Privacy Policy

Smart Calendar by BIAN
Last Updated: January 18, 2026 | Effective Date: January 18, 2026

Table of Contents

1. Introduction

Welcome to Smart Calendar ("the App", "the Software", "our App", "we", "us", or "our"). This Privacy Policy explains how BIAN ("the Company", "the Developer", "we", "us") collects, uses, discloses, and safeguards your information when you use our Smart Calendar application available on Android platforms.

Smart Calendar is an intelligent scheduling application that integrates with your device's calendar system, offers voice-based event creation, and uses on-device AI for smart scheduling predictions. Due to the sensitive nature of calendar data and voice processing, we urge you to read this Privacy Policy carefully.

PLEASE READ THIS PRIVACY POLICY CAREFULLY. By downloading, installing, accessing, or using Smart Calendar, you acknowledge that you have read, understood, and agree to be bound by this Privacy Policy and our Terms of Service. If you do not agree with the terms of this Privacy Policy, you must not access or use the App.

Our Core Privacy Principle: Smart Calendar stores calendar data locally on your device by default. We integrate with your existing calendar accounts (Google Calendar, Samsung Calendar, etc.) and use Google's Speech Recognition for voice features. We do NOT independently collect or store your calendar data on our servers unless you opt-in to cloud sync features.

2. Acceptance of Terms

By using Smart Calendar, you expressly acknowledge and agree that:

  • You are at least 13 years of age (or the minimum age required in your jurisdiction)
  • You have the legal capacity to enter into this agreement
  • You consent to the access and modification of your device's calendar data
  • You consent to voice data being processed by Google's Speech Recognition services
  • You accept full responsibility for all events, appointments, and data managed through the App
  • You will use the App in compliance with all applicable laws
  • You understand that calendar data may reveal personal, professional, and sensitive information
  • You understand that the App is provided "AS IS" without warranties of any kind
  • You waive any claims against BIAN arising from your use of the App

IMPORTANT: Your continued use of the App constitutes your ongoing acceptance of this Privacy Policy and any future modifications. If you do not agree to these terms, discontinue use immediately and uninstall the App.

3. Information We Collect

3.1 Information We Do NOT Independently Collect

BIAN does NOT independently collect or store on our servers:

  • Personal identification information (name, email, phone number, address)
  • Your calendar events, appointments, or schedules (stored via Calendar Provider)
  • Voice recordings (processed by Google, not stored by us)
  • Device identifiers for tracking purposes
  • Usage analytics transmitted to our servers
  • Financial information (unless using premium features via Google Play)
  • Contact lists beyond calendar attendee information
  • Photos, videos, or media files

3.2 Data Accessed Through Android Calendar Provider

Smart Calendar accesses your device's calendar data through Android's Calendar Provider API. This data is managed by your existing calendar accounts (Google, Samsung, Microsoft, etc.):

  • Events: Event titles, descriptions, dates, times, locations
  • Attendees: Participant names and email addresses for shared events
  • Reminders: Notification settings for events
  • Calendars: List of calendar accounts on your device
  • Recurrence: Repeating event patterns
  • Colors/Categories: Event categorization data

3.3 Data Stored Locally by Smart Calendar

The following data is stored locally on YOUR device:

  • App Settings: Your preferences and configurations
  • Widget Data: Cached data for home screen widgets
  • ML Predictions: On-device learning for scheduling suggestions
  • Cache: Temporary data for performance optimization

3.4 Data Collected When Using Cloud Features (Opt-In)

If you enable cloud sync features:

  • Account Information: Email address and authentication tokens
  • Sync Preferences: Which calendars and settings to synchronize
  • Subscription Data: Premium feature entitlements

Calendar Data Sensitivity: Your calendar data can reveal highly personal information including medical appointments, religious practices, business meetings, personal relationships, travel plans, and daily routines. YOU are responsible for understanding these risks.

4. Voice Data and Speech Recognition

Smart Calendar offers voice-based event creation using speech recognition. This is a critical section regarding your privacy.

4.1 Google Cloud Speech Recognition

IMPORTANT DISCLOSURE: Voice recognition in Smart Calendar uses Google's Cloud Speech-to-Text API. When you use voice features, your voice data is transmitted to Google's servers for processing. This means:

  • Your voice audio is sent to Google over the internet
  • Google processes the audio to convert it to text
  • Google's Privacy Policy applies to this data processing
  • BIAN does NOT receive, store, or have access to your voice recordings
  • We only receive the converted text output from Google

4.2 How Voice Features Work

  1. You activate voice input (by tapping the microphone icon)
  2. Your voice is recorded by your device's microphone
  3. Audio is transmitted to Google's Speech-to-Text service
  4. Google returns transcribed text to the App
  5. The App parses the text to create calendar events
  6. No voice audio is stored by BIAN

4.3 What Google May Collect

According to Google's policies, when using their Speech API:

  • Voice audio data may be temporarily processed on Google servers
  • Google may use anonymized data to improve their services
  • Google's data retention policies apply
  • You can review Google's Privacy Policy at policies.google.com/privacy

4.4 Your Voice Data Choices

  • Voice features are OPTIONAL - you can create events manually
  • You can disable microphone permissions to prevent any voice data collection
  • You can manage your Google data through your Google Account settings

Voice Data Disclaimer: BIAN is NOT responsible for Google's handling of your voice data. By using voice features, you consent to Google's data processing. BIAN makes no representations about Google's privacy practices. If you are concerned about voice data privacy, do not use voice features.

5. Calendar Synchronization

Smart Calendar integrates with external calendar services through Android's Calendar Provider.

5.1 Calendar Accounts We Access

Smart Calendar can read and write to calendars from:

  • Google Calendar: If you have Google accounts on your device
  • Samsung Calendar: On Samsung devices
  • Microsoft Exchange/Outlook: If configured on your device
  • Local Device Calendar: Events stored only on your device
  • Other CalDAV Providers: Any calendar synced via Android Calendar Provider

5.2 What We Can Read

  • All events in calendars you grant access to
  • Event details including titles, descriptions, locations, times
  • Attendee information for shared events
  • Reminder and notification settings
  • Recurrence rules for repeating events

5.3 What We Can Write/Modify

  • Create new events in any calendar you authorize
  • Edit existing events (titles, times, details)
  • Delete events you choose to remove
  • Set or modify reminders
  • Add or remove event attendees

5.4 Sync With External Services

When you modify events through Smart Calendar, changes are synced to the respective calendar service (Google Calendar, Outlook, etc.) according to that service's sync schedule. Each service has its own privacy policy governing how it handles your calendar data.

Third-Party Calendar Warning: Smart Calendar accesses calendars through Android's system. Data synced with Google Calendar is subject to Google's Privacy Policy. Data synced with Microsoft is subject to Microsoft's Privacy Policy. BIAN is NOT responsible for how these services handle your data.

6. App Permissions

Smart Calendar requires certain device permissions to function. By granting these permissions, you acknowledge their purpose and accept responsibility for their use:

Permission Purpose Data Handling
READ_CALENDAR Read events from device calendars Data stays on device; synced via calendar providers
WRITE_CALENDAR Create, edit, delete calendar events Changes synced to respective calendar accounts
RECORD_AUDIO Voice-based event creation Sent to Google Speech API; not stored by BIAN
INTERNET Voice recognition, calendar sync, cloud features Required for speech API and sync functionality
RECEIVE_BOOT_COMPLETED Restore reminders and widgets after device restart No data transmitted; local processing only
VIBRATE Haptic feedback for notifications No data involved
POST_NOTIFICATIONS Show event reminders and alerts Notifications displayed locally on device
SCHEDULE_EXACT_ALARM Precise timing for event reminders Alarms scheduled locally; no data transmitted
GET_ACCOUNTS Identify calendar accounts on device Account names displayed in-app; not transmitted

Permission Control: You can revoke permissions at any time through device settings. Revoking calendar permissions will prevent the App from functioning. Revoking microphone permissions will disable voice features but allow manual event creation.

7. Data Storage and Retention

7.1 Local Storage

Smart Calendar stores the following data locally on your device:

  • App Settings: Preferences, display options, notification settings
  • Widget Cache: Data for home screen widgets
  • ML Model Data: On-device learning for scheduling predictions
  • Temporary Cache: Performance optimization data

7.2 Calendar Data Storage

Calendar events are NOT stored by Smart Calendar directly. They are managed by Android's Calendar Provider and synced with respective calendar services (Google, Microsoft, etc.). Each service has its own retention policies.

7.3 Data Retention

  • App settings persist until you clear app data or uninstall
  • Calendar data is managed by your calendar providers
  • Uninstalling Smart Calendar removes our local data but NOT your calendar events

8. Cloud Services (Optional)

Smart Calendar may offer optional cloud features for enhanced functionality.

8.1 Available Cloud Features

  • Settings Sync: Sync app preferences across devices
  • Cloud Backup: Backup app settings and preferences
  • Premium Features: Cloud-based enhanced functionality

8.2 Cloud Data Handling

If you enable cloud features:

  • Data is encrypted in transit (TLS 1.3) and at rest
  • We use industry-standard cloud infrastructure
  • You can disable cloud features and delete cloud data at any time
  • Account deletion removes all cloud data within 30 days

8.3 Third-Party Cloud Infrastructure

We may use third-party cloud providers (AWS, Google Cloud, etc.) to store cloud data. These providers have their own security measures and privacy policies.

Cloud Disclaimer: BIAN is NOT liable for cloud service outages, data breaches affecting cloud providers, or data loss. You use cloud features at your own risk.

9. Third-Party Services

9.1 Google Services

Smart Calendar uses the following Google services:

  • Google Speech-to-Text: Voice recognition (cloud-based)
  • Google Calendar API: Calendar synchronization (via Android)
  • Google Play Billing: Premium subscription payments
  • Google Play Services: Core Android functionality

Google's Privacy Policy (policies.google.com/privacy) applies to data processed by these services.

9.2 Other Calendar Providers

If you sync with Microsoft, Samsung, or other calendar providers, their respective privacy policies apply to data synced through their services.

9.3 Services We Do NOT Use

  • Facebook SDK or social media tracking
  • Advertising networks or ad SDKs
  • Third-party analytics that identify users
  • Data brokers or data marketplaces

Third-Party Disclaimer: BIAN is NOT responsible for the privacy practices, data handling, or conduct of third-party services including Google, Microsoft, or any calendar provider. Your use of these services is governed by their respective policies.

10. Premium Features and Subscriptions

10.1 Payment Processing

  • Payments are processed through Google Play Billing
  • We do NOT directly collect payment card information
  • Google's privacy policy applies to payment processing
  • We receive only payment confirmation, not payment details

10.2 Subscription Data

For premium subscribers, we may store:

  • Subscription status and tier
  • Purchase verification tokens
  • Subscription dates

10.3 Premium Feature Data

Some premium features may require additional data collection or processing. Specific disclosures will be provided when you activate such features.

11. Social Features and Sharing

11.1 Event Sharing

  • You can share events via standard Android sharing
  • Shared events may include dates, times, titles, locations
  • Sharing is initiated by YOU and under YOUR control

11.2 Shared Calendars

If you use shared calendars (through Google Calendar, etc.), other authorized users can see events on those calendars. This is managed by your calendar provider, not by Smart Calendar.

11.3 Social Integrations

Future versions may include social features such as shared schedules or group coordination. These features will be opt-in with specific privacy disclosures at the time of activation.

Sharing Warning: When you share calendar data, you may reveal personal schedules, appointments, and sensitive information. BIAN is NOT responsible for any consequences of data YOU choose to share.

12. Data Security

12.1 Security Measures

  • Local Encryption: Sensitive local data is encrypted
  • Transport Security: TLS 1.3 for all network communications
  • Secure APIs: OAuth 2.0 for calendar provider authentication
  • No Storage of Voice: Voice audio is not stored locally or remotely

12.2 Your Security Responsibilities

  • Secure your Google/Microsoft accounts with strong passwords and 2FA
  • Use device screen lock
  • Keep your device software updated
  • Be cautious about granting calendar access to other apps

Security Disclaimer: BIAN is NOT responsible for security breaches of your calendar provider accounts (Google, Microsoft), compromised devices, or unauthorized access resulting from weak account security or user negligence.

13. Your Rights and Choices

13.1 Access and Control

  • View: View all calendar data through the App
  • Edit: Modify any events accessible to the App
  • Delete: Remove events and clear app data
  • Export: Export calendars via your calendar provider
  • Revoke: Remove app permissions at any time

13.2 Voice Data Rights

  • You can disable voice features by revoking microphone permission
  • Manage Google voice data through your Google Account settings
  • BIAN does not store voice data to delete

13.3 GDPR Rights (EU/EEA Users)

EU/EEA residents have GDPR rights. For calendar data managed by Google/Microsoft, exercise rights through those providers. For data we process, contact us.

13.4 CCPA Rights (California Users)

  • Right to know what personal information is collected
  • Right to delete personal information
  • We do NOT sell your personal information

14. Children's Privacy

Smart Calendar is not intended for children under 13 years of age.

  • We do NOT knowingly collect data from children under 13
  • If we discover such data, we will delete it promptly
  • Parents should supervise children's use of calendar and voice features

Parental Warning: Voice features send audio to Google. Calendar data may contain sensitive information. Parents should carefully consider whether children should use these features.

15. International Users and Data Transfers

15.1 Global Service

Smart Calendar is available worldwide. By using the App, you consent to data processing in accordance with this Policy regardless of your location.

15.2 Data Transfers

  • Voice data is processed by Google in their global infrastructure
  • Calendar sync involves data transfer to calendar provider servers
  • Cloud features may involve international data transfers
  • By using these features, you consent to such transfers

15.3 Local Law Compliance

It is YOUR responsibility to ensure your use of the App complies with local laws in your jurisdiction.

16. Changes to This Privacy Policy

We may update this Privacy Policy at any time. Changes are effective immediately upon posting.

  • Updates will include a new "Last Updated" date
  • Material changes may be notified through the App
  • Continued use constitutes acceptance of changes
  • Review this Policy periodically

17. Disclaimer of Warranties

THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.

BIAN does not warrant that:

  • The App will meet your requirements
  • Calendar sync will be uninterrupted or error-free
  • Voice recognition will be accurate
  • Event reminders will be delivered on time
  • The App will be compatible with all devices or calendar providers
  • AI scheduling predictions will be accurate

18. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, BIAN SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, PUNITIVE, OR EXEMPLARY DAMAGES ARISING FROM YOUR USE OF THE APP.

BIAN is NOT liable for:

  • Missed appointments or events due to reminder failures
  • Calendar sync errors or data loss
  • Voice recognition errors or misinterpretations
  • Inaccurate AI scheduling suggestions
  • Data processed by Google or other third-party services
  • Consequences of shared or exposed calendar data
  • Business losses from scheduling errors
  • Personal or professional consequences from App failures

MAXIMUM LIABILITY: BIAN's total liability shall not exceed the amount paid for premium features in the 12 months preceding the claim.

19. Indemnification

You agree to defend, indemnify, and hold harmless BIAN from any claims arising from:

  • Your use of the App
  • Your violation of this Privacy Policy
  • Your violation of any laws or third-party rights
  • Content of your calendar events
  • Your use of voice features
  • Calendar data you share with others
  • Consequences of missed or incorrect events/reminders

20. Governing Law and Dispute Resolution

20.1 Governing Law

This Privacy Policy is governed by applicable laws without regard to conflict of law provisions.

20.2 Dispute Resolution

Disputes shall first be resolved through good-faith negotiation. If unresolved within 30 days, disputes may proceed to binding arbitration or court as permitted by law.

20.3 Class Action Waiver

CLAIMS WILL BE BROUGHT SOLELY IN YOUR INDIVIDUAL CAPACITY, NOT AS PART OF ANY CLASS OR REPRESENTATIVE PROCEEDING.

20.4 Severability

If any provision is unenforceable, it shall be limited to the minimum extent necessary, with remaining provisions in full force.

21. Contact Information

For questions about this Privacy Policy, contact us:

We will respond within 30 days. We may verify your identity before processing requests.

Acknowledgment

BY DOWNLOADING, INSTALLING, OR USING SMART CALENDAR, YOU ACKNOWLEDGE THAT YOU HAVE READ THIS PRIVACY POLICY, UNDERSTOOD IT, AND AGREE TO BE BOUND BY ITS TERMS. YOU SPECIFICALLY ACKNOWLEDGE THAT VOICE DATA IS PROCESSED BY GOOGLE'S CLOUD SERVICES AND THAT CALENDAR DATA IS MANAGED BY THIRD-PARTY CALENDAR PROVIDERS. YOU ACCEPT ALL RISKS ASSOCIATED WITH THE COLLECTION, PROCESSING, AND POTENTIAL DISCLOSURE OF YOUR CALENDAR AND VOICE DATA.

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