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Privacy First Architecture

Privacy Policy

Last Updated: July 25, 2026

Our Privacy Commitment

At CALL, our core philosophy is simple: “A messaging app is just for messages, not for garbage information.” We do not sell ads, track user behavior across the web, or collect conversation metadata. Every text message, voice call, and video call is sealed with end-to-end encryption so that only the intended recipient can read or listen to them.

1. Information We Do Not Collect

Unlike traditional messaging services that record chat history, index media uploads, and build advertising profiles, CALL is engineered to minimize data processing by default:

  • No Message Plaintext: We cannot read your text messages, view shared photos, or listen to voice notes.
  • No Call Recording: Voice and video calls are transmitted via peer-to-peer encrypted channels.
  • No Third-Party Trackers: We do not embed ad SDKs or behavioral analytics trackers.

2. End-to-End Encryption Scope

End-to-end encryption (E2EE) is active by default for all communications on CALL:

Encrypted Chat

Text messages, photos, videos, and documents encrypted with Curve25519 and AES-256-GCM.

Encrypted Voice Calls

Audio calls use SRTP session key negotiation so only your recipient hears your voice.

Encrypted Video Calls

Video channels render via WebRTC with peer-to-peer stream encryption.

3. Contact Information

If you have any questions regarding our Privacy Policy, please contact our security team at:

privacy@call1.jp