Track your period, log your moods, and gain insights into every phase. HerFlow helps you and your partner understand cycles better — with complete privacy.
No ads. No data collection. No tracking. Your personal information stays on YOUR device — we can't see it, and we never sell it. Period.
Simple, beautiful, and powerful cycle tracking designed with you in mind.
Track your period with an intuitive calendar. Get accurate predictions for upcoming periods and fertile windows.
Log how you're feeling every day. Track symptoms like cramps, headaches, energy levels, and more.
Understand your patterns with detailed cycle statistics and personalized insights based on your unique data.
Partners can track and understand her cycle phases with thoughtful daily tips on how to be supportive.
Get gentle reminders for upcoming periods and phase changes. Never be caught off guard again.
Choose from multiple color themes designed for everyone. Make the app truly yours.
We built HerFlow with privacy as the foundation, not an afterthought.
All data stays on your device. No servers, no cloud, no access.
No advertisements, no sponsored content, no distractions. Ever.
We don't sell, share, or monetize your data. That's a promise.
Start tracking immediately. No sign-up, no email required.
Have questions, feedback, or just want to say hi? We'd love to hear from you.
Last updated: December 14, 2025
"Your health data is deeply personal. HerFlow is designed with privacy as its foundation — we can't see your data, and we never will."
All your personal data — including cycle information, moods, symptoms, and notes — is stored locally on your device only. We do not have access to this data. We cannot see it, read it, or retrieve it.
We do not collect any personal information:
If you choose to sync with a partner, data is shared only with the specific person you connect with via a unique code. This sync uses anonymous identifiers and does not require creating an account or providing personal information.
In-app purchases and subscriptions are handled entirely by Apple through the App Store. We do not have access to your payment information, credit card details, or Apple ID.
We do not sell, trade, rent, or share your data with any third parties. There are no exceptions to this policy.
Since all data is stored locally on your device, you have complete control. Delete the app, and all your data is permanently removed. You can also clear data from within the app's settings.
HerFlow is not intended for children under 13. We do not knowingly collect information from children.
If you have any questions about this Privacy Policy, please contact us at: herflow.app@gmail.com
Your privacy matters. That's why HerFlow keeps everything on your device, where it belongs. 💜