decorate your character's space

Please note

Yumena is not a medical device and does not diagnose or treat any condition. Period prediction and cycle phase markers are for reference only and must not be used for contraception. If something your body is telling you worries you, please talk to a healthcare professional.

• Privacy Policy: https://yumena-lgtm.web.app/privacy/en
• Support: https://yumena-lgtm.web.app/support/