UltraCalendar Privacy Policy

Last updated: April 7, 2026

INTRODUCTION

UltraCalendar ("the App") is developed by DGProjectAlpha and is committed to protecting your privacy. This privacy policy explains how we access, use, store, and share information when you use UltraCalendar.

GOOGLE USER DATA

UltraCalendar accesses the following Google user data with your explicit permission:

1. Google Calendar Events — We read your calendar event titles, times, locations, descriptions, and attendee lists to display them within the app and home screen widgets.

2. Google Tasks — We read your task lists and individual tasks (titles, due dates, completion status) to display them alongside your calendar events.

3. Google Contacts Birthdays — We read birthday dates from your Google Contacts to display birthday reminders in your calendar view.

4. Basic Profile Information — We access your Google account email address and display name for account identification within the app.

HOW WE USE YOUR DATA

All Google user data is used exclusively to:
- Display your calendar events, tasks, and birthdays in the app interface
- Show upcoming events and tasks in home screen widgets
- Send local notifications for upcoming events and tasks
- Allow you to create, edit, and delete events and tasks through the app

We do NOT use your Google user data for:
- Advertising or ad targeting
- Analytics or user profiling
- Training machine learning models
- Any purpose unrelated to the app's core calendar functionality

DATA STORAGE

All calendar data retrieved from your Google account is stored locally on your device only. This includes:
- A local SQLite database containing cached calendar events, tasks, and birthdays
- App preferences stored in Android DataStore on your device

No Google user data is transmitted to, stored on, or processed by any external servers controlled by DGProjectAlpha or any third party.

DATA SHARING

UltraCalendar does NOT share, sell, transmit, or disclose your Google user data to any third parties. Your calendar events, tasks, contacts, and personal information never leave your device.

THIRD-PARTY SERVICES

Google AdMob: The free version of UltraCalendar displays non-personalized advertisements powered by Google AdMob. AdMob may collect device identifiers (Android Advertising ID) for ad serving purposes. No calendar, task, contact, or personal Google user data is shared with AdMob or any advertisers. Premium users enjoy a fully ad-free experience.

Google Play Billing: In-app purchase transactions are processed by Google Play. DGProjectAlpha does not collect or store any payment information.

AUTHENTICATION

Google account authentication is handled entirely by Google's official sign-in service using OAuth 2.0. The app never accesses, sees, or stores your Google account password. Authentication tokens are managed securely by the Android operating system.

PERMISSIONS

The app requests only the minimum permissions necessary:
- Internet access: Required to sync with Google Calendar, Tasks, and Contacts
- Calendar read/write: Required to display and manage your calendar events
- Account access: Required for Google Sign-In authentication

ANALYTICS AND TRACKING

UltraCalendar does not use any analytics services, tracking pixels, crash reporting tools, or any other form of usage monitoring or data collection beyond what is described in this policy.

ADVERTISING

The free version of UltraCalendar displays advertisements powered by Google AdMob. Ads appear as native cards within the calendar interface. Users may dismiss individual ads temporarily. Premium users who purchase the customization upgrade enjoy an ad-free experience. The app uses the Android Advertising ID solely for ad serving. No personal data, calendar data, or Google user data is used for ad targeting or personalization.

DATA RETENTION AND DELETION

All app data is stored locally on your device. Uninstalling UltraCalendar removes all associated data, including cached calendar information and app preferences. You can also clear app data at any time through your device's Settings > Apps > UltraCalendar > Clear Data.

REVOKING ACCESS

You can revoke UltraCalendar's access to your Google account at any time by visiting https://myaccount.google.com/permissions. Once revoked, the app will no longer be able to sync your calendar data.

CHILDREN'S PRIVACY

UltraCalendar is not directed at children under the age of 13 and does not knowingly collect information from children.

CHANGES TO THIS POLICY

We may update this privacy policy from time to time. Any changes will be reflected by updating the "Last updated" date at the top of this policy. We encourage you to review this policy periodically. Continued use of the app after changes constitutes acceptance of the updated policy.

CONTACT

If you have any questions or concerns about this privacy policy or our data practices, please contact us at:

Email: dgprojectalpha@gmail.com
Developer: DGProjectAlpha
Website: https://dgprojectalpha.dev