Cookie Policy
Last updated: 13 czerwca 2026
1. Introduction
Ziro sp. z o.o. ("we") uses cookies and similar tracking technologies (like local storage) on ZIRO.FIT to securely identify you, process payments, and analyze how our service is used.
2. What Are Cookies?
Cookies are small text files stored on your device when you visit a website. They allow us to remember your actions and preferences (such as login status and language) over a period of time.
3. Specific Cookies We Use
We use the following categories of cookies:
3.1 Strictly Necessary (Essential)
These are required for the website to function and cannot be switched off.
- Authentication (Supabase): We use cookies (e.g.,
sb-access-token,sb-refresh-token) to maintain your secure session so you stay logged in while navigating the app. - User Role: We set a
user_rolecookie to route you to the correct dashboard (Trainer vs. Client) instantly. - Security (Stripe): Our payment processor sets cookies to detect and prevent fraud during checkout.
3.2 Functionality
These allow the website to remember choices you make.
- Language: The
NEXT_LOCALEcookie remembers your preferred language (English or Polish).
3.3 Performance & Analytics
These help us understand how users interact with our app so we can improve it.
- PostHog: We use PostHog to track anonymous usage data, such as which features are used most often and if users encounter errors.
4. Third-Party Service Providers
We trust the following third parties who may set cookies on your device to provide their services:
- Stripe, Inc. (Payments & Security)
- Supabase, Inc. (Authentication)
- PostHog, Inc. (Product Analytics)
5. Managing Cookies
Most web browsers allow you to control cookies through their settings preferences. However, if you limit the ability of websites to set cookies, you may worsen your overall user experience, and essential features (like logging in) will not work.
6. Contact Us
If you have questions about our use of cookies, please contact us at: nikhil@ziro.health.