What’s new in Nullix

October 2026 · version 1.5

Security

• A new encryption core built on libsignal, with post-quantum key agreement (PQXDH) for new sessions.
• Sealed sender: the server no longer learns who sent a message between contacts.
• Message padding, so length gives nothing away.
• Maximum protection: keys locked with your passcode and the phone’s security chip, with an optional password instead of six digits.
• Signed app updates.
• Photos and videos are stripped of location, camera details and dates before sending.
• Notifications without message text by default.

Privacy

• Message requests from people you don’t know.
• Who can message you, call you and add you to groups — enforced by the server.
• Calls with people you haven’t accepted always go through a relay.

Connection

• Backup entries with an encrypted tunnel when the direct route is blocked.
• A signed list of entries, and proxies you can share as links.

Chats

• Saved Messages, view-once photos and videos, polls and @mentions.
• Hidden chats, folders and send later.
• Voice messages as text (iPhone) and translation on the device.
• A redesigned app for iOS 26, with light and dark themes.

August 2026 · version 1.3

• Private chats, attachments, voice messages and one-to-one calls.
• Passcode, biometric lock, active devices and the recovery phrase.
• A website with a transparent description of the architecture and its limits.

Known limitations

• Each account lives on one phone for now.
• Calls on strict networks depend on relay availability.
• The status page is maintained by hand.

Current focus

• Reliability first: delivery, session recovery and calls across different networks.
• Sealed sender for calls and groups.