Lattice Lattice

Press kit.

For journalists, writers, and researchers covering Lattice. Plain-language description, logo files, app screenshots, contact.

One paragraph.

Lattice is an offline-first, end-to-end encrypted, peer-to-peer messenger for the day the internet doesn't work. It moves messages between phones using only Bluetooth and Wi-Fi — no servers, no accounts, no phone numbers. Your identity is a 12-word phrase that lives only on your phone. The mesh is designed to scale to festival-density crowds and to cost almost nothing in battery between uses, so most users install it once and let it sit until they need it. Open source under the Mozilla Public License 2.0.

Two paragraphs.

Lattice is an offline-first, end-to-end encrypted messenger built for moments when the cellular network and the internet aren't available — government internet shutdowns, festival crowds, regional outages, disasters. It uses the radios already in every modern phone — Bluetooth and Wi-Fi — to pass messages between phones directly, hopping through other Lattice users in between if the recipient isn't in immediate range. There is no Lattice company server in the middle. There is no account to create. There is no phone number to provide. Your identity is a 12-word seed phrase generated on your phone, kept hardware-protected by the Secure Enclave (iOS) or StrongBox (Android), and never transmitted anywhere.

The cryptography is hybrid post-quantum: every session uses both Curve25519 (the same primitive as Signal and WhatsApp) and ML-KEM-768 (the NIST FIPS 203 post-quantum standard) so that even an adversary who later breaks one of them cannot retroactively read traffic. The protocol uses MLS (RFC 9420) for groups. The whole stack is open source under MPL 2.0; the project commits to reproducible Android builds, signed-source attestation for iOS, full publication of audit reports, and a coordinated security disclosure policy. Lattice is positioned as a companion to Signal, not a replacement — most days you'll keep using whatever messenger you already use; Lattice waits in the background for the day they stop working.

Quick facts.

Logo.

Screenshots.

Coming with v1.0 launch. Drop a note in our Matrix room for early access for review.

Honest words about Lattice.

If you want to write about Lattice, we'd rather you write something accurate than something flattering. Some honest observations:

Things we won't do.

Contact.

Press / journalist enquiries: our Matrix room

General: our Matrix room

Security: our Matrix room (PGP key linked from /security-disclosure)