Period Tracker Featured Image

Period tracking, perfected

Accurate, data-focused, customizable, and private. Introducing the world's most advanced health & period tracking app for iOS. With over 15 beautiful health categories to choose from, tracking your cycle, and your life, is now better than ever.

One Period Tracker Download from App Store
Amazingly accurate period and fertility predictions Featured Image

Amazingly accurate period and fertility predictions

One's Period AI™ identifies patterns to give you the most reliable cycle predictions. The more you use the app, the more accurate the app becomes. Feel more confident everyday knowing exactly when your future period and fertility days occur.

Enter your periods with ease Featured Image

Logging current and past periods is easy

No one looks forward to their periods but logging them has never been easier. Simply tap your period start date and One will handle the rest.

Remember important details about your cycle Featured Image

Remember important details about your cycle

Having irregular or heavy periods may indicate an underlying condition. Have this information at your fingertips when speaking with your healthcare provider. You can even customize the period category, or any category, by adding new groups and tags and track the information that's important to you.

Monitor mood patterns and identify negative influences Featured Image

Monitor mood patterns and identify negative influences

A mood diary can help you to find the small things, as well as the big, that help you stay well and can show you the impact of the positive strategies that you adopt on your well-being.

Track symptoms such as pain, fatigue, memory, anxiety, and depression Featured Image

Track symptoms such as cough, fever, fatigue, aches, pains, and more

Tracking your symptoms can help you and your healthcare team find ways to help you cope more effectively with your symptoms and treatment.

Be prepared for your next doctor's appointment Featured Image

Be prepared for your next doctor's appointment

Quickly recall your prior visits, exams, and illnesses and write down any new diagnosis, treatment options, and medication.

Keep track of any health concerns you may experience while pregnant Featured Image

Keep track of any health concerns while you're pregnant

Being pregnant means OBGYN visits. Easily log your symptoms, aches, pains, and appetite information and have it ready and available to discuss with your physician.

Choose from 15 different health tracking categories Featured Image

Choose from 15 different health tracking categories

Categories include Period, Mood, Symptom, Sex, Fertility, Weight, Activity, Medication, Food, Drink, Beauty, Sleep, Fitness, and Health, or you can create your own custom category and track what's important to you.

Create your own custom tracking category Featured Image

Create your own custom tracking category

Life is not one-size-fits-all. We believe you should have the option of tracking your life the way you want. Creating a custom category gives you the option of tracking anything. You can even personalize the category by choosing a unique color and icon.

Personalize categories with groups & tags Featured Image

Personalize categories with groups & tags

Groups let you create a subset of tags within a category. Tags can be created and edited within each group. Multiple groups can be created giving you endless possible tracking options within each category.

View your past entries in a beautiful and easy-to-read diary Featured Image

View your past entries in a beautiful and easy-to-read diary

Check out the complete history of all your entries with the diary. Each entry is timestamped, grouped, and categorized giving you an ideal summary.

 Learn the science and get helpful tips from the experts Featured Image

View your cycle history and health with charts

Knowledge is power, especially when it comes to tracking your cycles and health. That’s why we’ve given you beautiful cycle statistics that are easy-to-read and readily available at your fingertips.

One Period Tracker Download from App Store