28: AI Period Tracker & Health

In-app purchases
3.3
2.04K reviews
Content rating
Teen
100K+
Downloads
Content rating
Teen
Diverse Content: Discretion Advised
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About this app

Get daily exercise videos, nutrition profiles, and emotional insights customized to your body’s natural cycle.

28 is the world’s first cycle-based fitness and wellness experience offering cycle tracking, transformative exercises, nutrition profiles, and science-backed emotional insights, all hyper-personalized to where you are in your natural cycle and controlled by you.

Designed by supermodel trainers and medical experts to work with your body’s physical and hormonal fluctuations. Powered by nature and innovative technology that personalizes your daily experience while keeping you in control of your cycle data.

Painful Periods Are Common — You Shouldn't Have To Guess

Many women find cycle symptoms affect their daily lives. 28's functional nutrition and phase-specific movement are designed to support hormonal health across every phase of your cycle.

Workout With Your Cycle, Not Against It

Many popular fitness methods were designed for men, not women, with no regard for the menstrual cycle. 28 is the first method of its kind designed to optimize your energy, hormones, strength, and flexibility as you experience changes throughout your cycle.

You Deserve More Than A Period Tracker

Your cycle has four phases. Each phase brings changes to the brain and body. Exercising and eating based on your cycle means changing the types of movements and nutrients during each phase to optimize your physique, hormones, and mood. 28 empowers you with simplified science, breathtaking content, and cutting-edge technology.

Become the Expert of You

You are a mystery. Your body doesn’t have to be. We’ve been locked in the passenger seats of our own bodies for far too long. School taught us little-to-nothing about how our cycles and hormones actually work. 28 empowers you to connect with your body by understanding the beautifully complex nature of your biology, one day at a time.


FEATURES:

Follow Your Cycle
- Daily Cycle Status
- Easily Track Your Periods
- Phase Progress Bar

Science-based Insights
- Daily body predictions
- Daily emotional predictions
- Goals, Guidance, and inspiration

Exercise Videos
- Personalized to match your energy and mood
- Designed by trainers of iconic supermodels
- Lengthen, strengthen, stretch & tone.
- Sculpt booty, tighten abs, tone arms, lean legs
- Workout anywhere, at any time
- No equipment required
- Lightening-fast, high-definition streaming
- View on mobile, desktop, tablet, TV

Nutrition Profiles
- Daily nutrition guidelines to support hormonal health
- Specific suggestions by food groups
- Give your body what it needs, when it needs it
- No more calorie counting
- Coming Soon: Meal plans
- Coming soon: Shopping lists

User Privacy Is Our #1 Priority

Many women have valid concerns regarding the privacy and safety of their personal health data. We're proud to have one of the strongest privacy policies in all of tech, which includes a steadfast commitment to never sell user cycle data to anyone for any reason and to never turn over user cycle data to any government or regulatory authority under any circumstance. Our algorithm stays manually controlled by you, not driven by invasive machine learning. The only cycle data we currently collect is provided voluntarily by the user. It is strictly confidential and used only to provide a customized experience. Any cycle data the user provides now or in the future can be changed or deleted by the user at any time. We do not store deleted cycle data. Once the user deletes that information, it is gone forever.

Embrace your nature and begin today!

Important

28 is a wellness and fitness app. It does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional about your health or your cycle, and before starting any new exercise or nutrition program.
Ovulation, Workout, Nutrition
Updated on
Aug 6, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info, Health and fitness and 5 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

1.98K reviews
Rebekah Van Rhee
May 5, 2025
Over this weekend, this app seems to have taken a nosedive. I can't login, it has a "dev" red label on it. I've been using it a lot and all of a sudden I'm just stuck in a loop of sign in, verify, denied, sign in, verify, deny. Hoping for an update to fix this is underway. have loved the app, disappointed about it not working for sure.
16 people found this review helpful
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28 Wellness Inc.
August 27, 2025
We suffered a glitch but it is now fixed. Be sure to update to the latest version and re-login. Let our customer care team know at support@28.co if you continue to face problems.
Julez Neal
July 11, 2026
DON'T WASTE YOUR MONEY!!!! Got the annual subscription but have only used the app a few times because it never goes past the loading screen. I'd like a refund but no way to get ahold of anybody because I can't even get into the app! UPDATE: 7/11 - I emailed & texted them & NEVER got a reply in email & had to wait a week before they text me back & told me how to trouble shoot the glitch - basically they aren't going to fix it so save your money for better apps like The Birth Recovery Center!!!!!
2 people found this review helpful
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Erica Albrecht
July 22, 2026
Great app for tracking. I love that it recommends what foods to eat during certain times of your cycle. However there are some major bugs needing to be fixed. When attempting to open the app, it will not load. Hence me having to uninstall the app then download it again. This happens way too often, MULTIPLE times a month. PLEASE GET THIS FIXED !
3 people found this review helpful
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What’s new

A faster, smoother experience.
Content rating
Teen
Diverse Content: Discretion Advised
Learn more

App support

Phone number
+13052041853
About the developer
28 WELLNESS, INC.
it@28.co
2121 Biscayne Blvd Miami, FL 33137 United States
+1 305-204-1853

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