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This translation is provided for convenience. If they differ, the original version (Spanish) prevails.

Privacy Policy

Last updated: March 4, 2026

This Privacy Policy applies to the iOS app Murder My Friends, published by Quantum Quacks (hereinafter "we", "us" or "our").

1. Data controller

2. Scope

This policy applies to the processing of personal data in the iOS App and in the associated technical services needed for it to work (authentication, database, push notifications and advertising).

3. Data we collect

We may process the following categories of data:

  1. Account and authentication data:
    • Email address.
    • User identifier (UID).
    • Name and profile photo (if the user sets them).
    • Sign-in provider (for example, Google Sign-In or email/password/magic link).
  2. App usage data and game content:
    • Game code, player list and game status.
    • Game assignments and the history of events related to the game.
    • Interactions needed for the App to work.
  3. Technical and device data:
    • Push notification token.
    • Device type, operating system, language and time zone.
    • Technical and diagnostic logs (for example, errors and performance).
  4. Advertising data:
    • Advertising identifiers (such as the IDFA), only when the user gives permission through the App Tracking Transparency (ATT) prompt.
    • Data on ad impressions and interactions.
  5. Device permission data (only when the user grants them):
    • Camera.
    • Microphone.
    • Photo library.

4. Purposes and legal bases (GDPR)

We process data to:

  1. Provide the service (legal basis: performance of a contract):
    • Create and manage accounts.
    • Let you play games and sync their status.
    • Maintain the security and continuity of the service.
  2. Manage push notifications (legal basis: consent and/or technical legitimate interest):
    • Send alerts about games and relevant activity.
  3. Show advertising and measure its performance (legal basis: consent where required, and legitimate interest in the sustainability of the service):
    • Serve ads in the App.
    • Prevent ad fraud and improve ad quality.
  4. Comply with legal obligations (legal basis: legal obligation):
    • Respond to legal and regulatory requests.

5. Tracking, ATT and ads

On iOS, we ask for permission through the App Tracking Transparency (ATT) framework where applicable. If you do not grant permission, we do not use the advertising identifier to track you across third-party apps/websites.

The App may show advertising through Google AdMob. You can change your tracking preference in iOS:

  • Settings > Privacy & Security > Tracking.

You can also manage your Google ad preferences at:

6. Third-party services

We use providers that may process data on our behalf or as independent controllers, depending on their role:

  1. Google Firebase (Authentication, Realtime Database, Cloud Messaging)
  2. Google Sign-In
  3. Google AdMob and User Messaging Platform (UMP)
  4. Apple (App Store/iOS infrastructure)

7. International transfers

Some providers (for example, Google) may process data outside the European Economic Area. In those cases we apply appropriate transfer mechanisms, including Standard Contractual Clauses where applicable.

8. Data retention

  • Account data: for as long as the account remains active.
  • Game data: for as long as needed to run the game and for technical clean-up.
  • Push token: until you sign out, close your account or the token is technically invalidated.
  • Technical/diagnostic logs: for limited periods, for security and troubleshooting.

9. Account deletion and your rights

If you have an account, you can request its deletion:

  1. From within the App (profile/account section, when available).
  2. By writing to contact@murdermyfriends.com from the email address associated with the account.

You can also exercise your rights of access, rectification, erasure, objection, restriction and portability by writing to the contact email address.

If you live in the EU/EEA, you can lodge a complaint with the competent supervisory authority (in Spain, the AEPD: https://www.aepd.es).

10. Children

The App is not directed at children under 13. If we find that data from a child has been processed without a valid legal basis, we will take steps to delete it.

11. Security

We apply reasonable technical and organisational measures to protect personal data against unauthorised access, alteration, loss or destruction.

12. Changes to this policy

We may update this policy to reflect legal, technical or service changes. We will publish the current version at the official URL and update the "Last updated" date.