1. Overview
Quizdy is an open-source, cross-platform application developed by Víctor Carreras. This policy describes how we handle your information. We believe in privacy by design: we do not collect, store, or sell your personal data.
2. Information Collection & Usage
2.1. Local Data Only
Quizdy operates on a "Local-First" principle. All data you generate remains exclusively on your device. We store:
- Quiz Content: Questions, answers, and imported JSON/files.
- Progress: Scores, history, and completion status.
- Settings: Theme preferences, language selection, and UI configurations.
- API Keys: If you use AI features, your personal API keys are stored locally using the device's secure storage. These keys are never shared with us.
2.2. No Analytics or Telemetry
We do not use Google Analytics, Firebase, Crashlytics, or any other tracking software. However, please note that the platform provider (Apple App Store or Google Play Store) may collect anonymous aggregate data regarding installations and app crashes according to their own privacy policies.
3. AI Features & Third-Party Services
Quizdy includes optional features to generate quizzes using Artificial Intelligence. These features are disabled by default. If you choose to use them, the app acts solely as a client interface.
3.1. How AI Data is Handled
- Direct Connection: Your device connects directly to OpenAI or Google servers. Your data does not pass through our servers.
- Data Sensitivity: Users are advised not to include sensitive personal information in their quiz generation prompts, as these are processed by the respective AI providers.
3.2. Third-Party Policies
When interacting with these AI services, their respective privacy policies apply to the data you submit:
- Google (Gemini): Google AI User Data Policy
- OpenAI (GPT): Privacy Policy
4. Device Permissions
To function correctly, the app may request the following permissions:
- Storage (Read/Write): Required to save your quiz progress and export/import quiz files.
- Internet/Network: Strictly required only if you use the optional AI generation features to communicate with APIs.
5. Data Security
- Encryption: API keys are stored using native secure storage (Keychain on iOS, Keystore on Android).
- Offline Capability: The app functions completely offline (excluding AI generation features).
6. Children’s Privacy
We do not knowingly collect personal identifiable information from children. Because the app does not require an account and collects no data, it is safe for use by all ages under parental guidance regarding the optional AI features.
7. Open Source License
This project is licensed under the GNU General Public License v3.0 (GPL-3.0). This ensures transparency and allows you to audit the code to verify our privacy claims.
8. User Rights & Data Control
Since we do not hold your data, you have full control on your device:
- Access/Portability: You can export your quizzes via the app settings.
- Deletion: You can delete specific quizzes within the app or uninstall the app to remove all local data immediately.
9. Contact & Support
If you have questions about this policy or the app's code, please open an issue on our repository:
GitHub Repository: vicajilau/quizdy
Note: This policy applies to the official open-source version of Quizdy.
Copyright (C) 2026 Víctor Carreras.