★Pair Rhythm M (for men only) [Free]
Pair Rhythm is a pairing app that lets you share your partner's menstrual rhythm with your female partner (girlfriend or wife).
By syncing your apps, you can check your girlfriend's or wife's predicted period, ovulation date, and more. Use it to help you build a better relationship with your partner, whether it's for fertility, contraception, or health management.
(Please use together with your female partner)

Supervising Physician>

LEADING GIRLS Medical Corporation
Chairman of the Board of Directors, LUNA Group Women's Medical Clinic
Dr. Yuki Sekiguchi (MD)

★Recommended for the following men:
・Couples trying to conceive
・Worried about infertility
・Want to predict safe and unsafe days (contraception)
・Want to share their partner's period and ovulation dates
・Want to keep track of their partner's menstrual cycle
・Want to know their partner's physical condition and mood swings
・Want to share schedules (calendars) with their partner

★Industry-First "Pair App"
Pairism has two apps: one for women and one for men. (The app's features and design differ between the men's and women's apps.)
(To share data, your female partner must also install the "Women's App.")

★How to Use - Pairing (Partner Registration) -
When you pair with your female partner, her registered period and future ovulation dates will be synced and shared with the "Men's App."
This allows men to understand information unique to women, such as their menstrual cycle and fertility (safe and unsafe days), helping them understand the rhythms of a woman's mind and body.

★Simple Design
The app features a simple, timeless flat design and an easy-to-understand, intuitive interface. We've focused on streamlined functionality and original Pairism specifications.

★Main Features
①Period Prediction/Ovulation Prediction
Once you've paired with your partner, you can instantly check your expected period, ovulation, and other dates by simply launching the app. You can check your menstrual cycle, which is unique to women and difficult to ask about directly with men, such as fertile periods (dangerous days), infertile periods (safe days), premenstrual symptoms (PMS), and menstrual discomfort, and get advice on how to interact with your partner.

② Rhythm Color
What color is it today?
Pair Rhythm breaks down your menstrual cycle into small segments and displays your partner's mental and physical rhythms using colorful "rhythm colors."
Simply launch the app and see your partner's rhythm (condition) for that day at a glance♪

③ Calendar
This reversible calendar has two displays. Switch between your partner's "fertility" and "health rhythm" with a single touch. With over 300 pop icons, you can save schedules and notes, and use it to share schedules with your partner, manage anniversaries, and more.

④ Specialist Commentary
Female hormones play a vital role in women's health. The menstrual cycle (period) is controlled by the rise and fall of female hormones, causing changes in both your physical and mental health. At Pair Rhythm, specialists provide easy-to-understand explanations of medical knowledge about female hormones and the menstrual cycle to support male partners. Armed with accurate knowledge, you can use it as a reference for how you spend your day and interact with your partner.

LEADING GIRLS Medical Corporation
LUNA Group Women's Health Clinic, Chairperson
Dr. Yuki Sekiguchi (MD)

⑤ Notes
You can register events (schedules) and memos.
You can also use it as a personal diary!
It's also convenient for sharing schedules and anniversaries with your partner (girlfriend, wife, etc.).

⑥ Life Stages
You can switch between graphs to check the rise and fall of male hormones (testosterone) and changes in your mind and body by age.
This app also provides detailed information on the secretion of female hormones (estrogen) with each age, as well as the accompanying changes in a woman's physical and mental state and fertility.
Use it as inspiration for planning your future life with your partner.

⑦ History
Displays birthdays and anniversaries.
By pairing with your partner, you can share important dates, such as the date you started dating or your wedding anniversary, with the app.

⑧ Data Storage ~ Backup ~
By registering an account, the data you register in the app is saved on a dedicated server. Even if you change your phone or your device malfunctions, you can log in with your current account to restore your saved data and resume use, so you can rest assured.

⑨ Notifications
When notifications are enabled, notifications will appear in your smartphone's status bar, letting you know your partner's expected period and ovulation dates in advance.

＜Compatible Models＞
Android 5.0 or higher smartphones
◎Tablet devices are not supported.
◎We do not recommend using devices with a screen resolution of 960 pixels vertically and 540 pixels horizontally or lower, as the app layout will not be displayed optimally.