28: AI Period Tracker & Health

About

Your energy, strength, appetite and mood shift through your cycle. 28 builds your day, your workouts and your meals around them. 28 combines cycle-based workouts, phase-based nutrition and calorie tracking, hormone health insights and Gaia, your AI wellness companion, on top of simple period and ovulation tracking. Rated 4.6 stars from more than 5,600 ratings in the US App Store. NEW: YOUR DAY, IN ORDER - A new Today screen that walks you through your day in order: check in, learn, nourish and move - It always shows your next step, from morning to night - See your phase, energy and fertile window at a glance NEW: TALK TO GAIA - Check in and ask questions with your voice. Just tap and talk - Prefer typing? Chat with Gaia anytime WORKOUTS THAT MATCH YOUR PHASE - Daily workouts designed for the menstrual, follicular, ovulatory and luteal phases - Programs from trainers of iconic supermodels - Push harder when your energy peaks, and scale back when your body asks for rest NUTRITION & CALORIE TRACKING - Track calories with targets that fit your goals and your phase - Log meals by snapping a photo - Phase-based food guidance for every part of your cycle RECIPES FROM WHAT YOU HAVE - Snap a photo of your fridge, pantry or ingredients - Get recipes matched to your current phase GROCERIES IN ONE CLICK - Order phase-specific groceries in one click through Instacart or Uber Eats MEET GAIA, YOUR AI WELLNESS COMPANION - Ask Gaia about your cycle, energy, cravings, workouts and nutrition, anytime - Get personalized guidance based on your phase and logs - Gaia provides general wellness information, not medical advice PARTNER SHARING - Invite your partner to see where you are in your cycle - They get tips on how to help in each phase, plus your fertile window OURA RING & APPLE WATCH - Connect Oura Ring or Apple Watch to refine your fertile window estimate with your overnight temperature HORMONE HEALTH, EXPLAINED - Daily insights on how estrogen and progesterone typically change across your cycle - Understand shifts in mood, sleep, energy and appetite PERIOD & OVULATION TRACKING - Period calendar with cycle predictions - Fertile window and ovulation estimates - Log symptoms, PMS, mood and more - Sign in with your email or phone number WHY WOMEN CHOOSE 28 Most fitness and diet apps assume every day is the same. Your body doesn't work that way. 28 uses cycle-based wellness to help you train, eat and feel your best all month. 28 is for general wellness and fitness. It is not a medical device and is not intended to diagnose, treat or prevent any condition, or to be used as contraception. Fertile window estimates should not be used to prevent pregnancy. Talk to a healthcare professional about medical concerns. SUBSCRIPTION 28 offers optional auto-renewing subscriptions to unlock full features. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID account settings. Privacy Policy: https://28.co/privacy Terms of Use: https://28.co/terms