Privacy Policy – Laag Studios
Englisch
Englisch
Privacy Policy – Matheduell
Last updated: December 1, 2025
1. Controller
Controller
Laag Studios
Owner: Jonas Laag
Wiesengrund 3
24896 Treia
Deutschland
Germany
Contact: jonaslaag3@gmail.com
2. Scope
Scope
This privacy policy applies to the mobile app “Matheduell” and all related online services.
It applies worldwide to all users, regardless of residence or country of use.
All data processing is carried out in accordance with the requirements of the EU General Data Protection Regulation (GDPR) and the German Federal Data Protection Act (BDSG).
3. Basic Principle
Basic Principle
The app processes as little personal data as possible.
The app can be used largely anonymously.
No real names are required.
4. Voluntary User Data
Voluntary User Data
Voluntarily provided information may include:
– freely chosen player name (no real name required)
– avatar selection
– game progress, high scores, statistics
The information cannot be used to identify a real person.
5. Technical Data
Technical Data
When using the app, the following technical data may be processed:
– device type and operating system version
– language settings
– app version
– timestamps of access
– technical log data
All data is stored anonymously or pseudonymously.
6. Firebase Authentication
Firebase Authentication
The app uses Firebase Authentication for anonymous sign-in.
Only a random user ID (UID) is generated.
No email addresses, phone numbers, or real names are collected.
7. Cloud Firestore
Cloud Firestore
Firebase Cloud Firestore is used for online duels, lobbies, and high scores.
Data stored:
– anonymous user ID (UID)
– high scores, progress, match data
No sensitive personal data is stored.
8. Advertising (Google AdMob)
Advertising (Google AdMob)
The app uses Google AdMob to display non-personalized advertisements.
Data processed may include:
– device advertising ID
– device information (model, OS version)
– ad impressions and clicks
– approximate location (country level)
No personalized advertising is used.
9. EU Consent
EU Consent
Users in the European Union are asked to explicitly consent to the display of banner ads.
If consent is denied, no ads are shown and the app closes.
If consent is granted, the choice is saved and will not be asked again.
10. Child Privacy
Child Privacy
The app is suitable for children and does not require real personal information.
For minors:
– no real names are required
– no personalized profiles are created
– only anonymous IDs are used
– only non-personalized ads are shown
11. Parental Responsibility
Parental Responsibility
Parents and guardians are responsible for ensuring that children do not enter real names or sensitive personal information.
Requests for deletion of data can be submitted at any time.
12. Legal Basis
Legal Basis
Art. 6(1)(b) GDPR – provision of the app
Art. 6(1)(f) GDPR – technical security, error analysis
Art. 6(1)(a) GDPR – consent for advertising
Art. 8 GDPR – child data protection
13. Data Retention
Data Retention
– game progress: until deletion or removal of the UID
– match data: short-term storage only
– ad-related data: according to Google policies
14. Data Sharing
Data Sharing
No data is sold.
Data is only shared with the following service providers:
– Google Ireland / Google LLC (Firebase, AdMob)
International data transfers rely on EU Standard Contractual Clauses (SCC).
15. International Data Transfers
International Data Transfers (USA / Google)
Since Firebase and AdMob may be operated in the United States, data may be transferred to third countries.
Processing occurs according to GDPR, SCC, and technical security measures such as encryption.
16. User Rights
User Rights
Users have the following rights:
– access
– rectification
– deletion
– withdrawal of consent
– data portability
Contact: jonaslaag3@gmail.com
17. Right to Lodge a Complaint
Right to Lodge a Complaint
Users may lodge a complaint with any data protection authority.
In Germany, the competent authority is:
Independent Centre for Privacy Protection Schleswig-Holstein (ULD)
18. Security Measures
Security Measures
Data is protected through:
– encrypted connections (HTTPS/TLS)
– Firestore security rules
– access restrictions
– regular updates
19. Changes
Changes to This Privacy Policy
This privacy policy may be updated if technical or legal requirements change.
The current version is always available within the app.