Privacy Policy for Calendar Vault

Last Updated: February 6, 2026

Introduction

This Privacy Policy describes how Calendar Vault ("we", "our", or "the app") collects, uses, and protects your information when you use our mobile application. We are committed to protecting your privacy and ensuring the security of your personal data.

Information We Collect

Information You Provide Directly

• PIN/Password: Your chosen PIN or password for app authentication (stored locally and encrypted)
• Biometric Data: Fingerprint or face recognition data (processed by your device's OS, not stored by our app)
• Contacts: Contact information you choose to hide in the vault
• Media Files: Photos, videos, and documents you choose to secure in the vault
• Calendar Events and Tasks: Events and to-do items you create within the app

Information Collected Automatically

• Device Information: Device model, operating system version
• App Usage Data: Features used, app settings, and preferences
• Location Data: Your approximate location is collected to provide weather information in the calendar feature. Location data is only transmitted to third-party weather API services and is not stored permanently by our app

How We Use Your Information

We use the collected information for the following purposes:

• Security and Authentication: To verify your identity and protect access to your vaulted content
• App Functionality: To provide core features including file vaulting, contact hiding, and calendar management
• Weather Information: To display local weather information in the calendar view based on your location
• App Customization: To save your preferences, theme choices, and icon selections
• Performance Improvement: To maintain and improve app performance and user experience

Data Storage and Security

Local Storage

• All vault content is stored locally on your device in an encrypted format
• Your photos, videos, documents, and contacts remain on your device and are not uploaded to any servers
• PIN and authentication data are encrypted using industry-standard encryption methods
• We use Android's secure storage mechanisms including encrypted databases

Data Security Measures

• End-to-end encryption for all vaulted content
• Biometric authentication support for enhanced security
• Secure file deletion when items are removed from vault
• No cloud backup of sensitive vault content

Permissions Explanation

The app requests the following permissions:

• READ_CONTACTS: To access contacts you wish to hide in the vault
• STORAGE: To access and vault photos, videos, and documents
• CAMERA: To capture photos/videos directly into the vault
• INTERNET: Required to fetch weather data from third-party weather API services
• BIOMETRIC: For biometric authentication
• LOCATION: To determine your location for displaying local weather information in the calendar view

Data Sharing and Disclosure

Limited Data Sharing

• Weather API Services: Your location data (latitude and longitude) is transmitted to third-party weather API services solely to retrieve weather information. No personal information or vault content is shared with these services.
• No Vault Content Sharing: We do not sell, trade, or share your vaulted content (photos, videos, documents, contacts) with third parties
• No Cloud Storage: Your vaulted files are not uploaded to any cloud service
• No Analytics: We do not use third-party analytics services that collect personal data
• No Advertising Networks: We do not integrate advertising networks that track user behavior
• No Data Sales: We do not sell your personal information to anyone

Your Rights and Choices

• Access: You have complete access to all data stored in the vault
• Deletion: You can delete any vaulted content at any time
• Export: You can restore vaulted files to your device storage
• Account Deletion: You can uninstall the app to remove all local data

Children's Privacy

Calendar Vault is not intended for use by children under the age of 13. We do not knowingly collect personal information from children under 13.

Data Retention

• Data is retained locally on your device until you choose to delete it
• Uninstalling the app will permanently delete all app data including vault contents
• Clearing app data in device settings will permanently delete all vault contents

Third-Party Services

Weather API Services

The app integrates with third-party weather API services to provide weather information in the calendar feature:

• Data Shared: Only your location coordinates (latitude and longitude) are transmitted to weather API providers
• Purpose: To retrieve current weather conditions and forecasts for your location
• Data Retention: We do not store weather data long-term; weather information is fetched in real-time as needed
• No Personal Information: No personal information, vault content, or device identifiers are shared with weather services
• Third-Party Privacy: Weather API providers may have their own privacy policies governing location data they receive

No Other Third-Party Integration

• We do not integrate with third-party services for advertising, analytics, or data collection
• Any future integration will be clearly disclosed and require user consent

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy in the app and updating the "Last Updated" date.

Contact Information

If you have questions or concerns about this Privacy Policy, please contact us at:

Developer: MammothDevs
Email: mammothdevs@gmail.com
Phone: +91 8637241884

Your Consent

By using Calendar Vault, you consent to this Privacy Policy and agree to its terms.

This privacy policy is effective as of the date listed above and applies to all users of Calendar Vault.