Privacy Policy

Last updated: March 2026

Preamble is a privacy-first app. Except for explicitly requested syncing with Google Calendar and Tasks, your data never leaves your device. We collect nothing — zero tracking, zero analytics, and zero hidden network calls.

1. Data Collection

Preamble operates fundamentally on your device. We do not collect, sell, steal, or secretly transmit any personal data whatsoever to our own servers. Internet connectivity is only used if you choose to sync your tasks and events directly with your personal Google account.

2. Google API Services & Data Usage

To provide seamless synchronization, Preamble optionally utilizes Google's official APIs to connect directly with your account. We request the following scopes:

Google Tasks (https://www.googleapis.com/auth/tasks): Used to read, write, and sync your tasks securely.
Google Calendar (https://www.googleapis.com/auth/calendar): Used to read, write, and sync your calendar events securely.

Strict Privacy Commitment: Data accessed via these Google APIs is processed directly between your device and Google's servers to facilitate synchronization. We do not transmit this data to our own servers, nor do we sell, rent, scrape, or steal any user data. Your information is used securely and transparently only for the app's core features.

3. Data Storage

All your data is stored locally on your device using Room Database (SQLite). This includes:

Tasks and their completion status
Deadline times and alarm settings
Theme preferences (selected color)
App settings and preferences

We do not maintain any cloud databases or central servers with your information.

4. Permissions

Preamble requests the following permissions, all used locally:

Notifications — To show persistent task notifications and alarm alerts
Alarms — To schedule task deadline alarms using AlarmManager
Microphone — For voice task input (processed on-device via Android's SpeechRecognizer, no audio is transmitted)

5. Third-Party Services

Beyond the optional Google API integrations for task and calendar synchronization, Preamble uses no third-party services. This means:

No analytics (no Google Analytics, Firebase Analytics, or similar)
No crash reporting services
No advertising SDKs
No cloud storage or our own sync services
No social media tracking

6. Voice Input

Voice input is processed entirely on your device using Android's built-in SpeechRecognizer. No audio recordings are stored or transmitted. The recognized text is saved as a task title locally.

7. Data Deletion

Since data is stored locally, you remain fully in control. You can delete all app data by:

Uninstalling the app
Clearing app data from Android Settings → Apps → Preamble → Clear Data
Revoking Preamble's access to your Google account via your Google Security settings

8. Children's Privacy

Preamble does not collect any data from anyone, including children under 13. There are no age restrictions for using the app.

9. Changes to This Policy

If we make any changes to this privacy policy, we will update this page. Since our data practices are inherently localized and transparent, significant structural changes are unlikely.

10. Contact

If you have any questions about this privacy policy, contact us at: