Privacy Policy

Last updated: May 7, 2026

Overview

NudgeCal ("the App") is a calendar alert management application for Android. Your privacy is important to us. This policy explains what data the App accesses, how it is used, and your rights regarding that data.

Data Collection

NudgeCal does not collect, transmit, or share any personal data.

The App does not connect to the internet. There are no analytics, tracking, advertising, or telemetry of any kind. The App does not request the INTERNET permission.

Data Access

NudgeCal accesses the following data stored on your device:

Calendar data: The App reads your calendar events (event title, time, location, description, calendar name, and color) to display alert notifications and manage snooze/dismiss actions. With your permission, it may also write to your calendar to update event reminders.
Notification permission: On Android 13 and above, the App requests permission to post notifications for calendar alerts.

Data Storage

All data is stored locally on your device only:

Event alert records are stored in a local database to track active and dismissed alerts.
User preferences (settings such as snooze presets, quiet hours, theme) are stored in Android DataStore on your device.

No data leaves your device at any time. There are no servers, cloud storage, or external services involved.

Data Sharing

NudgeCal does not share data with any third parties. There are no advertising SDKs, analytics services, or social media integrations.

Data Retention

Dismissed event records are automatically deleted after a configurable period (default: 14 days). You can change this in Settings or set it to "Never" to keep records indefinitely. You can also manually clear all stored data from the Settings screen at any time.

Your Rights

You have full control over your data:

You can export all stored event data from the App.
You can delete all stored data at any time from Settings.
You can revoke calendar or notification permissions at any time through your device's system settings.
Uninstalling the App removes all locally stored data.

Children's Privacy

NudgeCal does not knowingly collect data from children. The App does not collect data from anyone.

Changes to This Policy

If this privacy policy changes, the updated version will be posted on this page with a revised date. Since the App does not collect data, significant changes are unlikely.

Contact

If you have questions about this privacy policy, please open an issue on our GitHub repository.