Connect your trusted devices.

Currently available · SMS Push inbox

Pair an Android sender with a trusted receiving device. Messages are encrypted before delivery and decrypted in the receiving PWA. Push notifications are available where the browser supports them.

The PWA interface currently starts in Korean. English PWA support is being prepared separately.

Android App — Korean version available

The current Android release uses Korean UI and provides SMS filtering, encryption, and delivery to trusted devices.

English version — Coming soon

SMS_PHONE automatic sending may require Android SEND_SMS permission. PUSH_DEVICE encrypted delivery remains a separate path.

Product direction

The current product focuses on safely delivering and checking important SMS messages. Future ideas include selectively collecting other notifications, organizing links and notes, and communicating through end-to-end encrypted channels with trusted people.

These are future plans, not currently available features.

How it works

1. Install the Korean Android app and configure SMS permissions and filters.
2. Pair the Android sender with a receiving PWA and register the Relay connection.
3. Read the encrypted message on the trusted device and send a receipt when supported.

Privacy and backups

SMS messages are encrypted on the sending device. The Relay stores only encrypted messages temporarily, and the receiving device removes them after saving and acknowledging them. Notification previews do not include the SMS body or sender number.

Android and PWA message history can be manually backed up to Google Drive as an encrypted backup. The backup key and recovery password are not sent to the server.