Clue Period & Cycle Tracker vs Flo Cycle & Period Tracker

Understand your body. Plan around your cycle. Know what’s coming next. Clue is the #1 women-led period and cycle tracker – science-backed, privacy-first, and built to help you live in sync with your cycle. Trusted by millions of people worldwide, Clue gives you the knowledge and personalized insight to make confident health decisions, from first period to perimenopause. Headquartered in Berlin, your data is protected by strict European privacy law (GDPR). Track your period and cycle Know when your period is coming, and get personalized predictions based on your unique cycle length, flow, and patterns. See how your cycle affects how you feel Track 200+ symptoms and experiences – cramps, PMS, pain, energy, cravings, mood, skin, sleep, sex drive, discharge, and more. Your patterns, in clear charts. Get ahead of symptoms See what might be coming, from PMS and cramps to energy dips, so you can plan ahead. Set custom reminders so nothing catches you off guard. Understand your fertility Get personalized ovulation and fertile window predictions, based on a clinically-validated algorithm designed to help you conceive. Stay on track with birth control Log your method – pill, IUDs, ring, patch, and more. Track your cycle symptoms even without regular bleeding. Get real answers, backed by science Explore 400+ articles on your cycle, fertility, sex, pregnancy, perimenopause, and reproductive health. Use Clue through every life stage Switch between modes as your needs change. Period tracking, trying to conceive, pregnancy, and perimenopause. Connect a wearable Layer your cycle data with temperature, sleep, and heart rate for deeper health insights. Works with Apple Watch, Oura, WHOOP, Withings, Fitbit, and more. Get more from every cycle with Clue Plus — deeper analysis, advanced predictions, and personalized insights that get smarter the more you track. A few legal details: After you choose the Clue subscription that’s right for you & confirm your purchase, the credit card associated with your iTunes Account will be charged. Once purchased, your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. If you currently have a free trial, any unused time will be forfeited when you purchase a subscription. If you want to renew your subscription, your account will be charged the same amount you paid for your initial subscription, 24 hours before the end of the current period. You can manage or change your subscription at any time, including turning off auto-renewal, by going to the ‘Account Settings’ on your device after the purchase. Note: Clue should not be used as a contraceptive. Clue is made to help people understand their menstrual and reproductive health by tracking their data, as well as predicting fertile days to aid conception. The app does not substitute professional medical advice, diagnosis, or treatment. Your healthcare provider can give you advice on your specific needs and situation. Helloclue.com support.helloclue.com Terms of Service: www.helloclue.com/terms Privacy Policy: www.helloclue.com/privacy

Flo is a science-backed period tracker, ovulation tracker, fertility, and pregnancy app used by over 500 million* women worldwide. Whether you’re tracking your period (regular or irregular), trying to conceive, following changes to your baby and your body during pregnancy, or navigating perimenopause symptoms, Flo is here to support you. Join 500 million users* who use Flo’s science-backed insights, created with 100+ doctors and medical experts, to better understand their menstrual cycle. Is my data safe with Flo? Your health data deserves the highest level of protection. Flo was recognized as ISO 27001/ISMS Team of the Year at the 2025 PICCASO Privacy and Security Awards, honoring our excellence in information security management and long-standing commitment to privacy-first design. - Anonymous Mode: Use the Flo period tracker without linking your name, email, or personal identifiers - Dual ISO certification: Industry-leading security standards to keep your data safe - Secret Chats: Connect with like-minded members who share tips and personal experiences Why choose Flo for period and ovulation tracking? Flo is more than a basic calendar — it’s a smart period tracker designed to help you notice patterns over time. - Log 70+ symptoms and moods to receive more personalized menstrual cycle insights - Support for irregular periods, pre-period symptoms, and cycle changes - Clear summaries you can share with your doctor - An accurate period tracker to help you plan ahead with confidence (Flo is not a method of birth control) Can Flo support my Trying To Conceive (TTC) journey? Flo offers educational features to support your journey to conceive and better understand fertility. - Fertile window and ovulation predictions based on your logged period data - BBT (basal body temperature) tracking - Daily insights to help you prepare to conceive a baby - Partner tools to support shared awareness How does Flo support my pregnancy by week? Once you conceive, switch to Flo for Pregnancy for useful checklists and structured, week-by-week guidance. - Pregnancy tracking with weekly updates as your baby develops - Visuals and diagrams to help explain pregnancy changes - Symptom tracking, reminders, and organization tools - Expert-reviewed content and community stories for peace of mind Is Flo suitable for teens and first periods? Flo provides a safe space for teens to track their first period with age-appropriate education, helping them navigate puberty confidently. Can Flo help me manage perimenopause symptoms? Track changes during perimenopause with tools designed for this life stage. - Perimenopause Score to follow symptom changes month by month - Track cycle-related changes in sleep, energy, mood, and well-being - Clear, personalized insights What do I get with Flo Premium? Unlock deeper, personalized insights and advanced tracking tools with Flo Premium. - Daily, personalized insights - Expert-led video courses on fertility, pregnancy, and birth - In-depth pregnancy features for every milestone and baby stage - Symptom Checker** that provides educational information on PCOS, endometriosis, and fibroids symptoms - Ovulation insights to support your TTC journey - 24/7 virtual Health Assistant for educational support - Flo for Partners: Share updates like menstrual cycle predictions or pregnancy progress, and always stay in control of what you share with your partner Medical disclaimer Flo does not provide medical advice, diagnosis, or treatment, and is not a method of birth control. Predictions are for informational purposes only. Always consult a qualified healthcare professional. Download Flo today and join millions using a trusted period tracker, pregnancy app, and fertility companion. *Total number of users who downloaded Flo, July 2026 **Symptom checker not available in the UK or EU Privacy Policy: https://flo.health/privacy-policy Terms of Use: https://flo.health/terms-of-service