Cookie Policy

1. What Are Cookies and Similar Technologies?

Cookies are small text files stored on your device when you visit a website. We also use local storage and session storage in your browser to remember preferences and improve performance. In this policy, “cookies” includes these similar technologies where relevant.

2. How Deltaxis Uses Cookies and Storage

We use cookies and browser storage to:

• keep you signed in to your account;
• remember your preferences (e.g. theme, chart settings);
• process payments securely via Stripe;
• ensure platform security and prevent abuse;
• understand how our marketing website is used (analytics), where enabled and with consent where required.

We do not use advertising, retargeting, or social media tracking cookies.

3. Essential Cookies and Storage (Required)

These are strictly necessary for the Platform to function. You cannot opt out of them while using the Services.

3.1 Authentication (app.deltaxis.com)

When you sign in, AWS Cognito sets authentication cookies to maintain your session and secure access. Cookie names are managed by Cognito and may include identifiers such as CognitoIdentityServiceProvider.*.

• Purpose: login, session management, security
• Duration: session or as configured by the authentication provider
• Provider: Amazon Web Services (Frankfurt, EU)

3.2 Browser storage for preferences (app.deltaxis.com)

The application uses local storage (not HTTP cookies) for UI and screener preferences, including:

• deltaxis-theme — light/dark theme;
• chart timeframe and indicator settings;
• favorites and drawings (when not synced to your account);
• cached indicator catalog (performance).

Clearing browser storage may reset these preferences. Some data is synced to our servers when you are signed in.

3.3 Payments (Stripe)

When you subscribe or manage billing, you are redirected to Stripe, which may set cookies necessary for payment processing and fraud prevention.

• Purpose: secure checkout and billing
• Privacy Policy: stripe.com/privacy

4. Analytics Cookies (Google Analytics 4 — Optional)

Our marketing website (deltaxis.com) uses Google Analytics 4 (GA4) to understand how visitors use the site (pages viewed, traffic sources, device type). Data is aggregated and used to improve our marketing and product decisions.

GA4 is provided by Google Ireland Limited (EEA users) / Google LLC (others). Data may be processed in the United States and other countries. See Google’s Privacy Policy.

GA4 is not essential. Where required by law (Switzerland nLPD, EU/UK GDPR), GA4 cookies are placed only after your consent via our cookie banner.

You can:

• refuse analytics via our cookie banner;
• change your choice at any time (re-open banner or clear cookies);
• install the Google Analytics Opt-out Browser Add-on.

The application (app.deltaxis.com) does not use GA4 unless we explicitly state otherwise in an updated version of this policy.

5. What We Do Not Use

• Advertising or retargeting cookies
• Social media tracking pixels
• Cross-context behavioural advertising
• Sale or sharing of cookie data for advertising

6. Managing Your Preferences

6.1 Cookie banner (deltaxis.com)

When you first visit our marketing website, you may see a cookie banner allowing you to accept all cookies, reject non-essential cookies, or customize your choices.

6.2 Browser settings

You can block or delete cookies and clear local storage through your browser. Blocking essential authentication cookies will prevent you from signing in to the Platform.

Guides: Chrome, Firefox, Safari, and Edge all offer cookie controls in Privacy/Security settings.

6.3 Sign out and clear storage

Signing out clears session-related client data tied to your account on the device. You can also clear site data manually in your browser for app.deltaxis.com.

7. Impact of Disabling Cookies or Storage

• Authentication cookies blocked: you cannot log in or use the Platform.
• Local storage cleared: theme, chart preferences, and cached data may reset.
• Analytics blocked: full Platform functionality is maintained; we lose aggregated usage insights on the marketing site.

We respect your choices and will not re-enable non-essential cookies without consent where required by law.

8. Retention

• Session cookies: deleted when you close your browser.
• Authentication cookies: as set by AWS Cognito (typically up to 30 days unless you sign out).
• Local storage: until you clear it or sign out (account-linked data may persist on our servers).
• Analytics cookies: as defined by the analytics provider (e.g. up to 2 years for _ga), if enabled.

9. Third Parties and International Transfers

Cookie-related data may be processed by service providers outside Switzerland, including AWS (EU — Frankfurt), Stripe (EU/US), and optionally Google (US) for marketing analytics. See our Privacy Policy for transfer safeguards.

10. Your Rights

Depending on your location (Switzerland, EEA, UK, US states, etc.), you may have rights to know what data is collected via cookies, object to non-essential processing, and withdraw consent. Contact contact@deltaxis.com from your registered email.

11. Do Not Track (DNT)

There is no industry standard for responding to DNT browser signals. We do not respond to DNT signals but honour preferences set through our cookie banner and your browser settings.

12. Children

The Services are intended for users aged 18 and over. We do not knowingly collect data from minors through cookies or other means.

13. Changes to This Policy

We may update this Cookie Policy from time to time. Material changes will be indicated by updating the “Last updated” date and, where required, a notice on the Platform.

14. Contact

Email: contact@deltaxis.com

Postal address:
Deltaxis roch
c/o ExpertFid & Audit SA
Avenue Viollier 13
1260 Nyon
Canton of Vaud, Switzerland