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Privacy Policy

Last updated: February 22, 2026

1. Overview

Echosphere is a personal communication platform. This privacy policy describes how information is collected and used within the application.

2. Information We Access

Echosphere accesses the following data through Google APIs:

• Google Calendar — Read and write access to calendar events for scheduling and daily context awareness.

3. How We Use Information

• Calendar data is used to provide schedule context within conversations and to manage persona-specific events.
• Data is processed locally on the user's own server. No data is transmitted to third-party services beyond the Google API.
• No data is sold, shared, or used for advertising.

4. Data Storage

• OAuth tokens are stored locally on the user's machine.
• Calendar data is fetched in real-time and not permanently stored (cached for up to 1 hour for performance).
• Conversation data and memories are stored locally in the user's own database.

5. Data Sharing

Echosphere does not share any user data with third parties. All data remains on the user's local infrastructure.

6. User Rights

Users can revoke Echosphere's access to their Google account at any time through their Google Account permissions.

7. Contact

For questions about this privacy policy, please contact us through X (Twitter).