Heimdall

Heimdall Companion – Critical messages. Always with you.

The Companion App is the mobile extension to Heimdall, the enterprise broadcast and alerting system from Elbtide GmbH. It delivers emergency alerts and important messages from your organization to your smartphone in seconds, even when the mute switch is activated or the device is locked.

FEATURES

- Critical Alerts: Bypass mute and Do Not Disturb modes

- 4 severity levels with custom sounds (Info, Warning, Critical, All Clear)

- Full-screen alerts over the lock screen

- Real-time delivery via WebSocket (typically under 3 seconds)

- Read and receive receipts
- Message archive with attachments

- Deadman's switch with heartbeat and NFC quick toggle (Factum module)

- OAuth 2.0 + PKCE via Microsoft Entra ID, Keychain storage, Remote Device Revocation

- Demo mode for testing without an account: simply enter "demo" as the instance name

REQUIREMENTS

Active access to a Heimdall SaaS instance is required. The deadman's switch requires the Heimdall Factum module.

More info: getheimdall.com