Privacy Policy

Last updated: August 29, 2025

Your privacy is important to us. This Privacy Policy explains how Cello’s GmbH (“we”, “our”, “us”) collects, uses, and protects your data when using our online game and related services.

1. Data Controller

Cello’s GmbH
3114 Wichtrach
Switzerland
Legal contact:
Cello Spring – tickertactics@cello.ch

2. Data We Collect

2.1 Account Data

When you sign up to play the game, we collect and store:

• Email address
• Username
• First and last name

This data is stored and managed by our authentication provider, Clerk.

2.2 Game Data

• Signed-in users may invite guest players.
• For guest players, we only store their player name within the game history table.

2.3 Website Analytics

We collect anonymous usage statistics through a self-hosted Umami analytics instance.
This does not involve cookies or personally identifiable information.

2.4 Cookies and Game State

We may use essential cookies to:

• Maintain your session while you are signed in
• Store temporary game state data during active play

We do not use cookies for advertising or tracking purposes.

3. Purpose of Data Processing

We process your data to:

• Provide, maintain, and improve our online game
• Enable user authentication and account management
• Allow game invitations and multiplayer interactions
• Understand and improve website performance via analytics
• Maintain game state and session continuity

4. Legal Basis for Processing (GDPR)

We process personal data based on:

• Article 6(1)(b) GDPR – Performance of a contract (providing the game)
• Article 6(1)(f) GDPR – Legitimate interest (analytics and session handling)
• Article 6(1)(a) GDPR – Consent (for optional cookies, if introduced later)

5. Data Retention

We retain your data only as long as necessary to:

• Provide the game and associated services
• Comply with legal obligations
• Resolve disputes

Cookies used for game state are session-based and expire automatically.

You may request deletion of your data at any time (see Section 8).

6. Data Sharing & Third Parties

• Account data is managed by Clerk (authentication provider).
• We do not sell or rent your personal information.
• No personal data is shared with advertising networks or third-party analytics providers.

7. International Data Transfers

Data may be stored and processed in Switzerland, the EU, or the USA, depending on our infrastructure and that of our service providers.
We ensure adequate data protection measures are in place in compliance with GDPR and applicable US privacy standards.

8. Your Rights (GDPR & Applicable US Laws)

You have the right to:

• Access your personal data
• Rectify inaccurate or incomplete data
• Request erasure of your data
• Restrict or object to processing
• Data portability (receive a copy of your data)

To exercise your rights, contact us at tickertactics@cello.ch.

9. Children’s Privacy

Our game is not intended for children under 13 years (or the equivalent age of digital consent in your country).
We do not knowingly collect personal information from children.

10. Security Measures

We implement reasonable technical and organizational measures to protect your data against unauthorized access, loss, or misuse.

11. Changes to this Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with the updated date.