Cookie Policy
Last updated: January 19, 2026
1. What Are Cookies
Cookies are small text files that are stored on your device (computer, tablet, or mobile) when you visit a website. They are widely used to make websites work more efficiently and to provide information to website owners.
OnHealth uses cookies and similar technologies to provide, protect, and improve our service, as well as to personalize your experience and deliver relevant content.
2. Types of Cookies We Use
2.1 Essential Cookies
These cookies are necessary for the website to function and cannot be switched off. They include:
- Authentication cookies: Keep you logged in to your account
- Security cookies: Protect against cross-site request forgery and other security threats
- Session cookies: Maintain your session state as you navigate the app
2.2 Functional Cookies
These cookies enable enhanced functionality and personalization:
- Preference cookies: Remember your settings and preferences (e.g., theme, sidebar state)
- Language cookies: Remember your language preference
2.3 Analytics Cookies
These cookies help us understand how visitors interact with our website:
- Usage analytics: Track which pages you visit and how you use the app
- Performance cookies: Help us identify and fix issues
- Error tracking: Capture error information to improve reliability
3. Third-Party Cookies
Some cookies are placed by third-party services that appear on our pages:
3.1 Supabase
Our authentication provider uses cookies to manage user sessions securely. These are essential for the login functionality.
3.2 Vercel
Our hosting provider may use cookies for performance monitoring and analytics purposes.
4. Cookie Duration
Cookies can be classified by how long they remain on your device:
- Session cookies: Temporary cookies that are deleted when you close your browser
- Persistent cookies: Remain on your device for a set period or until you delete them
| Cookie Type | Duration | Purpose |
|---|---|---|
| Authentication | 7 days | Keep you logged in |
| Session | Browser session | Maintain session state |
| Preferences | 1 year | Remember your settings |
| Analytics | 2 years | Usage analytics |
5. Local Storage and Similar Technologies
In addition to cookies, OnHealth uses:
- Local Storage: Stores data locally on your browser for features like authentication tokens and user preferences
- Session Storage: Temporary storage that is cleared when you close your browser tab
These technologies serve similar purposes to cookies but can store larger amounts of data and are not automatically sent to our servers with each request.
6. Managing Cookies
You have several options for managing cookies:
6.1 Browser Settings
Most web browsers allow you to control cookies through their settings. You can:
- View what cookies are stored on your device
- Delete specific cookies or all cookies
- Block cookies from specific or all websites
- Set your browser to notify you when a cookie is set
Please note that blocking essential cookies may prevent OnHealth from functioning properly.
6.2 Browser-Specific Instructions
For information on how to manage cookies in your browser, visit:
7. Do Not Track
Some browsers have a "Do Not Track" feature that signals to websites that you do not want your online activity tracked. OnHealth currently does not respond to "Do Not Track" signals, but we limit our tracking to what is necessary for providing and improving our service.
8. Changes to This Policy
We may update this Cookie Policy from time to time to reflect changes in technology, regulation, or our practices. We will post any changes on this page and update the "Last updated" date. We encourage you to check this page periodically for updates.
9. Contact Us
If you have any questions about our use of cookies, please contact us at:
Email: privacy@onhealth.com
Address: OnHealth Ltd, London, United Kingdom