Privacy Policy

1. Introduction

Stundenzettel ("we", "our", "us") respects your privacy. This policy explains how we collect, use, and protect your personal data in accordance with the General Data Protection Regulation (GDPR).

2. Data Controller

3. Data We Collect

3.1 Authentication Data

Source: Firebase Auth (including Apple Auth, Google Auth)

Purpose: User login and identification

Processing: Storage and management of authentication data on Firebase servers

• Email address (if you sign in)
• Authentication provider ID (Google/Apple)

Note: This data is only used for identification within the app and is not shared with third parties.

3.2 App-Related Data

Purpose: Providing app functionality and storing your time-tracking data

Processing: Storage on Firebase infrastructure

• Time entries and work hours you record
• Break times and overtime calculations
• Reports and export history
• App preferences and settings

3.3 Google Analytics

Source: Google Analytics

Purpose: Analysis of app usage to improve user experience and app performance

Processing: Google Analytics collects usage data (e.g., session duration, page views, interactions)

Note: Data collected by Google Analytics is anonymized and not linked to personal data. Data is stored on Google servers.

3.4 Firebase Crashlytics

Source: Firebase Crashlytics

Purpose: Collection of crash and error reports to improve app stability and performance

Processing: Crashlytics collects technical data about app crashes and errors occurring on user devices

Note: This data does not contain personal information and is used to identify and fix technical issues.

3.5 Advertising

Source: Google AdMob

Purpose: Display of advertisements within the free version of the app

Processing: AdMob may collect device identifiers and usage data to display relevant advertisements

Note: You can opt out of personalized advertising in your device settings.

4. Legal Basis for Processing

Processing of personal data is based on Art. 6 (1) lit. b GDPR (contract performance), as processing is necessary for app usage. For analytics and crash reporting, processing is based on Art. 6 (1) lit. f GDPR (legitimate interest in improving our services). For advertising, processing is based on Art. 6 (1) lit. a GDPR (consent).

5. Data Storage & Security

Your data is stored securely using Firebase (Google Cloud) servers. The app uses modern security measures to protect personal data from unauthorized access or loss. Data transmission is encrypted, and storage occurs on secure Firebase servers.

6. Data Sharing

We do not sell or share your personal data with third parties. Storage and processing occur exclusively within Google's Firebase infrastructure. Data collected by Google Analytics and Firebase Crashlytics may be shared with Google in anonymized form.

Service providers we use:

• Firebase/Google (infrastructure provider)
• Google AdMob (advertising)
• Apple/Google (for sign-in)

7. Your Rights (GDPR)

Under GDPR, you have the following rights:

• Right of access (Art. 15 GDPR) – Request a copy of your stored data
• Right to rectification (Art. 16 GDPR) – Correct inaccurate or incomplete data
• Right to erasure (Art. 17 GDPR) – Request deletion of your personal data
• Right to restriction (Art. 18 GDPR) – Restrict processing of your data
• Right to data portability (Art. 20 GDPR) – Receive your data in a portable format
• Right to object (Art. 21 GDPR) – Object to certain processing activities

To exercise these rights, contact us at the address above.

8. Data Retention & Deletion

Data is stored as long as necessary for app usage. Users can request deletion of their data at any time by contacting the data controller or by deleting their account within the app. Upon account deletion, all personal data is permanently deleted.

9. Children's Privacy

The app is not intended for children under 16. We do not knowingly collect data from children.

10. Changes to This Policy

This privacy policy may be updated if the app changes or legal requirements change. Users will be notified of significant changes.

11. Contact

For questions or concerns about data processing, contact us at: hauke.olf@gmail.com