Whisperfish

An unofficial Signal client for Sailfish OS

What is Whisperfish?

Whisperfish is an unofficial, third-party native Signal client for Sailfish OS. You can install it from OpenRepos or from the package registry.

Current status

Registration broken

registration · broken · started 2026-07-08

Registering Whisperfish as a primary device currently fails due to recent Signal protocol changes. Linking as a secondary device works as a workaround.

References: whisperfish#746

Linking as secondary device broken

linking · fixed (unreleased) · started 2026-07-01 · Resolved 2026-07-09

Linking a new secondary device failed because Whisperfish expected a master_key it no longer receives from Signal. The fix is merged but not yet released.

Fixed in commit c8744290 — not yet released.

You can try an experimental build from the package registry and let us know on the forum or on Matrix if it works for you.

Support & community