Once - Menstrual cycle tracker & manager

This is for all women in need of a menstruation tracking calendar.

This is for all women who require a supportive diary to monitor irregular menstrual pain and cycles.

This is for those who wish to gain insights into fertility, ovulation, contraception, and the chances of pregnancy through a calendar system.

This is for all women who find it tedious to mark menstruation and contraceptive pill usage on their calendars repeatedly.

This is for those who discreetly note their bodily symptoms on their calendars.

A Must-Have! Menstrual cycle management app, Once

[We meet the guidelines for menstrual cycle management applications!]

** The menstrual calendar increases in accuracy the more you utilize it!

It intelligently predicts your menstrual cycle, helping you anticipate when menstrual discomfort may occur.

In the menstrual calendar, the anticipated date of menstruation, high fertility days, ovulation days, and contraceptive pill reminders can be viewed at a glance.

The calendar history allows you to see an overview of your menstrual cycles easily.

** Focus on ovulation and fertility dates!

You can effortlessly identify ovulation dates, fertile periods, and expected menstrual dates at a glance, empowering better self-care.

** Scientifically calculated chances of pregnancy!

Taking into account the survival duration of an egg (24 hours) and sperm (3 to 5 days), the day before and after ovulation has the highest pregnancy chances, which we display within the fertile period.

** Prepare both body and mind ahead of key days!

Get notified in advance about important dates (like expected menstruation, high fertility, and ovulation dates) with timely alerts and thoughtful messages to help you plan accordingly.

** Effortlessly preserve your daily records!

Record your information more easily than in a traditional diary.

Upon signing up, you can save all the information you enter, such as menstruation dates, love notes, contraceptive pill usage, memos, as well as the auto-calculated ovulation and fertility periods!

If you switch smartphones or reinstall the app after removal, you can retrieve your data by logging in!

** Capture not only menstruation dates but also special relationship dates!

Easily record your body’s condition or symptoms, the start date of your period, and menstrual pain.

Once will serve as your personal diary, allowing you to log cherished moments!

Rest assured that no one can access your diary without permission, thanks to its security feature.

** Sleek and sophisticated design appealing to women!

A beautiful app is enjoyable to see and easy to use'; the elegant and tidy design enhances usability within the menstrual calendar.

With a straightforward menstrual calendar, anticipate the expected dates of menstruation and fertility effortlessly.

Enjoy a stylish and well-designed calendar application on your phone for tracking your period like a refined diary adorning your desk.

Once FAQ

1. Why can't I install Once?

Installation of v may fail due to lack of device storage, poor network connection, or compatibility of your Android device. So please check the minimum requirements first to make sure Once is compatible with your phone.

2. What is the file size of Once?

Once takes up about 21.7 MB of storage space.

3. Is it once free to download?

Yes, Once is free to download. But it does contain in-app purchase.

* Permissions Required

WRITE_EXTERNAL_STORAGE

The app requires WRITE_EXTERNAL_STORAGE to save essential data.

READ_EXTERNAL_STORAGE

The app requires READ_EXTERNAL_STORAGE to access saved data.

GET_ACCOUNTS

The app utilizes GET_ACCOUNTS to enhance its web performance.

Let’s continue enhancing our experience with Once, which is dedicated to providing excellent service :D

This service includes in-app purchase items, which will incur additional charges for purchases.