Cookie & Tracking Policy

Last updated: February 24, 2026

This policy explains how the Zentia website (www.zentiaapp.com) uses cookies and similar technologies.

What Are Cookies?

Cookies are small text files stored on your device when you visit a website. We also use localStorage, a similar browser storage mechanism that stores data locally in your browser.

Cookies & Storage We Use

Strictly Necessary (No Consent Required)

These cookies and storage are essential for the website and application to function properly. They cannot be disabled.

Under GDPR, we process strictly necessary cookies based on two legal bases: Performance of Contract (to provide the services you requested) and Legitimate Interest (to ensure security and prevent fraud). Because we only use strictly necessary cookies, no consent banner is required.

Cookies

Supabase Authentication Cookies

Purpose: Manage your user session and authentication
Provider: Supabase (our backend service provider)
Type: HttpOnly, Secure cookies
Duration: Session and persistent (as configured by Supabase)
Data: Authentication tokens and session information
Why Essential: These cookies are required for you to log in and use the Zentia application. Without them, you cannot access your account or use the service.

localStorage

We use localStorage to store your preferences and application state locally in your browser:

User Preferences:

zentia-language — Stores your preferred language (English, Spanish, French, or German). Persists until you clear browser data or change your language preference.
theme — Stores your theme preference (light, dark, or system). Persists until you clear browser data or change your theme.

Application State:

selected-account-id — Stores the ID of the financial account you have selected. Used to maintain your selection across page refreshes.
passwordResetRequired — Security flag indicating if a password reset is required.
isOnResetPage — Security flag indicating if you are on the password reset page.

Financial Journal:

draftJournalEntry — Stores a draft journal entry before requiring authentication. Automatically cleared after use.
journalSortOrder — Stores your preferred sort order for journal entries.
usedPrompts — Stores prompts you have already used in the financial journal (to improve your experience).

Feature Feedback:

feature_feedback_share_entries — Stores your feedback voting state for features.

Chart and View Preferences:

tracker-{key} — Stores display preferences for tracker components.
monthly-trends-{key} — Stores display preferences for monthly trends charts.
earning-view-{key} — Stores display preferences for earning views.
spending-view-{key} — Stores display preferences for spending views.
chart-section-{key} — Stores display preferences for chart sections.

Why Essential: This localStorage data is necessary for the application to remember your preferences and provide a personalized experience. Without it, you would need to reconfigure your settings every time you visit the site.

What We Do NOT Use

Important: Zentia does NOT use:

❌ Google Analytics or any other analytics services
❌ Meta Pixel (Facebook Pixel) or any advertising pixels
❌ Marketing cookies or advertising cookies
❌ Third-party tracking services (Segment, Mixpanel, Amplitude, etc.)
❌ Session recording tools (Hotjar, FullStory, LogRocket, etc.)
❌ Cross-site tracking — We do not track your behavior across other websites or apps
❌ sessionStorage — We do not use sessionStorage
❌ IndexedDB — We do not use IndexedDB

We are committed to your privacy and do not engage in any tracking or behavioral monitoring.

How to Manage Your Preferences

Managing Cookies

You can manage cookies through your browser settings:

Chrome/Edge:

Go to Settings > Privacy and security > Cookies and other site data
You can block cookies, clear cookies, or manage site-specific settings

Firefox:

Go to Settings > Privacy & Security
Under "Cookies and Site Data," you can manage cookie settings

Safari:

Go to Preferences > Privacy
Manage cookie settings under "Cookies and website data"

Note: Disabling cookies will prevent you from logging into Zentia, as authentication requires cookies to function.

Managing localStorage

You can clear localStorage data through your browser settings:

Chrome/Edge:

Open Developer Tools (F12)
Go to Application tab > Local Storage
Right-click on the site and select "Clear"

Firefox:

Open Developer Tools (F12)
Go to Storage tab > Local Storage
Right-click on the site and select "Delete All"

Safari:

Open Developer Tools (Cmd+Option+I)
Go to Storage tab > Local Storage
Right-click on the site and select "Clear All"

Note: Clearing localStorage will reset your preferences (language, theme, etc.) and you will need to reconfigure them.

Third-Party Services

Supabase

We use Supabase as our backend service provider for authentication and data storage. Supabase sets authentication cookies automatically when you log in. These cookies are essential for the service to function.

Privacy Policy: https://supabase.com/privacy
Data Processing: Supabase processes authentication data on our behalf. They are GDPR, CCPA, HIPAA, and SOC 2 Type 2 compliant.
International Data Transfers: Supabase infrastructure may be located in various regions, and your data may be processed outside the European Economic Area (EEA). When data is transferred outside the EEA, we ensure appropriate safeguards are in place, including Standard Contractual Clauses (SCCs) approved by the European Commission to ensure your data is protected to EU standards.

No other third-party services are used for tracking, analytics, or advertising purposes.

Data Security

All cookies and localStorage data are:

Encrypted in transit: All data transmission uses HTTPS/TLS encryption
Secure cookies: Authentication cookies are marked as Secure and HttpOnly
Local storage: localStorage data is stored locally in your browser. This data remains in your browser and is used to personalize your experience within the application

Changes to This Policy

We may update this Cookie & Tracking Policy from time to time to reflect changes in our practices or for other operational, legal, or regulatory reasons.

When we make changes:

We will update the "Last updated" date at the top of this policy
For material changes, we will notify you through an in-app notice or by email if applicable

Contact Us

If you have questions about our use of cookies or this policy, please contact us:

Email: support@zentiaapp.com

Your Privacy Rights

For information about your privacy rights and how we handle your personal data, please see our Privacy Policy.

This Cookie & Tracking Policy is effective as of February 24, 2026 and applies to all users of Zentia.