Your Biological Rhythm,
Fully Optimized.
Join to start your personalized schedule. Align your sleep, focus, and energy with your body's natural circadian clock.
Download on App StoreUnlock Your Peak Performance
Personalized Daily Schedule
Optimized exactly for your chronotype to maximize your daily energy.
Smart Caffeine Tracking
Know exactly when to drink and when to stop for perfect sleep.
Deep Insights & Analytics
Track your biological patterns and see your progress over time.
Smart Notifications
Never miss a biological window with timely, intelligent alerts.
Privacy Policy
Last Updated: April 29, 2026
Welcome to Cirkadian. Your privacy is of paramount importance to us. This Privacy Policy outlines how we handle your data when you use the Cirkadian application.
1. Information We Collect
To provide a personalized circadian rhythm optimization experience, we may collect:
- Account Information: Basic profile information required for authentication.
- Biological Data Inputs: Wake times, sleep times, exercise schedules, and caffeine intake preferences that you actively input.
- Usage Data: Anonymous analytics on how you interact with the app to help us improve the experience.
2. How We Use Your Information
Your data is used exclusively to:
- Generate and refine your personalized daily schedule.
- Send timely, smart notifications aligned with your biological windows.
- Ensure seamless synchronization across your devices via our secure backend.
3. Data Security & Storage
All sensitive information is securely encrypted and stored using industry-standard protocols. We do not sell or share your personal biological data with third-party marketing companies.
4. Your Rights
You reserve the right to delete your account and all associated data at any time directly from the app settings. Upon deletion, your biological data is permanently removed from our active servers.
5. Contact Us
If you have any questions about this Privacy Policy, please contact us at support@biosync-app.com.
Terms of Conditions
Last Updated: April 29, 2026
By downloading or using the Cirkadian app, these terms will automatically apply to you. Please read them carefully.
1. Use of the App
Cirkadian is designed to provide scheduling recommendations based on circadian rhythm principles. It is not a medical device. The insights and schedules provided are for informational and wellness purposes only and should not replace professional medical advice.
2. Subscriptions (Cirkadian Pro)
Access to premium features requires a Cirkadian Pro subscription.
- Payment will be charged to your Apple ID account at the confirmation of purchase.
- Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period.
- Your account will be charged for renewal within 24 hours prior to the end of the current period.
- You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase.
3. Intellectual Property
All rights, title, and interest in and to the application, including its design, text, graphics, and animations, are the exclusive property of the Cirkadian team.
4. Limitation of Liability
We do not guarantee that the app will always be safe, secure, or error-free. We are not responsible for any actions taken based on the scheduling recommendations provided by the app.
5. Changes to Terms
We may update our Terms and Conditions from time to time. We will notify you of any changes by updating the "Last Updated" date on this page.